MECH VAN CATALOGUE.pdf

Embed Size (px)

Citation preview

  • COMPANY HISTORY

    Business Started from Grey Iron Pot

    Malleable Iron Pipe Fittings

    Export, Main Market: Southeast Asia

    Self Export, Developped US and European Market

    Steel Pipe NipplesRed Brass Pipe Nipples

    Ductile Iron Grooved FittingsBronze Fittings, Ball Valves

    Electric Power Fittings

    Valve Business Development

    Extra-heavyBrass Pipe Nipples

    Steel Pipe Development

    1960

    1961

    1962

    1963

    1964

    1965

    1966

    1967

    1968

    1969

    1970

    1971

    1972

    1973

    1974

    1975

    1976

    1977

    1978

    1979

    1980

    1981

    1982

    1983

    1984

    1985

    1986

    1987

    1988

    1989

    1990

    1991

    1992

    1993

    1994

    1995

    1996

    1997

    1998

    1999

    2000

    2001

    2002

    2003

    2004

    2005

    2006

    2007

    2008

    2009

    2010

    2011

    2012

    2013

    Malleable Iron Pipeclamp Fittings

    Ductile Iron Pipe Fittings

    Cast Iron Fittings

    Pipe Hangers and Brackets

  • 10 11

    BS VALVES

    BS 5163 Resilient Wedge Gate Valve Statement:

    Gate valves serve to cut the medium flow in the piping system, widely used in the field of potable water, water supply and drainage, sewage disposal, irrigation, air conditioning, fire protection as well as chemical and energy industry.

    Features: 1. Material: Ductile Iron EN-GJS-450-10Body, bonnet, wedge, handwheel and operating nut are all produced in ductile iron material which provides guarantee for high strength and good corrosion resistance.2. Triple O-ring Stem SealsThe lower O-ring isolates the stem thrust collar bearing area from the waterway. The upper two O-rings can easily be replaced in the line while the valve is under pressure in the open position.3. Stainless Steel Stem, Brass Thrust Collar and Bronze Wedge NutThis life-tested MEIDE design has repeatedly proven its superior strength and abrasive resistance.4. Fusion Bonded Epoxy CoatingFusion bonded epoxy coating in accordance with ANSI/AWWA C550 for both interior and exterior surface which provides reliable corrosion resistance.5. Long Service Life with Resilient Seat Cycling Test 1,000 timesThe Valve has been subjected to 1,000 cycles of operation at a maximum rate of 6 cycles of operation per minute from fully closed to fully open and from fully open to fully closed positions under cycled hydrostatic pressure.

    Body, Bonnet, Wedge & Operating Nut in Ductile Iron

    Triple O-ring Stem Seals

    Stainless Steel Stem and Brass Thrust Collar

    Bronze Alloy Wedge Nut

    Fusion Bonded Epoxy Coating

    Note: For special material request other than standard specication, please indicate clearly on the inquiry or order list.

    Connection Ends: Flange to BS EN 1092-2:1997

    Working Pressure: PN10/PN16

    Temperature Range: 0- 80

    Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550

    MATERIAL SPECIFICATION

    Z45X

    Z81XGrooved Resilient OS&Y Gate Valve

    Page 15

    Z85XGrooved Resilient NRS Gate Valve

    Page 14

    Z41XFlanged Resilient OS&Y Gate Valve

    Page 13

    Z45XBFlanged Resilient NRS Gate Valve Type B

    Page 12

    Z45XFlanged Resilient NRS Gate Valve Type A

    Page 11 Z45X-1 Z45XC

    BS 5163 Flanged Resilient NRS Gate Valve Type A T Key (Z45X) PN10/16, UL/FM Approved

    DNPN

    Dimensions(mm)

    Inch mm L H D D1 d C T n-d2" 50 10/16 178 218 165 125 99 19 3 4-19

    2.5" 65 10/16 190 232 185 145 118 19 3 4-193" 80 10/16 203 281 200 160 132 19 3 8-194" 100 10/16 229 316 220 180 156 19 3 8-195" 125 10/16 254 393 250 210 184 19 3 8-196" 150 10/16 267 420 285 240 211 19 3 8-23

    8" 20010

    292 490 340 295 266 20 38-23

    16 12-23

    10" 25010

    330 626 405350

    319 22 312-23

    16 355 12-28

    12" 30010

    356 722 460400

    370 24.5 412-23

    16 410 12-28

    14" 35010

    381 800 520460

    428 26.5 416-23

    16 470 16-28

    16" 40010

    406 870 580515

    480 28 416-28

    16 525 16-31

    18" 45010

    650 1150 640565

    548 30 420-28

    16 585 20-31

    20" 50010

    700 1250 715620

    609 31.5 420-28

    16 650 20-34

    24" 60010

    800 1350 840725

    720 36 420-31

    16 770 20-37

    Part No. Part Standard Specication Options

    1 Valve Body EN-GJS-450-102 Resilient Wedge Disc EN-GJS-450-10+EPDM

    3 Stem SS420 SS304, SS316, SS431, Al-bronze4 Nut Carbon Steel Zinc Plated SS304, SS3165 Bonnet EN-GJS-450-106 O-Ring NBR EPDM7 Gland EN-GJS-450-108 Handwheel EN-GJS-450-10 Pressed Steel9 Bolt Carbon Steel Zinc Plated SS304, SS31610 Flat Washer Carbon Steel Zinc Plated SS304, SS31611 Ring Wiper NBR EPDM12 Bolt Carbon Steel Zinc Plated SS304, SS31613 Flat Washer Carbon Steel Zinc Plated SS304, SS31614 O-Ring NBR EPDM15 Thrust Washer Brass HPb59-116 Bonnet Gasket EPDM NBR17 Wedge Nut Brass HPb59-1 Bronze ZQSn5-5-5

    IPVertical Indicator Post

    Details for electric drive available upon request.XZA SMC

    Z45XC-2Flanged Resilient NRS

    Gate Valve with Post Flange

  • 12 13

    BS VALVES

    DNPN

    Dimensions(mm)Inch mm L H D D1 d C T n-L

    2" 5010

    178 254 165 125 99 19 34-19

    16

    2.5" 6510

    190 275 185 145 118 19 34-19

    16

    3" 8010

    203 301 200 160 132 19 38-19

    16

    4" 10010

    229 355 220 180 156 19 38-19

    16

    5" 12510

    254 393 250 210 184 19 38-19

    16

    6" 15010

    267 448 285 240 211 19 38-23

    16

    8" 20010

    292 548 340 295 266 20 38-23

    16 12-23

    10" 25010

    330 626 405 350355 319 22 312-23

    16 12-28

    12" 30010

    356 722 460400

    370 24.5 412-23

    16 410 12-28

    14" 35010

    381 800 520460

    428 26.5 416-23

    16 470 16-28

    16" 40010

    406 870 580515

    480 28 416-28

    16 525 16-31

    18" 45010

    650 1150 640565

    548 30 420-28

    16 585 20-31

    20" 50010

    700 1250 715620

    609 31.5 420-28

    16 650 20-34

    24" 600 10 800 1350 840 725 720 36 4 20-3116 770 20-37

    BS 5163 Flanged Resilient NRS Gate Valve Type B Ring Key and Bar (Z45XB) PN10/16, UL/FM Approved

    Part No. Part Standard Specication Options1 Valve Body EN-GJS-450-102 Resilient Wedge disc EN-GJS-450-10+EPDM3 Stem SS431 SS304, SS316, Al-bronze4 Bonnet Gasket EPDM NBR5 Bonnet EN-GJS-450-106 O-Ring NBR EPDM7 Gland EN-GJS-450-108 Handwheel EN-GJS-450-10 Pressed Steel9 Bolt Carbon Steel Zinc Plated SS304, SS31610 Flat Washer Carbon Steel Zinc Plated SS304, SS31611 Ring Wiper EPDM NBR12 O-Ring NBR EPDM13 Nut Carbon Steel Zinc Plated SS304, SS31614 Axis guide Brass Hpb59-115 Washer Brass Hpb59-116 O-Ring NBR EPDM17 Nut Carbon Steel Zinc Plated SS304, SS31618 Wedge nut Brass Hpb59-1 Bronze ZQSn5-5-5

    Connection Ends: Flange to BS EN 1092-2:1997

    Working Pressure: PN10/PN16

    Temperature Range: 0- 80

    Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550

    Z45XB

    Z45XBCZ45XB-1

    MATERIAL SPECIFICATION

    Note: For special material request other than standard specication, please indicate clearly on the inquiry or order list.

    DNPN

    Dimensions(mm)

    Inch mm L H1(Close)H2

    (Open) D D1 d C T n-L

    2" 5010

    178 257 307 165 125 99 19 3 4-1916

    2.5" 6510

    190 305 370 185 145 118 19 3 4-1916

    3" 8010

    203 350 430 200 160 132 19 3 8-1916

    4" 10010

    229 422 522 220 180 156 19 3 8-1916

    5" 12510

    254 515 640 250 210 184 19 3 8-1916

    6" 15010

    267 563 713 285 240 211 19 3 8-2316

    8" 20010

    292 675 875 340 295 266 19 38-23

    16 12-23

    10" 25010

    330 905 1155 405350

    319 22 312-23

    16 355 12-28

    12" 30010

    356 1030 1330 460400

    370 24.5 412-23

    16 410 12-28

    14" 35010

    381 1210 1560 520460

    429 26.5 416-23

    16 470 16-28

    16" 40010

    406 1280 1680 580515

    480 28 416-28

    16 525 16-31

    18" 450 10 650 1700 2150 640 565 548 30 4 20-2816 585 20-31

    BS 5163 Flanged Resilient OS&Y Gate Valve (Z41X) PN10/16, UL/FM Approved

    Connection Ends: Flange to BS EN 1092-2:1997

    Working Pressure: PN10/PN16

    Temperature Range: 0- 80

    Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550

    Part No. Part Standard Specication Options1 Valve Body EN-GJS-450-102 Resilient Wedge Disc EN-GJS-450-10+EPDM3 O-ring NBR EPDM4 Stem SS420 SS304, SS16, Al-bronze5 Nut Carbon Steel Zinc Plated SS304, SS3166 Bonnet EN-GJS-450-107 Stem Bushing Brass Hpb59-18 Gland EN-GJS-450-109 Flat Washer Carbon Steel Zinc Plated SS304, SS316

    10 Stud Carbon Steel Zinc Plated SS304, SS31611 Nut Carbon Steel Zinc Plated SS304, SS31612 Yoke EN-GJS-450-1013 Nut Brass Hpb59-114 Washer Brass Hpb59-115 Locknut Carbon Steel Zinc Plated16 Handwheel EN-GJS-450-10 Pressed Steel17 Stem Packing NBR EPDM18 Bonnet Gasket EPDM NBR

    Z41X

    MATERIAL SPECIFICATION

    Note: For special material request other than standard specication, please indicate clearly on the inquiry or order list.

  • 14 15

    BS VALVES

    Part No. Part Standard Specication Options

    1 Valve Body EN-GJS-450-102 Resilient Wedge Disc EN-GJS-450-10+EPDM3 Stem SS420 SS304, SS316, Al-bronze4 Nut Carbon Steel Zinc Plated SS304, SS3165 Bonnet EN-GJS-450-106 O-Ring NBR EPDM7 Gland EN-GJS-450-108 Handwheel EN-GJS-450-10 Pressed Steel9 Bolt Carbon Steel Zinc Plated SS304, SS31610 Flat Washer Carbon Steel Zinc Plated SS304, SS31611 Ring Wiper NBR EPDM12 Bolt Carbon Steel Zinc Plated SS304, SS31613 Flat Washer Carbon Steel Zinc Plated SS304, SS31614 O-Ring NBR EMDM15 Washer Brass HPb59-116 Bonnet Gasket EPDM NBR17 Wedge Nut Brass HPb59-1 Bronze ZQSn5-5-5

    Note: For special material request other than standard specication, please indicate clearly on the inquiry or order list.

    BS 5163 Grooved Resilient OS&Y Gate Valve (Z81X), PN10/16

    Connection Ends: Groove to ISO 6182

    Working Pressure: PN10/PN16

    Temperature Range: 0- 80

    Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550 or painting upon request

    Connection Ends: Groove to ISO 6182

    Working Pressure: PN10/PN16

    Temperature Range: 0- 80

    Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550 or painting upon request

    Part No. Part Standard Specication Options

    1 Valve Body EN-GJS-450-102 Resilient Wedge Disc EN-GJS-450-10+EPDM3 O-Ring NBR EPDM4 Stem SS420 SS304, SS316, Al-bronze5 Nut Carbon Steel Zinc Plated SS304, SS3166 Bonnet EN-GJS-450-107 Stem Bushing Brass Hpb59-18 Gland EN-GJS-450-109 Flat Washer Carbon Steel Zinc Plated SS304, SS316

    10 Stud Carbon Steel Zinc Plated SS304, SS31611 Nut Carbon Steel Zinc Plated SS304, SS31612 Yoke EN-GJS-450-1013 Stem Nut Brass Hpb59-1 Bronze ZQSn5-5-514 Washer Brass Hpb59-115 Locknut Carbon Steel Zinc Plated16 Handwheel EN-GJS-450-10 Pressed Steel17 Stem Packing NBR EPDM18 Bonnet Gasket EPDM NBR

    MATERIAL SPECIFICATION MATERIAL SPECIFICATION

    Note: For special material request other than standard specication, please indicate clearly on the inquiry or order list.

    Z85XZ81X

    DN Dimensions(mm)

    Inch mm L H OD d A B2" 50 178 218 60.3 57.15 15.88 7.92

    2.5" 65 190 230 73 69.09 15.88 7.922.5" 65 190 230 76.1 72.26 15.88 7.923" 80 203 281 88.9 84.94 15.88 7.924" 100 229 316 114.3 110.08 15.88 9.525" 125 254 393 139.7 135.48 15.88 9.525" 125 254 393 141.3 137.03 15.88 9.526" 150 267 420 165.1 160.90 15.88 9.526" 150 267 420 168.3 163.96 15.88 9.528" 200 292 490 219.1 214.40 19.05 11.13

    10" 250 330 626 273.0 268.28 19.05 12.7012" 300 356 722 323.9 318.29 19.05 12.70

    DN Dimensions(mm)

    Inch mm L H1(Close) H2(Open) OD d A B

    2" 50 178 257 307 60.3 57.15 15.88 7.92

    2.5" 65 190 305 370 73 69.09 15.88 7.92

    2.5" 65 190 305 370 76.1 72.26 15.88 7.92

    3" 80 203 350 430 88.9 84.94 15.88 7.92

    4" 100 229 422 522 114.3 110.08 15.88 9.52

    5" 125 254 516 640 139.7 135.48 15.88 9.52

    5" 125 254 516 640 141.3 137.03 15.88 9.52

    6" 150 267 563 713 165.1 160.90 15.88 9.52

    6" 150 267 563 713 168.3 163.96 15.88 9.52

    8" 200 292 675 875 219.1 214.40 19.05 11.13

    10" 250 330 904 1158 273.0 268.28 19.05 12.70

    12" 300 356 1030 1335 323.9 318.29 19.05 12.70

    Z55X

    BS 5163 Grooved Resilient NRS Gate Valve (Z85X), PN10/16

  • 16 17

    BS VALVES

    BS EN 593 Resilient CenterlineButtery Valve Statement:

    Resilient centerline buttery valves usually serve to cut off medium ow in the piping system, widely applied in the field of potable water, water supply and drainage, sewage disposal, irrigation, air conditioning, re protection as well as chemical and energy industry. The design of the buttery valves, however, makes it also suitable to serve as adjusting valve.

    Features: 1. Material: Body and lever are all produced in ductile iron material (EN-GJS-450-10) which provides guarantee for high strength and good corrosion resistance.Different options of the disc and seat, e.g. disc of DI nickel or nylon 11 coated, different series of stainless steel, Al-bronze, seat in EPDM, NBR or Fluororubber, makes it suitable to be applied under different working conditions.2. Design: Universal ange connection to BS EN 1092 PN6/10/16, ANSI B16.1 CLASS 125/150, GB9113, JIS B2112 10K, AS 2129 Table E, BS 10 Table D/E. Different options of operation including lever handle, gear box, gear box with tamper switch, electric drive, and pneumatic drive, etc.Different options of rubber seat including insert rubber seat, rubber vulcanized on valve body and boot rubber seat. 3. CoatingFusion bonded epoxy coating of valve body and lever provides reliable corrosion resistance.To achieve higher corrosion resistance, factory is also able to supply Nylon 11 coated disc. Nylon 11 coating is thermoplastic plant coating approved by USDA with high corrosion resistance and antisepsis which can be applied where there is strict requirement for anti-corrosion.

    Ductile Iron Lever and Body

    Stainless Steel Stem

    Fusion Bonded Epoxy Coating

    Disc: DI, Stainless Steel or Al-bronze

    Seat: EPDM/NBR/Fluororubber with backing

    BS EN 593 Wafer Buttery Valve (D71X4, D371X4, XD371X4), PN10/16

    Design Standard: BS EN 593

    Connection Ends: BS EN 1092 PN10/PN16, AS 2129 TABLE E, JIS B2212 10K, BS 10 TABLE D/E

    Top Flange Standard: ISO 5211 Stem drive by keys, parallel or diagonal square or at head

    Working Pressure: PN10/PN16

    Temperature Range: 0- 80

    Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550

    Part No. Part Standard Specication Options

    1 Valve Body EN-GJS-450-10

    2 Seat EPDM & BackingNBR/Fluororubber & Backing; EPDM/NBR Vulcanized on Valve Body; Soft Seat in EPDM/NBR;

    3 Disc EN-GJS-450-10 SS304, SS316, AL-Bronze UNC 954004 Stem SS420 SS304, SS316, SS416, SS4315 O-Ring NBR EPDM6 Bushing Nylon 1010 PTFE7 Lever EN-GJS-450-10 Aluminum

    DN Dimensions(mm)

    Inch mm A B C D D1 V 2 N- G L ISO 52111.5" 40 138 64.5 33 43.9 110 32 12.6 4-19 9.45 267 F072" 50 140.5 64.5 43 53.9 125 32 14 4-19 9.53 267 F07

    2.5" 65 153 72 46 65.2 145 32 14 4-19 9.53 267 F073" 80 157.5 86 46 79.7 160 32 14 8-19 9.53 267 F074" 100 176 100 52 105 180 32 16 8-19 11.14 267 F075" 125 191 112 56 130 210 32 16 8-19 11.14 267 F076" 150 202.5 128 56 156 240 32 20 8-23 12.7 267 F078" 200 243.5 162 60 206.7 295 45 26 12-23 20.6 356 F10

    10" 250 273 194 68 253.3 355 45 26 12-28 20.6 356 F1012" 300 311 223 78 301.9 410 45 28 12-28 22.1 490 F1014" 350 340 267 78 333.9 470 45 31.6 16-28 22.1 F1216" 400 400 300 102 389.6 525 48 33.2 16-31 27 F14

    Note: Not designed for dead end service

    D71X4Wafer Buttery Valve

    Page 17

    D71XL4 Lugged Wafer Buttery Valve

    Page 18

    D41X4Flanged Buttery Valve

    Page 19

    D81X4Grooved Buttery Valve

    Page 20

    Details for electric drive available upon request.

    MATERIAL SPECIFICATION

    Note: For special material request other than standard specication, please indicate clearly on the inquiry or order list.

    D71X4

    D371X4 XD371X4

  • 18 19

    BS VALVES

    Part No. Part Standard Specication Options

    1 Valve Body EN-GJS-450-10

    2 Seat EPDM & BackingNBR/Fluororubber & Backing;EPDM/NBR Vulcanized on Valve Body;Soft Seat in EPDM/NBR;

    3 Disc EN-GJS-450-10 SS304, SS316, AL-Bronze UNC 95400

    4 Stem SS420 SS304, SS316, SS416, SS431

    5 O-Ring NBR EPDM

    6 Bushing Nylon 1010 PTFE

    7 Lever EN-GJS-450-10 Aluminum

    BS EN 593 Lugged Wafer Buttery Valve (D71XL4, D371XL4), PN10/16

    Design Standard: BS EN 593

    Connection Ends: BS EN 1092 PN10/PN16

    Top Flange Standard: ISO 5211 Stem drive by keys, parallel or diagonal square or at head

    Working Pressure: PN10/PN16

    Temperature Range: 0- 80

    Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550

    DN Dimensions(mm)

    Inch mm A B C D D1 V 2 NXM G L ISO 52112" 50 140.5 64.5 43 53.9 125 32 14 4XM16 9.53 267 F07

    2.5" 65 153 72 46 65.2 145 32 14 4XM16 9.53 267 F073" 80 157.5 86 46 79.7 160 32 14 8XM16 9.53 267 F074" 100 176 100 52 105 180 32 16 8XM16 11.14 267 F075" 125 191 112 56 130 210 32 16 8XM16 11.14 267 F076" 150 202.5 128 56 156 240 32 20 8XM20 12.7 267 F078" 200 243.5 162 60 206.7 295 45 26 12XM20 20.6 356 F1010" 250 273 194 68 253.3 355 45 26 12XM24 20.6 356 F1012" 300 311 223 78 301.9 410 45 28 12XM24 22.1 490 F1014" 350 340 267 78 333.9 470 45 31.6 16XM24 22.1 F12

    D71XL4

    D371XL4

    MATERIAL SPECIFICATION

    Note: For special material request other than standard specication, please indicate clearly on the inquiry or order list.

    Part No. Part Standard Specication Options

    1 Valve Body EN-GJS-450-10 2 Seat EPDM NBR3 Disc EN-GJS-450-10 SS304, SS316, AL-Bronze UNC 954004 Stem SS420 SS304, SS316, SS416, SS4315 O-Ring NBR EPDM6 Bushing Nylon 1010 PTFE7 Lever EN-GJS-450-10 Aluminum

    DN Dimensions(mm)

    Inch mm L1 H1 H2 H3A B C n-1

    D E K n-D2 ISO5211 F G LPN16

    2" 50 108 80 110 32 165 19 125 4-19 53.9 70 90 4-10 F07 14 9.53 2672.5" 65 112 80 131 32 185 19 145 4-19 65.2 70 90 4-10 F07 14 9.53 2673" 80 114 95 134 32 200 19 160 8-19 79.7 70 90 4-10 F07 14 9.53 2674" 100 127 113 150 32 220 19 180 8-19 105 70 90 4-10 F07 16 11.14 2675" 125 140 114 170 32 250 19 210 8-19 130 70 90 4-10 F07 16 11.14 2676" 150 140 139 180 32 285 19 240 8-23 156 70 90 4-10 F07 20 12.7 2678" 200 152 175 210 45 340 20 295 12-23 206.7 102 125 4-12 F10 26 20.6 35610" 250 165 203 245 45 405 22 355 12-28 253.3 102 125 4-12 F10 26 20.6 35612" 300 178 242 276 45 460 24.5 410 12-28 301.9 102 125 4-12 F10 28 22.1 49014" 350 190 250 328 45 520 24.5 470 16-28 333.5 125 150 4-14 F12 31.6 22.1 --16" 400 216 277 376 51 580 24.5 525 16-31 389.6 140 175 4-18 F14 33.15 27 --

    Inch mm L1 H1 H2 H3A B C n-1

    D E K n-D2 ISO5211 F G LPN10

    18" 450 222 295 407 51 615 25.5 565 20-28 440.5 140 175 4-18 F14 38 27 --20" 500 229 330 448 64 670 26.5 620 20-28 491.6 140 175 4-18 F14 41.15 27 --24" 600 267 420 518 70 780 30 725 20-31 592.5 165 210 4-22 F16 50.65 -- --28" 700 292 450 560 66 895 32.5 840 24-31 695 254 300 8-18 F25 63.5 -- --32" 800 318 501 620 66 1015 35 950 24-34 794.7 254 300 8-18 F25 63.5 -- --

    MATERIAL SPECIFICATION

    Note: For special material request other than standard specication, please indicate clearly on the inquiry or order list.

    D341X4

    BS EN 593 Flanged Buttery Valve (D41X4, D341X4), PN10/16

    Design Standard: BS EN 593

    Face to Face: BS EN 558 Series 13

    Connection Ends: BS EN 1092 PN10/PN16

    Top Flange standard: ISO 5211 Stem drive by keys, parallel or diagonal square or at head

    Working Pressure: PN10/PN16

    Temperature Range: 0- 80

    Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550

    D41X4

  • 20 21

    BS VALVES

    Part No. Part Standard Specication Options

    1 Valve Body EN-GJS-450-10 2 Disc EN-GJS-450-10+EPDM NBR3 O-Ring NBR EPDM4 Stem SS431 SS304, SS316, SS4165 O-Ring NBR EPDM6 Stem SS431 SS304, SS316, SS4167 Lever EN-GJS-450-10 Aluminum

    BS EN 593 Grooved Buttery Valve(D81X4, D381X4, XD381X4), PN10/16

    Design Standard: BS EN 593

    Connection Ends: Groove to ISO 6182

    Top Flange standard: ISO 5211 Stem drive by keys, parallel or diagonal square or at head

    Working Pressure: PN10/PN16

    Temperature Range: 0- 80

    Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550 or painting upon request

    Note: Valve must not be installed with disc in full open position. Disc must be partly closed so that no part is protruding beyond end of valve body.

    XD381X4D381X4

    D81X4

    MATERIAL SPECIFICATION

    Note: For special material request other than standard specication, please indicate clearly on the inquiry or order list.

    Buttery Valve Performance DataCv = Flow CoefcientFormulas for Cv Values: Cv=Q/(P)0.5Q = Flow Rate (gal/min)P = Pressure Drop Across Valve (1bf/in2)Kv=Cv/1.156

    Flow Rate Q (gal/min)

    DNInch 2'' 2.5'' 3'' 4'' 5'' 6'' 8'' 10'' 12''

    mm 50 65 80 100 125 150 200 250 300

    Pipe DiameterInch 2.06 2.50 3.06 4.06 5.04 6.06 8.06 9.90 11.81

    mm 52.40 63.50 77.80 103.00 128.00 154.00 204.80 251.35 299.95

    Flow Coefcient

    (Fully Open)

    Cv 284.55 417.87 512.16 897.67 1200.59 1737.86 3073.50 4140.73 5896.80

    Kv 246.15 361.48 443.04 776.53 1038.57 1503.34 2658.74 3581.95 5101.04

    DN Dimensions(mm)

    Inch mm L1 L2 L3 B C D E K n-1 H1 H2 H3 2 G ISO52112" 50 81 15.9 7.9 57.15 60.3 50.3 70 90 4-10 65 89 32 14 9.53 F07

    2.5" 65 97 15.9 7.9 69.09 73.0 60.8 70 90 4-10 71 102 32 14 9.53 F072.5" 65 97 15.9 7.9 72.26 76.1 60.8 70 90 4-10 71 102 32 14 9.53 F073" 80 97 15.9 7.9 84.94 88.9 76 70 90 4-10 81 109 32 14 9.53 F074" 100 116 15.9 9.5 110.08 114.3 98.5 70 90 4-10 95 128 32 16 11.14 F075" 125 148 15.9 9.5 135.48 139.7 122.4 70 90 4-10 111 141 32 16 11.14 F075" 125 148 15.9 9.5 137.03 141.3 122.4 70 90 4-10 111 141 32 16 11.14 F076" 150 148 15.9 9.5 160.90 165.1 148 70 90 4-10 133 153 32 20 12.7 F076" 150 148 15.9 9.5 163.96 168.3 148 70 90 4-10 133 153 32 20 12.7 F078" 200 133 19.1 11.1 214.40 219.1 199 102 125 4-12 164 184 45 26 20.6 F1010" 250 159 19.1 12.7 268.28 273.0 252 102 125 4-12 196 216 45 31.6 22.1 F1012" 300 165 19.1 12.7 318.29 323.9 300.5 102 125 4-12 226 254 45 33.1 27 F10

  • 22 23

    BS VALVES

    BS Standard Check Valve

    Part No. Part Standard Specication Options

    1 Valve Body EN-GJS-450-10

    2 Seat Ring Brass Hpb59-1 (Pressed Fit) AISI 304, AISI 316 Pressed Fit or Threaded3 Disc EN-GJS-450-10+EPDM4 Clapper Arm EN-GJS-450-105 Washer SS4206 Nut Carbon Steel Zinc Plated SS304, SS3167 Hinge Pin SS4208 Bonnet Gasket EPDM Graphite+Steel9 Bolt Carbon Steel Zinc Plated SS304, SS316

    10 Washer Carbon Steel Zinc Plated SS304, SS31611 Bonnet EN-GJS-450-1012 Plug Malleable Iron Galvanized

    BS EN 12334 Swing Check Valve (H44X, H44T), PN10/16

    Connection Ends: Flange to BS EN 1092-2:1997

    Working Pressure: PN10/PN16

    Temperature Range: Rubber Seal: 0- 80, Metal Seal: -10- 350

    Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550 or painting upon request

    DNPN

    Dimensions(mm)

    Inch mm O D D1 D2 b n-d f H

    2" 50 10/16 203 165 125 99 19 4-19 3 146

    2.5" 65 10/16 216 185 145 118 19 4-19 3 155

    3" 80 10/16 241 200 160 132 19 8-19 3 173

    4" 100 10/16 292 220 180 156 19 8-19 3 180

    5" 125 10/16 330 250 210 184 19 8-19 3 212

    6" 150 10/16 356 285 240 211 19 8-23 3 260

    8" 20010 495 340 295 266 20 8-23 3 290

    16 495 340 295 266 20 12-23 3 290

    10" 25010 622 405 350 319 22 12-23 3 339

    16 622 405 355 319 22 12-28 3 339

    12" 30010 698 460 400 370 24.5 12-23 4 376

    16 698 460 410 370 24.5 12-28 4 376

    H44X

    MATERIAL SPECIFICATION

    Note: For special material request other than standard specication, please indicate clearly on the inquiry or order list.

    Statement: Check valves serve to prevent the backflow of medium in the piping system for protection of important equipments, widely used in the eld of potable water, water supply and drainage, sewage disposal, irrigation, air conditioning, re protection as well as chemical and energy industry.

    Features: 1. Material: Ductile Iron EN-GJS-450-10Valve body, bonnet, disc are all produced in ductile iron material which provides guarantee for high strength and good corrosion resistance.2. Fusion bonded epoxy coatingFusion bonded epoxy coating in accordance with ANSI/AWWA C550 for both interior and exterior surface which provides reliable corrosion resistance.3. Small hydraulic friction loss with reasonable structure design

    Body & Bonnet: Ductile Iron

    Disc: D.I.+EPDM or D.I. + Bronze

    or Stainless Steel Sealing

    Bronze or Stainless Steel Seat

    Fusion Bonded Epoxy Coating

    H44XSwing Check Valve

    Page 23

    H84XGrooved Resilient Swing Check Valve

    Page 24

    H44JRubber Disc Swing Check Valve

    Page 25

    DH77XDouble Door Wafer Check Valve

    Page 27

    HC41XSilent Check Valve

    Page 26

  • 24 25

    BS VALVES

    Part No. Part Standard Specication Options

    1 Valve Body EN-GJS-450-102 Bolt Carbon Steel Zinc Plated SS304, SS3163 Washer Carbon Steel Zinc Plated SS304, SS3164 Disc Carbon Steel + EPDM Carbon Steel+NBR5 Bonnet EN-GJS-450-106 Bonnet Gasket EPDM7 Plug Malleable Iron Galvanized Bronze ASTM B584

    BS EN 12334 Rubber DiscSwing Check Valve (H44J), PN10/16

    Connection Ends: Flange to BS EN 1092-2:1997

    Working Pressure: PN10/PN16

    Temperature Range: 0- 80

    Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550

    DNPN

    Dimensions(mm)

    Inch mm L D D1 d C T n-L2" 50 10/16 203 165 125 99 19 3 4-19

    2.5" 65 10/16 216 185 145 118 19 3 4-193" 80 10/16 241 200 160 132 19 3 8-194" 100 10/16 292 220 180 156 19 3 8-196" 150 10/16 356 285 240 211 19 3 8-23

    8" 20010 495 340 295 266 20 3 8-2316 495 340 295 266 20 3 12-23

    10" 25010 622 405 350 319 22 3 12-2316 622 405 355 319 22 3 12-28

    12" 30010 698 460 405 370 24.5 4 12-2316 698 460 410 370 24.5 4 12-28

    Part No. Part Standard Specication Options

    1 Valve Body EN-GJS-450-102 Hinge Pin SS4203 Spring SS304 SS3164 Eye Bolt Carbon Steel Zinc Plated5 Disc EN-GJS-450-10 SS3046 Disc Sealing Ring EPDM NBR

    7 Seat Ring ASTM B62 C83600 (Pressed Fit) SS304, SS316 Pressed Fit or Threaded8 Plug Malleable Iron Galvanized Bronze ASTM B5849 Plug Malleable Iron Galvanized Bronze ASTM B58410 Plug Malleable Iron Galvanized Bronze ASTM B58411 Plug Malleable Iron Galvanized Bronze ASTM B58412 Bolt SS304 SS31613 Washer SS304 SS31614 Nut SS304 SS316

    Grooved Resilient Swing Check Valve (H84X), PN10/16

    DNPN

    Dimensions(mm)

    Inch mm L D1 D2 B C

    2" 50 16 171 57.15 60.3 7.93 15.88

    2.5" 65 16 184 69.09 73 7.93 15.88

    2.5" 65 16 184 72.26 76.1 7.93 15.88

    3" 80 16 197 84.94 88.9 7.93 15.88

    4" 100 16 210 110.08 114.3 9.53 15.88

    5" 125 16 248 135.48 139.7 9.53 15.88

    5" 125 16 248 137.03 141.3 9.53 15.88

    6" 150 16 324 160.90 165.1 9.53 15.88

    6" 150 16 324 163.96 168.3 9.53 15.88

    8" 200 16 371 214.40 219.1 11.13 19.05

    10" 250 16 457 268.28 273.0 12.70 19.05

    12" 300 16 535 318.29 323.9 12.70 19.05

    MATERIAL SPECIFICATION

    Note: For special material request other than standard specication, please indicate clearly on the inquiry or order list.

    MATERIAL SPECIFICATION

    Note: For special material request other than standard specication, please indicate clearly on the inquiry or order list.

    Connection Ends: Groove to ISO 6182

    Working Pressure: PN10/PN16

    Temperature Range: 0- 80

    Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550 or painting upon request

    H84XH44J

  • 26 27

    BS VALVES

    Part No. Part Standard Specication Options

    1 Valve Body EN-GJS-450-10

    2 Disc EN-GJS-450-10+EPDM SS304, SS316, AL-Bronze UNC 95400

    3 Stem SS420 SS304, SS316, SS416

    4 Spring SS304 SS316

    5 Rubber Seat EPDM NBR

    Double Door Wafer Check Valve (DH77X), PN10/16

    DNPN

    Dimensions(mm)

    Inch mm L D D1 D22" 50 10/16 54 107 64 46

    2.5" 65 10/16 54 127 78 603" 80 10/16 57 142 94 704" 100 10/16 64 162 117 845" 125 10/16 70 192 145 1156" 150 10/16 76 218 170 1348" 200 10/16 95 273 224 184

    10" 250 10/16 108 328 265 22012" 300 10/16 143 378 310 26014" 350 10/16 184 438 360 30216" 400 10/16 191 489 410 350

    Connection Ends: BS EN 1092 PN10/PN16, AS 2129 TABLE E, JIS B2212 10K, BS 10 TABLE D/E

    Working Pressure: PN10/PN16

    Temperature Range: 0- 80

    Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550

    Part No. Part Standard Specication Options

    1 Valve Body EN-GJS-450-102 Stem SS420 SS304, SS316, SS4313 Hinge Bushing Brass Hpb59-14 Spring SS304 SS3165 Nut SS304 SS3166 Disc EN-GJS-450-107 O-Ring EPDM NBR8 Hinge bushing Brass Hpb59-19 Seat EN-GJS-450-1010 O-Ring NBR EPDM11 Screw Carbon Steel Zinc Plated SS304, SS316

    Silent Check Valve (HC41X), PN10/16

    Connection Ends: Flange to BS EN 1092-2:1997

    Working Pressure: PN10/PN16

    Temperature Range: 0- 80

    Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550

    DN Dimensions(mm)

    Inch mm L D D1 D2 C T n-L2" 50 120 165 125 99 19 3 4-19

    2.5" 65 135 185 145 118 19 3 4-193" 80 155 200 160 132 19 3 8-194" 100 165 220 180 156 19 3 8-195" 125 190 250 210 184 19 3 8-196" 150 210 285 240 211 19 3 8-238" 200 260 340 295 266 20 3 12-23

    10" 250 285 405 355 319 22 3 12-2812" 300 315 460 410 370 24.5 4 12-28

    MATERIAL SPECIFICATION

    Note: For special material request other than standard specication, please indicate clearly on the inquiry or order list.

    MATERIAL SPECIFICATION

    Note: For special material request other than standard specication, please indicate clearly on the inquiry or order list.

    HC41X DH77X

  • 28 29

    BS VALVES

    MATERIAL SPECIFICATION

    Part No. Part Standard Specication Options

    1 Valve Body EN-GJS-450-10

    2 Screen SS304 (Perforated) SS304, SS316 (Perforated, Knitted, Double Screen)3 Gasket EPDM Graphite+Acanthopore Plate4 Bonnet EN-GJS-450-105 Plug Malleable Iron Galvanized Bronze ASTM B5846 Bolt Carbon Steel Zinc Plated SS304, SS3167 Flat Washer Carbon Steel Zinc Plated SS304, SS316

    STANDARD SCREEN

    Y-Type Strainer (V4), PN10/16, UL Listed

    Connection Ends: Flange to BS EN 1092-2:1997

    Working Pressure: PN10/PN16

    Temperature Range: 0- 80 rubber gasket, -10- 350 graphite gasket

    Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550

    DNSieve No.

    Hole Dia. Free Flow Area(%)

    Inch mm mm %

    2"~2.5" 50~65 25 4 483"~4" 80~100 19 5 59

    5" 125 14 6 636"~12" 150~300 13 6.3 64

    Statement: Installed before relief valves, atmospheric valves, hydraulic control valves as well as other equipments, strainers serve to lter out the impurities in the ow medium for protection of valves and equipments in the piping system.

    Ductile Iron Body & Bonnet

    Stainless Steel Screen

    Fusion Bonded Epoxy Coating

    Gasket: EPDM or Graphite + Acanthopore Plate

    BS Standard Y-Type Strainer

    Features: 1. Material: Ductile Iron EN-GJS-450-10Valve body and cover are produced in ductile iron material which provides guarantee for high strength and good corrosion resistance.2. Different Options of Screen Mesh SpecicationDifferent options of screen mesh specification available as per different service conditions. 3. Fusion Bonded Epoxy CoatingFusion bonded epoxy coating in accordance with ANSI/AWWA C550 for both interior and exterior surface which provides reliable corrosion resistance.

    Note: For special material request other than standard specication, please indicate clearly on the inquiry or order list.

    V4

    V4Y-Type Strainer

    Page 29

    V8Grooved Y-Type Strainer

    Page 30 DNPN

    Dimensions(mm)

    Inch mm L D D1 D2 b n-d f H1.5" 40 10/16 200 150 110 90 19 4-19 3 1402" 50 10/16 230 165 125 99 19 4-19 3 140

    2.5" 65 10/16 290 185 145 118 19 4-19 3 1753" 80 10/16 310 200 160 132 19 8-19 3 1984" 100 10/16 350 220 180 156 19 8-19 3 2295" 125 10/16 400 250 210 184 19 8-19 3 2876" 150 10/16 480 285 240 211 19 8-23 3 304

    8" 20010

    600 340 295 266 208-23

    3 370.516 12-23

    10" 25010

    730 405350

    319 2212-23

    3 46916 355 12-28

    12" 30010

    850 460400

    370 24.512-23

    4 54016 410 12-28

    14" 35010

    838 520460

    429 26.516-23

    4 62516 470 16-28

    16" 40010

    864 580515

    480 2816-28

    4 71516 525 16-31

  • 30 31

    BS VALVES

    Part No. Part Standard Specication Options

    1 Valve Body EN-GJS-450-102 Screen SS304 SS3163 Rigid Coupling EN-GJS-450-104 Cap EN-GJS-450-105 Plug Malleable Iron Galvanized Bronze ASTM B584

    STANDARD SCREEN

    Grooved End Y-Type Strainer (V8), PN10/16/25

    DNSieve No.

    Hole Dia. Free Flow Area(%)

    Inch mm mm %

    2"~2.5" 50~65 25 4 483"~4" 80~100 19 5 59

    5" 125 14 6 636"~12" 150~300 13 6.3 64

    Connection Ends: Groove to ISO 6182

    Working Pressure: PN10/PN16/PN25

    Temperature Range: 0- 80

    Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550 or painting upon request

    DN Dimensions(mm)

    Inch mm L OD d A B2" 50 247.5 60.3 57.15 15.88 7.92

    2.5" 65 273 73 69.09 15.88 7.922.5" 65 273.0 76.1 72.26 15.88 7.923" 80 298.5 88.9 84.94 15.88 7.924" 100 362.0 114.3 110.08 15.88 9.525" 125 419.0 139.7 135.48 15.88 9.525" 125 419 141.3 137.03 15.88 9.526" 150 470.0 165.1 160.90 15.88 9.526" 150 470.0 168.3 163.96 15.88 9.528" 200 609.5 219.1 214.40 19.05 11.13

    10" 250 686.0 273.0 268.28 19.05 12.7012" 300 762.0 323.9 318.29 19.05 12.70

    MATERIAL SPECIFICATION

    Note: For special material request other than standard specication, please indicate clearly on the inquiry or order list.

    Water Head Loss (psi)

    Flow Rate (gpm)DN50DN65

    DN80

    DN100

    DN125

    DN150

    DN200

    DN250

    DN300DN350

    DN400DN450DN500DN600

    Hydraulic Control Valves,PN10/16/25 Statement

    The hydraulic control valve was initially originated in Holand, Israel and Denmark, used for agricultural irrigation. Later the product was introduced into the United Sates, Canada and Asian countries. It was from the 1990s when the product first entered China, and ever since its entrance it gets rapidly developped and widely applied in different industrie aside from irrigation.

    The hydraulic control valve produced by Jinan Meide is new style that absorbed the essence of other well-known brands which makes it better in energy saving, consumption reducing and accurate adjusting achieving. The MECH brand hydraulic control valves have been widely used in China, Europe and South East Asian countries in pipe system of irrigation, water supplying, re protection and air conditioning which has medium of water under 80 or other medium with similar physical and chemical property as water.

    SpecicationsBasic Valve: Y-Type Direct-owConnection Ends: Flange to BS EN 1092-2:1997Temperature Range: 0- 80 (0 - 180)Working Pressure: PN10/PN16/PN25Testing Standard: API 598

    Flow Diagram of Basic Valve

    DN 50 65 80 100 125 150 200 250 300 350 400 450 500

    Kv 41 53 105 175 285 402 730 1160 1400 1770 3010 3225 3395

    DNPN

    Dimensions(mm)

    Inch mm L H D D1 d C T n-L2" 50 10/16 203 170 165 125 99 19 3 4-19

    2.5" 65 10/16 216 195 185 145 118 19 3 4-193" 80 10/16 241 215 200 160 132 19 3 8-194" 100 10/16 292 255 220 180 156 19 3 8-196" 150 10/16 356 360 285 240 211 19 3 8-23

    8" 20010 495

    450340 295 266 20 3 8-23

    16 495 340 295 266 20 3 12-23

    10" 25010 622

    550405 350 319 22 3 12-23

    16 622 405 355 319 22 3 12-28

    12" 30010 698

    645460 400 370 24.5 4 12-23

    16 698 460 410 370 24.5 4 12-28

    14" 35010 787

    700505 460 429 24.5 4 16-23

    16 787 520 470 429 26.5 4 16-28

    16" 40010 914

    790565 515 480 24.5 4 16-28

    16 914 580 525 480 28 4 16-31

    18" 45010 978

    850615 565 530 25.5 4 20-28

    16 978 640 580 548 30 4 20-31

    20" 500 10 1100 900 670 620 582 26.5 4 20-2816 1100 715 625 609 31.5 4 20-34

    Important notes:

    1.The products listed in this catalogue are intended to be assembled only in pipelines of same or lower pressure ratings and properly installed. In case of special request, please contact with factory for support and conrm.

    2.It can happen that the catalogue might not be updated while product design improved. In this case, design of the product should be as conrmed when order placed.

    3.Jinan Meide Casting Co., Ltd. reserves the right for construe of the information provided in this catalogue

    Up Gland (EN-GJS-450-10)

    Cap Plug (Brass H62)

    Up Bonnet (EN-GJS-450-10)

    Bottom Gland (EN-GJS-450-10)Bushing (Brass H62)

    Middle Bonnet (EN-GJS-450-10)

    Diaphragm (EPDM)

    Stem (SS304)

    Bolt (SS304)Spring ( Stainless Steel 4Cr13)

    Main Disc (EN-GJS-450-10)Main Gasket (EPDM)

    Gland of Main Disc (EN-GJS-450-10)Seat (SS304)

    Valve Body (EN-GJS-450-10)

  • 32 33

    BS VALVES

    Common Problems Proposed Solutions

    Pressurize in front of the valve but valve can't be opened when choose condition of normally open and no power.

    Check if needle valve or ball valve in front of the basic valve is opened. If not, please open it.

    The basic valve can't be closed when choose normally open and shut down the power.

    Check condition of wiring, make sure action in place and for the solenoid valve and sealing is good condition for the solenoid valve. Check if there's sundries blocked inside the basic valve. Wash the mini strainer before basic valve and make sure it's unblocked.

    Pressure in front and the valve can't close complete with leakage when choose condition of normally close and no power. Check if any damage or blocks on the sealing surface of basic valve.

    No water after valve, valve is not open when choose condition of normally close and electried.

    Check if solenoid valve is in good working condition. Check if needle valve or ball valve is open in front of the valve.

    1. StatementSK710X Electromagnetic Control Valve is a diaphragm type of hydraulic control valve driven by the hydraulic pressure within the piping system. This type of valve is widely applied in the eld of piping system optimization, pressure division, water reservoir (tank) backup, change of industrial valves, etc., with its closing and opening remotely controlled by electric signal.

    4. Typical installation illustration

    5. Common problems and proposed solutions

    SK710X Electromagnetic Control Valve

    2. Operational principleSK710X Electromagnetic Control Valve is controlled by solenoid valve and equipped with normally open (or normally closed) two positions two ways or two positions three ways solenoid pilot valve, needle valve, mini strainer and ball valve, etc.When the normally open solenoid valve is applied, the main valve in most cases will be in open position. When there is pressure coming from the ow direction, Pressure P1 enters the upper cavity room of the valve through the guide tube and then comes to the low pressure area through the normally open solenoid valve. In this way the upper cavity room is not able to form conned space and the disc of the main valve will be opened at the pressure of P1. When the normally open solenoid valve is closed, pressure P1 will be accumulated inside the upper cavity which will gradually push the membrane to close the disc and the valve.For normally closed solenoid valve, the main valve will be in most cases closed and operation principle same as stated above. The application of the solenoid valve depends on the working environment.In case the water inside the piping system are highly corrosive or with high deposits, user can choose also to control the valve with medium from outside. It's up to the option of the client, depending on different working conditions.

    3.Property and advantages Driven by pressure of pipe system, work automatically without any power-generating. It saves installation

    and repairing space. Controlled by solenoid valve, save energy and wiring costs, can be used for large range of pressure and

    voltage. Series of mode of execution can be changed to hand control, normally closed solenoid valve control or

    normally open solenoid valve control, etc. Dual cavity design, with functions of fully opening and fully closing. Slow shut causes no pressure

    uctuation, and the diaphragm with support is well protected. Channel with straight-ow, slight friction loss, no eddy ow and turbulent ow. Long pitch orientation design for stem move, stable and no gap resistance. Balanced automatically, big gap design on connection of disc and stem, disc is free on the vertical at

    against stem, it can balance the tolerance from machining and sealing surface. Good connection without leakage.

    Ductile iron castings with nodularity higher than 90%, foundry in house with advanced melting technology and strict quality control system, testing reports and testing bars can be supplied with order. Records and testing bars maintained for one year in the factory.

    Good corrosion resistance, with stainless steel, copper alloy, rubber made from DuPont and other rust-resisting material, fusion bonded epoxy coating both for interior and exterior surface of the basic valve. All the characteristics in accordance with ANSI/AWWA C550 and other international specications like WRAS, NSF61.

  • 34 35

    BS VALVES

    SK720X Pressure Reducing Valve

    1.StatementSK720X Pressure Reducing Valve is a diaphragm type of hydraulic control valve driven by the hydraulic pressure within the piping system. The function of the valve is to reduce the high pressure to the pre-set low pressure, and despite the uctuation of medium ow or pressure before the valve the pressure after the valve will always remain stable and maintain the set pressure range.

    2.Operational principleSK720X Pressure Reducing Valve is controlled by pressure reducing pilot valve and equipped with pressure reducing pilot valve, needle valve, mini strainer and ball valve, etc.Under normal conditions, water ow comes continuously from the inlet opening to the upper cavity room (2) of the basic valve through the needle valve (1); When the pressure before the pilot valve (3) is lower than its pre-set value, the pilot valve will remain at full open position and the upper cavity room of the basic valve is not able to get accumulating pressure. Under this condition, the disc of the basic valve will be open at the water pressure from the inlet opening to allow water ow. The pressure reducing pilot valve closes gradually when the pressure after pilot valve exceeds its pre-set value. Pressure gets accumulated within the upper cavity room and membrane drives the disc down to close the valve till the pressure after the pilot valve gradually reduces to its pre-set value. The pilot valve opens again when the pressure after the valve becomes lower than the pre-set value, and the basic valve will then open with the release of the accumulated pressure in the upper cavity room. The throttle orice (5) that connects the lower cavity to the outlet serves to keep the reaction of the valve gentle and stable. The ball valve (4) controls the outlet water ow rate from the upper cavity room and thus to stabilize the action of the basic valve. The ball valve can be adjusted with different working conditions. In case of emergency, the ball valve can also be closed manually for cutting off of the basic valve.

    3.Property and advantages Driven by pressure of pipe system, work automatically with energy of pipe system to achieve energy

    conservation and environment protection. Controlled by the pilot valve, lower energy consumption, achieve accurate pressure reducing results, have

    function of stabilizing pressure after the valve. Dual cavity design, with functions of fully opening and fully closing. Slow shut causes no pressure

    uctuation, and the diaphragm with support is well protected. Have internal orice, connect bottom cavity and outlet of the basic valve, make sure stability of reaction to

    keep stability of pressure after the valve, avoid any vibration and noise. Channel with straight-ow, slight friction loss, no eddy ow and turbulent ow, cut down the damage of

    cavitation. Long pitch orientation design for stem move, stable and no gap resistance. Balanced automatically, big gap design on connection of disc and stem, disc is free on the vertical at

    against stem, it can balance the tolerance from machining and sealing surface. Good connection without leakage. Achieve functions of both reducing dynamic pressure and reducing static pressure.

    Ductile iron castings with nodularity higher than 90%, foundry in house with advanced melting technology and strict quality control system, testing reports and testing bars can be supplied with order. Records and testing bars maintained for one year in the factory.

    Good corrosion resistance, with stainless steel, copper alloy, rubber made from DuPont and other rust-resisting material, fusion bonded epoxy coating both for interior and exterior surface of the basic valve. All the characteristics in accordance with ANSI/AWWA C550 and other international specications like WRAS, NSF61.

    4.Typical installation illustration

    5.Basic Parameters

    Pressure Symbol UnitNominal Pressure

    PN10 PN16 PN25

    Max. Inlet pressure P1max

    MPa

    1.0 1.6 2.5

    Min. Inlet pressure P1min P2max + 0.2

    Max. Outlet pressure P2max 0.8 1.0 1.6

    Min. Outlet pressure P2min 0.05Characteristics of ow

    deviation P2Q 10%Pressure characteristic

    deviation P2p 5%

    Min. pressure deviation Pmin 0.2

    6.Notes for installation and debuggingAll the Pressure Reducing Valves have been finished initial debugging tests before delivery. Further dubugging test is also suggested during using according to different working conditions. After the pipe system becomes stable, please loose the adjusting screw on the top of pilot valve to the top-most position.Tighten adjusting screw of pilot valve in clockwise slowly. When outlet pressure increase to the set pressure please fasten the locknut under the adjusting screw. If go beyond the set pressure during adjusting, please repeat the above steps. Remember, pressure can be only adjusting from low level to high level and pay attention to make the adjusting slowly.

    Common Problems Proposed Solutions

    Outlet pressure is similar with inlet pressure, no pressure reduction.

    a.Check if any sundries on the sealing surface of basic valve or pilot valve. b.Check if any damage on the sealing surface of basic valve or pilot valve.c.Check if any damage or fatigue on spring of basic valve or pilot valve. d.Check if any damage or fatigue on diaphragm of basic valve or pilot valve.e.Check if any corrosion or blocking on stem of basic valve or pilot valve.

    Strong vibration and noise. a.Close the needle valve before the basic valve and open 1/4 turns slowly. Open the big hex screw on the top of bonnet, release air. Adjust the needle valve on inlet conduit slowly until no vibration. b.Calculate the ow again and collect proper size of valve or add throttling set.

    Pressure after the valve is not stable. a.Check if pressure is uctuating strongly at inlet. Try to keep it within small range. b.Check if required ow is too different than actual ow, recalculate ow and choose new valve with proper size.

    7.Common problems and proposed solutions

  • 36 37

    BS VALVES

    SK730X Pressure Relief & Sustaining Valve

    1.StatementSK730X Pressure Relief & Sustaining Valve is a diaphragm type of hydraulic control valve driven by the hydraulic pressure within the piping system. One prominent feature of the valve is, it can serve as pressure relief valve and sustaining valve at the same time. As pressure relief valve, it releases the high pressure before the valve out of the piping system for protection of the pipes and the equipments when the pressure exceeds its pre-set value; As pressure sustaining valve, it maintains the water pressure above certain set value for guarantee of water supply to upstream area 2.Operational principleSK730X Pressure Relief & Sustaining Valve is controlled by pressure relief/sustaining pilot valve and equipped with pressure relief/sustaining pilot valve, needle valve, mini strainer and ball valve, etc.As Pressure relief valve, the valve is connected with branch pipe and directed to lower pressure area or drainage ditch. In normal working conditions, water ow enters the upper cavity room (2) through needle valve (1). When the pressure before the pilot valve (3) is lower than its pre-set value A, the pilot valve will remain closed and the water that enters the upper cavity room drives the membrane down and closes the disc and the basic valve. The pilot valve opens when the pressure before the valve exceeds its pre-set value and the pressure accumulated in the upper cavity room gets released. Under the pressure from the inlet opening, the disc of the basic valve opens. In this way the pressure within the piping system will be maintained under the pre-set value A. As pressure sustaining valve, the valve is connected in series with the main pipe and serves to maintain the pressure before valve above the set value B. Under normal conditions, water ow comes continuously from the inlet opening to the upper cavity room (2) of the basic valve through the needle valve (1); When the pressure before the pilot valve (3) is lower than its pre-set value, the pilot valve will remain closed and the water that enters the upper cavity room drives the membrane down and closes the disc and the basic valve for accumulation of pressure till equals to the set value B. The pilot valve opens when the pressure before the valve exceeds its pre-set value and the pressure accumulated in the upper cavity room gets released. Under the pressure from the inlet opening, the disc of the basic valve opens to allow water ow. In this way the pressure within the piping system will be maintained under the pre-set value B.

    3.Property and advantages Driven by pressure of pipe system, work automatically with energy of pipe system to achieve energy

    conservation and environment protection.

    Controlled by pilot valve, lower energy consumption, achieve accurate pressure relief and pressure holding results, reliable and safe.

    Dual cavity design, with functions of fully opening and fully closing. Slow shut causes no pressure uctuation, and the diaphragm with support is well protected.

    Have internal orice, connect bottom cavity and outlet of the basic valve, make sure stability of reaction to keep stability of pressure after the valve, avoid any vibration and noise.

    Channel with straight-ow, slight friction loss, no eddy ow and turbulent ow, cut down the damage of cavitation.

    Long pitch orientation design for stem move, stable and no gap resistance. Balanced automatically, big gap design on connection of disc and stem, disc is free on the vertical at

    against stem, it can balance the tolerance from machining and sealing surface. Good connection without leakage.

    Ductile iron castings with nodularity higher than 90%, foundry in house with advanced melting technology and strict quality control system, testing reports and testing bars can be supplied with order. Records and testing bars maintained for one year in the factory.

    Good corrosion resistance, with stainless steel, copper alloy, rubber made from DuPont and other rust-resisting material, fusion bonded epoxy coating both for interior and exterior surface of the basic valve. All the characteristics in accordance with ANSI/AWWA C550 and other international specications like WRAS, NSF61.

    4.Typical installation illustration

    7.Common problems and proposed solutions

    5.Basic Parameters

    Pressure Symbol UnitNorminal Pressure

    PN10 PN16 PN25

    Set Pressure Ps MPa 0.83 1.33 1.7

    Set PressureDifference

    Ps0.5: 0.014 MPa;Ps0.5: 3%Ps

    Open/ClosePressureDifference

    Pb Ps0.3: 0.06MPa;Ps0.3: 20%Ps

    Dischargepressure Pd 1.2Ps

    Common Problems Proposed Solutions

    The pressure of pipe system is lower than set-pressure, the valve dose not close.a.Check if any sundries on the sealing surface of basic valve or pilot valve. b.Check if any damage on the sealing surface of basic valve or pilot valve.c.Check if any damage or fatigue on spring of basic valve or pilot valve. d.Check if any damage or fatigue on diaphragm of basic valve or pilot valve.

    The pressure of pipe system is higher than set-pressure, the valve dose not open. a.Check if ball valve (4) is closed, if yes, please open it.b.Check if any blocks in basic valve or on stem of pilot valve, if yes, please remove the block or change new stem.c.Check if lock nut and adjust screw were adjusted wrongly, please try to repeat all the actions.

    For Pressure Relief For Pressure Sustaining

    6.Notes for installation and debuggingAll the Pressure Relief & Sustaining Valves have been nished initial debugging tests before delivery and the set-pressure is 0.6MPa. Further debugging test is also suggested during using according to different working conditions.After the pipe system becomes stable, please loose the lock nut under adjusting screw, open the ball valve or needle valve (1) slightly, when pressurize, adjust the adjust screw on pressure relief pilot valve and fasten the lock nut when it achieves pressure required. Pay attention that when adjust pressure relief pilot valve, clockwise is for increasing pressure and anti-clockwise is for reducing pressure.

  • 38 39

    BS VALVES

    SK750X Remote Float Control Valve

    1.StatementSK750X Remote Float Control Valve is a diaphragm type of hydraulic control valve driven by the hydraulic pressure within the piping system, designed with adjustable parallel oat. The valve is capable to maintain the water surface at set position despite the uctuation of ow rate and widely applied where there is water reservoir or water box for injection of water.

    2.Operational principleSK750X Remote Float Control Valve is controlled by angle valve, oat and ball lever, and equipped with needle valve, mini strainer and ball valve, etc.Under normal conditions, water ow comes continuously from the inlet opening to the upper cavity room (2) of the basic valve through the needle valve (1); When the oat is not reaching the set position, the angle valve 4 remains open. The water that enters the upper cavity room of the basic valve discharges into the water tank and no accumulation within. Under this condition, the disc of the basic valve remains open at the water pressure from the inlet opening to allow water supply to the water tank. With the raising of the water surface, the oat (6) gradually raises and closes the angle valve (4). Pressure gets accumulated within the upper cavity room and drives the membrane down to close disc and the basic valve gradually. When the water surface reaches the set position, the angle valve close completely and so with the basic valve and the water supply stops. When water position declines, the pressure within the upper cavity room gets released through the angle valve and the basic valve opens to continue with water supply.Needle valve (1) serves to control the closing speed of the valve to prevent formation of water hammer; In case the oat is not working, ball valve (3) can close the basic valve for emergency cut-off.

    6.Common problems and proposed solutions

    5.Technical Parameter

    4.Typical installation illustration

    Accuracy of Surface Control: 25mm

    3.Property and advantages Driven by pressure of pipe system, work automatically with energy of pipe system to achieve energy

    conservation and environment protection. Controlled by angle valve and oat, lower energy consumption, achieve accurate level limit, slowly shut

    and avoid close valve water hammer. Separate angle control, including separate angle valve, ball lever and oat, can be installed separately

    with basic valve, suitable for limited installation and repairing space, avoid inuence to level measuring by the wave beside inlet water.

    Dual cavity design, with functions of fully opening and fully closing. Slow shut causes no pressure uctuation, and the diaphragm with support is well protected.

    Have internal orice, connect bottom cavity and outlet of the basic valve, make sure stability of reaction to keep stability of pressure after the valve, avoid any vibration and noise.

    Channel with straight-ow, slight friction loss, no eddy ow and turbulent ow, cut down the damage of cavitation.

    Long pitch orientation design for stem move, stable and no gap resistance. Balanced automatically, big gap design on connection of disc and stem, disc is free on the vertical at

    against stem, it can balance the tolerance from machining and sealing surface. Good connection without leakage. Achieve functions of both reducing dynamic pressure and reducing static pressure.

    Ductile iron castings with nodularity higher than 90%, foundry in house with advanced melting technology and strict quality control system, testing reports and testing bars can be supplied with order. Records and testing bars maintained for one year in the factory.

    Good corrosion resistance, with stainless steel, copper alloy, rubber made from DuPont and other rust-resisting material, fusion bonded epoxy coating both for interior and exterior surface of the basic valve. All the characteristics in accordance with ANSI/AWWA C550 and other international specications like WRAS, NSF61.

    Common Problems Proposed Solutions

    Basic valve does not close when water meets specified level and continue to supply water.

    a.Check if any sundries on the sealing surface of basic valve or pilot valve. b.Check if any damage on the sealing surface of basic valve or pilot valve.c.Check if block on lever of controlling angle valve.d.Check if ball lever has been corrosive and oat missing. e.Check if any damage for diaphragm.During the checking, please close ball valve (3), if the basic valve was closed, please just disregard method of a, b and e and only check sealing surface of angle valve and ball lever. If the basic valve does not close when close ball valve (3), please cut off the water supply and check sealing surface of basic valve, diaphragm and stem. If any damaged parts, please change new one.

    Level adjusting is not accurate and oat jumps strongly.

    a.Check if the oat was installed close to water outlet. If yes, please move it to far away from the water outlet. Or you can use barrel to avoid the affection of the wave. b.Check the location of oat and make sure the top-most position which oat can catch is the set-level of the water box.

    Reasonable suggestion To make sure water won't exceed set-level double insurances is recommended. That's to assemble two position two-way solenoid valve before the controlling angle valve to make sure that the valve can be closed in case of emergency.

  • 40 41

    BS VALVES

    4.Typical installation illustration

    6.Common problems and proposed solutions

    5.Technical Parameter

    Pressure Symbol UnitNorminal Pressure

    PN10 PN16 PN25

    Min Closing Pressure Pg MPa 0.05

    Slow-shut Time t s 260

    Note: Slow-shut time can be adjusted as per request

    SK760X Slow Shut Control Valve (Pump Control Valve)

    1.StatementSK760X Slow Shut Control Valve (Pump Control Valve) is a diaphragm type of hydraulic control valve driven by the hydraulic pressure within the piping system, widely applied in the pump outlet for prevention of medium back-ow, pressure uctuation and water hammer formation. Under normal working conditions, pressure before the valve is higher than pressure after, and the valve remains fully open. When pressure after valve exceeds pressure before valve, the valve is capable to be closed rapidly to prevent backow of water and protect the pump and piping system. The design of the valve incorporates the function of slow-opening, quick closing, slow closing and water hammer absorption, no large pressure uctuation within the system.

    2.Operational principleSK760X Slow Shut Control Valve (Pump Control Valve) is composed of needle valve (or ball valve), mini strainer and ball valve, etc.Before the pump starts, there is no pressure before the valve, and disc (5) is closed under the pressure from the spring. With the start of the pump, the pressure before the valve increases gradually. At the same time, the pressure water enters the lower cavity room (2) through the needle valve (1) (or ball valve). The two combined force opens the disc of the basic valve rapidly to allow water supply. When the pump stops (as planned or out of accident), pressure before the valve suddenly declines. Pressure after valve exceeds that before the valve. As a result, the higher pressure ows back to the upper cavity room through the needle valve (4) (or ball valve) and gets accumulated to drive the membrane down to close the valve disc (5). The pressure within the lower cavity room (2) discharges to the lower pressure area before the basic valve through needle valve (1) (or ball valve) , which slows down the closing process to prevent formation of water hammer. The opening and closing speed of the valve can be controlled by adjustment of the needle valve (1) & (4) (or ball valve). The valve is designed with dual disc, especially good for working in complicated piping system and working conditions where there is tremendous pressure and water back-ow.

    3.Property and advantages Driven by pressure of pipe system, work automatically with energy of pipe system to achieve energy

    conservation and environment protection. Dual cavity design, with functions of fully opening and fully closing. Slow shut causes no pressure

    uctuation, and the diaphragm with support is well protected. Stable when open and close, the speed of opening and closing can be adjusted according to working

    conditions to avoid pressure uctuation and water hammer. It can achieve real silence. Dual disc, customer can choose design of main disc + second disc. Main disc will fall freely with its weight

    when pump stop working, then 90% of inlet of basic valve will be will closed, the water will not cause pump reversing. The second disc will close the 10% left slowly by the pressure of controlling cavity then huge energy of water hammer will be eliminated.

    Channel with straight-ow, slight friction loss, no eddy ow and turbulent ow, cut down the damage of cavitation.

    Long pitch orientation design for stem move, stable and no gap resistance. Balanced automatically, big gap design on connection of disc and stem, disc is free on the vertical at

    against stem, it can balance the tolerance from machining and sealing surface. Good connection without leakage. Achieve functions of both reducing dynamic pressure and reducing static pressure.

    Ductile iron castings with nodularity higher than 90%, foundry in house with advanced melting technology and strict quality control system, testing reports and testing bars can be supplied with order. Records and testing bars maintained for one year in the factory.

    Good corrosion resistance, with stainless steel, copper alloy, rubber made from DuPont and other rust-resisting material, fusion bonded epoxy coating both for interior and exterior surface of the basic valve. All the characteristics in accordance with ANSI/AWWA C550 and other international specications like WRAS, NSF61.

    Common Problems Proposed Solutions

    Strong vibration and noise when start-up the pump.

    a.Check if there's gas in the upper cavity room. Loose the hex brass nut on the top of bonnet to discharge gas. b.Adjust the needle valve or ball valve (1) at inlet to proper opening speed.c.Recalculate the ow and choose new valve with proper size or add throttling set.

    Strong vibration and noise when stop the pump.

    a.Adjust needle valve or ball valve (4) to proper closing speed.b.Consider to choose design of dual discs.

    Valve does not work and cause pump's reversing.

    a.Check if there's sundries on the sealing surface of main disc or second disc.b.Check if damage on sealing surface of main disc or second disc.c.Check if stem corroded or blocked. d.Check if damage on diaphragm. If any damaged parts found, please change new one.

  • 42 43

    BS VALVES

    SK780X Pressure Differential By-pass Balancing Valve

    1.StatementSK780X Pressure Differential By-pass Balancing Valve is a diaphragm type of hydraulic control valve driven by the hydraulic pressure within the piping system, widely applied in HVAC system for guarantee of ow stability in the air conditioning, refrigeration and heating system and pump working. The valve prevents the effect on the other pipe branches when there is uctuation on one branch by balancing of pressure in the radiant and distribution water manifold, thus to protect the efcient and safe working of the refrigeration set or heating set.

    2.Operational principleSK780X Pressure Differential By-pass Balancing Valve is composed of pressure balancing pilot valve, needle valve (or ball valve), mini strainer and ball valve, etc.SK780X Pressure Differential By-pass Balancing Valve is installed between radiant and distribution water manifold (water supply and water return). Water ow enters continuously from water supply duct to the valve inlet and then to the upper cavity room (2) through needle valve (1) (or ball valve). Pilot valve (3) is connected to the water supply duct and return duct by guide tube (4) and (5) to sensing of the pressure difference and adjustment of the opening position of the pilot valve accordingly. When the pressure difference is large, pilot valve opens broadly, the pressure inside upper cavity room (2) declines and the basic valve opens broadly. As result the water ow between the supply and return duct increase and the entire system gets balanced. When the pressure difference is small, pilot valve (3) turns to close at the pressure of the spring, the pressure inside upper cavity room (2) increase and the basic valve turns to close. As result the water ow between the supply and return duct decreases and the entire system also gets balanced.

    3.Property and advantages Driven by pressure of pipe system, work automatically with energy of pipe system to achieve energy

    conservation and environment protection. Dual cavity design, with functions of fully opening and fully closing. Slow shut causes no pressure

    uctuation, and the diaphragm with support is well protected. Antenna type of conduit, See No.4 and 5 conduit, connect with water knockout drum and water collector

    (supplying pipe and return pipe), can achieve accurate and reliable adjusting. Have internal orice, connect bottom cavity and outlet of the basic valve, make sure stability of reaction to

    keep stability of pressure after the valve, avoid any vibration and noise. Channel with straight-ow, slight friction loss, no eddy ow and turbulent ow, cut down the damage of

    cavitation. Long pitch orientation design for stem move, stable and no gap resistance. Balanced automatically, big gap design on connection of disc and stem, disc is free on the vertical at

    against stem, it can balance the tolerance from machining and sealing surface. Good connection without leakage. Achieve functions of both reducing dynamic pressure and reducing static pressure.

    Ductile iron castings with nodularity higher than 90%, foundry in house with advanced melting technology and strict quality control system, testing reports and testing bars can be supplied with order. Records and testing bars maintained for one year in the factory.

    Good corrosion resistance, with stainless steel, copper alloy, rubber made from DuPont and other rust-resisting material, fusion bonded epoxy coating both for interior and exterior surface of the basic valve. All the characteristics in accordance with ANSI/AWWA C550 and other international specications like WRAS, NSF61.

    4.Typical installation illustration

    6.Common problems and proposed solutions

    Common Problems Proposed Solutions

    Pressure difference is smaller than set-value and does not reach the set-difference.

    a.Check if any sundries on the sealing surface of basic valve or pilot valve. b.Check if any damage on the sealing surface of basic valve or pilot valve.c.Check if needle valve (ball valve) (1) was closed or almost closed. If yes, please open it.

    Pressure difference is bigger than set-value and does not reach the set-difference.

    a.Check if ball valve (6) at outlet was closed. If yes, please open it.b.Check if there's any block for pilot valve.

    5.Notes for installation and debuggingThe valve has been finished initial debugging tests before delivery. Further debugging test is also suggested during using according to different set-conditions.Over review pressure meter of water knockout drum and water collector, adjust pilot valve (3) according to set-difference of pressure. Clockwise is for increasing the pressure difference and anti-clockwise is for reducing pressure difference when set adjusting screw on the top of pilot valve. When adjusting is done, fasten the lock nut. Then you'll got set-difference for the pressure no matter how the pressure of pipe system changes. Adjust needle valve (ball valve) can achieve different movement speed for the basic valve. Normally, it has been adjusted well before delivery. No further adjusting suggested if no special notice.

  • 44 45

    BS VALVES

    SK790X Deluge Alarm Valve

    1.StatementSK790X Deluge Alarm Valve is a diaphragm type of hydraulic control valve driven by the hydraulic pressure within the piping system, functioning as ow control and alarming device in the sprinkler and pre-action system, i.e. to start the sprinkler system for quenching of the re and send out re alarm through the re bell when there is re detected.

    2.Operational principleSK790X Deluge Alarm Valve is equipped with solenoid, anti-reset controller, mini strainer, ball valve and pressure gauge, etc.. For deluge valve there is set condition and work condition. When the valve is under set condition, ball valve (3) is open, ball valve (7), solenoid (8) and remote ball valve (9) are closed, the anti-reset controller is connected, and pressure gauge (1) and pressure gauge (6) shows the same value. When ball valve (11) is open, pressure gauge (10) shows 0. When ball valve (12) and (14) are open, (13) & (15) closed, there is no hydraulic pressure for pressure switch (17) , and alarm (18) does not work. Under set condition, you can operate as following if you want to test the pressure switch alarm device (17) and water motor alarm (18): close ball valve (14) and open (15), and then close (15) and open (14) after testing.In case there is fire detected, the following 3 methods will set the deluge valve into work condition immediately, A: Opening solenoid valve (8) B: Opening ball valve (7) C: Opening remote ball valve (9). Any of the above 3 methods can get the pressure within the control room of the basic valve released rapidly to open the valve and set it into working condition. At this time the sealing ball of anti-reset controller makes controller in a shutdown state, water will pass through the main valve, ball valve (12), (4), pressure switch (17), re bell (18), the pressure switch bell sends out signal alarms. After re ghting, close ball valve (7), solenoid valve (8), remote valve (9), press the anti-reset controller handle till the pressure gauge (6) and pressure gauge (1) shows the same value. The deluge alarm valves returns to set condition.Ball valve (2), (5) & (11) are normally open unless need to change the pressure gauge.

    3.Property and advantages Driven by pressure of pipe system, work automatically with energy of pipe system to achieve energy

    conservation and environment protection. Dual cavity design, with functions of fully opening and fully closing. Slow shut causes no pressure

    uctuation, and the diaphragm with support is well protected. Triple insurance, there're three opening types used for different situation of ring. Anyone can make the

    valve into working condition. Anti-reset controller, hydraulic pressure type, compact design, tight sealing, operating by hand to make

    sure all the parts including basic valve, ball valves and conduits are all in good condition after out-re. Channel with straight-ow, slight friction loss, no eddy ow and turbulent ow, cut down the damage of

    cavitation. Long pitch orientation design for stem move, stable and no gap resistance. Balanced automatically, big gap design on connection of disc and stem, disc is free on the vertical at

    against stem, it can balance the tolerance from machining and sealing surface. Good connection without leakage. Achieve functions of both reducing dynamic pressure and reducing static pressure.

    Ductile iron castings with nodularity higher than 90%, foundry in house with advanced melting technology and strict quality control system, testing reports and testing bars can be supplied with order. Records and testing bars maintained for one year in the factory.

    Good corrosion resistance, with stainless steel, copper alloy, rubber made from DuPont and other rust-resisting material, fusion bonded epoxy coating both for interior and exterior surface of the basic valve. All the characteristics in accordance with ANSI/AWWA C550 and other international specications like WRAS, NSF61.

    6.Common problems and proposed solutions

    5.Notes for installation and debuggingPlease check if pressure switch and alarm bell are in good condition before installation. Make sure water can not leak to system from water supplying system or there's equipment to discharge the leaked water. Please adjust all the ball valves to make sure the basic valve be in set condition.Make sure anti-reset controller is in good condition and seal well before installation. If there's water with pressure in front of the valve, please closed ball valve (7), (9) and electromagnetic valve when it's in empty state behind the basic valve, press the anti-reset controller, when up cavity of basic valve is full of water please check if there's any leakage behind the valve. If no leakage, it said anti-reset controller is in good condition.

    Common Problems Proposed Solutions

    Press anti-reset controller after fire-out, there's still water coming out behind the valve.

    a.Check if any sundries or damage on the sealing surface of basic valve or anti-reset controller.b.Check if any damage on diaphragm. c.Check if controlling valve (7), (8) and (9) were closed completely. Close them or replace with new ones.

    When open controlling valve (7), (8) and (9) no water comes out from the basic valve.

    a.Check if controlling valve (7), (8) and (9) were opened. Close them or replace with new ones.b.Check if there's block on stem of basic valve, repair it.

    4.Typical installation illustration

  • 46 47

    BS VALVES

    Roll Groove Dimensions

    Nominal Size

    mm/in

    Pipe ODGasket seat

    A0.76/0.03

    mm/in

    Groove Width B0.76/0.03

    mm/in

    Groove Dia CGroove Depth

    D(ref)mm/in

    MaxAllow Flare Dia Fmm/in

    Min.Allow wall

    thickness Tmm/in

    Basicmm/in

    Tolerencemm/in

    Basicmm/in

    Tolerencemm/in

    251

    33.71.327

    +0.41+0.016

    -0.68-0.026

    15.880.625

    7.140.281

    30.231.190

    -0.38-0.015

    1.600.063

    34.51.358

    1.80.071

    321

    42.41.669

    +0.50+0.020

    -0.60-0.023

    15.880.625

    7.140.281

    38.991.535

    -0.38-0.015

    1.600.063

    43.31.705

    1.80.071

    401

    48.31.900

    +0.44+0.017

    -0.52-0.020

    15.880.625

    7.140.281

    45.091.779

    -0.38-0.015

    1.600.063

    49.41.945

    1.80.071

    502

    60.32.375

    +0.61+0.024

    -0.61-0.024

    15.880.625

    8.740.344

    57.152.250

    -0.38-0.015

    1.600.063

    62.22.449

    1.80.071

    652

    73.02.875

    +0.74+0.029

    -0.74-0.029

    15.880.625

    8.740.344

    69.092.720

    -0.46-0.018

    1.980.078

    75.22.961

    2.30.091

    652

    76.13.000

    +0.76+0.030

    -0.76-0.030

    15.880.625

    8.740.344

    72.262.845

    -0.46-0.018

    1.990.078

    77.73.059

    2.30.091

    803

    88.93.500

    +0.89+0.035

    -0.79-0.031

    15.880.625

    8.740.344

    84.943.344

    -0.46-0.018

    1.980.078

    90.63.567

    2.30.091

    1004

    108.04.250

    +1.07+0.042

    -0.79-0.031

    15.880.625

    8.740.344

    103.734.084

    -0.51-0.020

    2.110.083

    109.74.319

    2.30.091

    1004

    114.34.500

    +1.14+0.045

    -0.79-0.031

    15.880.625

    8.740.344

    110.084.334

    -0.51-0.020

    2.110.083

    116.24.575

    2.30.091

    1255

    133.05.250

    +1.32+0.052

    -0.79-0.031

    15.880.625

    8.740.344

    129.135.084

    -0.51-0.020

    2.110.083

    134.95.311

    2.90.114

    1255

    139.75.500

    +1.40+0.055

    -0.79-0.031

    15.880.625

    8.740.344

    135.485.334

    -0.51-0.020

    2.110.083

    141.75.579

    2.90.114

    1255

    141.35.563

    +1.42+0.056

    -0.79-0.031

    15.880.625

    8.740.344

    137.035.395

    -0.56-0.022

    2.130.084

    143.55.650

    2.90.114

    1506

    159.06.250

    +1.60+0.063

    -0.79-0.031

    15.880.625

    8.740.344

    154.506.083

    -0.56-0.022

    2.160.085

    161.06.339

    2.90.114

    1506

    165.16.500

    +1.60+0.063

    -0.79-0.031

    15.880.625

    8.740.344

    160.86.330

    -0.56-0.022

    2.160.085

    167.16.579

    2.90.114

    1506

    168.36.625

    +1.60+0.063

    -0.79-0.031

    15.880.625

    8.740.344

    163.966.455

    -0.56-0.022

    2.160.085

    170.76.720

    2.90.114

    200A8

    216.38.516

    +1.60+0.063

    -0.79-0.031

    19.050.750

    11.910.469

    211.608.331

    -0.64-0.025

    2.350.093

    219.88.653

    2.90.114

    2008

    219.18.625

    +1.60+0.063

    -0.79-0.031

    19.050.750

    11.910.469

    214.408.441

    -0.64-0.025

    2.340.092

    221.58.720

    2.90.114

    250A10

    267.410.528

    +1.60+0.063

    -0.79-0.031

    19.050.750

    11.910.469

    262.6010.339

    -0.69-0.027

    2.400.095

    270.910.665

    3.60.142

    25010

    273.010.750

    +1.60+0.063

    -0.79-0.031

    19.050.750

    11.910.469

    268.2810.562

    -0.69-0.027

    2.390.094

    275.410.842

    3.60.142

    300A12

    318.512.539

    +1.60+0.063

    -0.79-0.031

    19.050.750

    11.910.469

    312.9012.319

    -0.76-0.030

    2.770.109

    322.012.677

    4.00.158

    30012

    323.912.750

    +1.60+0.063

    -0.79-0.031

    19.050.750

    11.910.469

    318.2912.531

    -0.76-0.030

    2.770.109

    326.212.842

    4.00.158

    35014

    377.014.842

    +1.60+0.063

    -0.79-0.031

    23.830.938

    11.910.469

    371.4414.623

    -0.76-0.030

    2.770.109

    379.514.941

    4.50.177

    40016

    426.016.772

    +1.60+0.063

    -0.79-0.031

    23.830.938

    11.910.469

    420.4616.553

    -0.76-0.030

    2.770.109

    428.516.870

    4.50.177

    50020

    529.020.827

    +1.60+0.063

    -0.79-0.031

    25.401.000

    11.910.469

    523.4620.608

    -0.76-0.030

    2.770.109

    533.020.984

    5.00.197

    Roll Grooving Machine

    Ordering Guide of Hydraulic Control ValvePiping system (two words) Size in mm (three digitals) Main property(three digitals) Other property(two digitals) Material of basic valve (one letter) Material of pilot valve (one letter) Pressure in bars (two digitals)

    050065080...700

    Ductile Iron QCarbon Steel CStainless Steel P

    Al-bronze TStainless steel P

    101625

    Basic valve (Dual-chamber diaphragm) SK700XBasic valve (Single-chamber diaphragm) SK400XBasic valve (Piston type) SK800XElectromagnetic control valve SK710XPressure reducing valve SK720XPressure relief & sustaining valve SK730XRemote oat control valve SK750XSlow shut control valve (Pump control valve) SK760XPressure differential by-pass balancing valve SK780XDeluge alarm valve SK790X

    No other special requirements 00Special closing and opening speed 03Non-retuning 06With high sensitive pilot valve 09With electromagnetic valve 12With electromagnetic valve and non-return 15With overpressure protection pilot valve 18With dual-disc 21Cracking pressure lower than 0.05MPa 24With throttle opening 27With indication of position 30With exhaust unit 33With Double liquid level control 36With ushing function in up chamber 39Other special requirement 99

    Water supply piping system: WWDrinking water piping system: WDAggressive water piping system: WAAir conditioning water piping system: WCHeating piping system: WH

    Notes for Installation of Hydraulic Control Valve

    R&D Center: Chief Engineer: Ms. Xiaobei HuangTel: 0086-531-87746667E-mail: [email protected]

    Sales Department: Exporting Sales Department: Ms. Zhaoxia SuTel: 0086-531-87879384Fax: 0086-531-87879387E-mail: [email protected]

    Exporting Sales Department: Ms. Sunny GuoTel: 0086-531-87885036Fax: 0086-531-87879387E-mail: [email protected]

    For English Speaking Service

    Examples: DN80, PN16, Dual-chamber diaphragm type remote oat control valve for water supply piping system, with electromagnetic valve controlling, Ductile iron basic valve body, brass pilot valve: WW-080-SK750X-12-QT-16DN200, PN10, Dual-Chamber diaphragm type slow control valve for drinking water piping system, specially used for the pool water (under 0.05MPa), Stainless steel basic valve body, Stainless steel pilot valve: WD-200-SK760X-24-PP-10

    Check the uniformity of name plate, quality guarantee card and marking on valve products. Clean the pipes and make sure no rocks, welding slags and other sundries. Horizontal installation is the best choice, and other installing direction can also be chosen and work properly. Strainer is suggested to be installed before the basic valve, besides, maintenance gate valves were also suggested to be installed before and after the basic valve. Make sure the direction of ow is same as arrow on basic valve. The protection plugs on the both ends are suggested to be removed just before installation to avoid sundries coming inside. Check the connection of conduits to make sure no broken, damage and loosing after installation. Check the repairing ball valve to make sure they're open after installation.

  • 48 49

    BS VALVES

    DNmm

    Mating dimensions Flange thickness

    Outside diameter of ange

    D

    Diameter of bolt circle

    K

    Diameter of bolt hole

    L

    Bolts C

    Numbern

    Nominal size Grey Iron Ductile Iron Malleable Iron

    10 90 60 14 4 M12 14 14 14

    15 95 65 14 4 M12 14 14 14

    20 105 75 14 4 M12 16 16 16

    25 115 85 14 4 M12 16 16 16

    32 140 100 19 4 M16 18 18 18

    40 150 110 19 4 M16 18 19 18

    50 165 125 19 4 M16 20 19 20

    65 185 145 19 4 M16 20 19 20

    80 200 160 19 8 M16 22 19 20

    100 220 180 19 8 M16 24 19 22

    125 250 210 19 8 M16 26 19 22

    150 285 240 23 8 M20 26 19 24

    200 340 295 23 8 M20 26 20 24

    250 395 350 23 12 M20 28 22 26

    300 445 400 23 12 M20 28 24.5 26

    350 505 460 23 16 M20 30 24.5 -

    400 565 515 28 16 M24 32 24.5 -

    450 615 565 28 20 M24 32 25.5 -

    500 670 620 28 20 M24 34 26.5 -

    600 780 725 31 20 M27 36 30 -

    700 895 840 31 24 M27 40 32.5 -

    800 1015 950 34 24 M30 44 35 -

    900 1115 1050 34 28 M30 46 37.5 -

    1000 1230 1160 37 28 M33 50 40 -

    1200 1455 1380 41 32 M36 56 45 -

    1400 1675 1590 44 36 M39 62 46 -

    1600 1915 1820 50 40 M45 68 49 -

    1800 2115 2020 50 44 M45 70 52 -

    2000 2325 2230 50 48 M45 74 55 -

    DNmm

    Mating dimensions Flange thickness

    Outside diameter of ange

    D

    Diameter of bolt circle

    K

    Diameter of bolt hole

    L

    Bolts C

    Numbern Nominal size Grey Iron Ductile Iron Malleable Iron

    10 90 60 14 4 M12 14 14 14

    15 95 65 14 4 M12 14 14 14

    20 105 75 14 4 M12 16 16 16

    25 115 85 14 4 M12 16 16 16

    32 140 100 19 4 M16 18 18 18

    40 150 110 19 4 M16 18 19 18

    50 165 125 19 4 M16 20 19 20

    65 185 145 19 4 M16 20 19 20

    80 200 160 19 8 M16 22 19 20

    100 220 180 19 8 M16 24 19 22

    125 250 210 19 8 M16 26 19 22

    150 285 240 23 8 M20 26 19 24

    200 340 295 23 12 M20 30 20 24

    250 405 355 28 12 M24 32 22 26

    300 460 410 28 12 M24 32 24.5 28

    350 520 470 28 16 M24 36 26.5 -

    400 580 525 31 16 M27 38 28 -

    450 640 585 31 20 M27 40 30 -

    500 715 650 34 20 M30 42 31.5 -

    600 840 770 37 20 M33 48 36 -

    700 910 840 37 24 M33 54 39.5 -

    800 1025 950 41 24 M36 58 43 -

    900 1125 1050 41 28 M36 62 46.5 -

    1000 1255 1170 44 28 M39 66 50 -

    1200 1485 1390 50 32 M45 - 57 -

    1400 1685 1590 50 36 M45 - 60 -

    1600 1930 1820 57 40 M52 - 65 -

    1800 2130 2020 57 44 M52 - 70 -

    2000 2345 2230 62 48 M56 - 75 -

    Flange Dimensions Flange Dimensions

    Dimensions of PN10 anges (BS EN 1092-2:1997) Dimens ions o f PN10 f langes (BS EN 1092-2 :1997)

    (mm)(mm)

  • 50 51

    BS VALVES

    Note: