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VALVE RoHS ISO9001 Instruction For Use Specialized Fluid Control Valve Manufacturer SOLENOID VALVE ELECTRIC VALVE PNEUMATIC VALVE COVNA Headquarter: 3F,Building 1,Yonglida Science Park,Guangming Road, Dongchen district,Dongguan City,China E-MAIL[email protected] TEL86-769-22456666 22763199 FAX86-769-22825120 www.covna-valve.com www.covna-china.com English Website

InstructionForUse 3 way...Structure type Floating ball core Applicable Medium Water, Liquids, Gas, Oil, Powder, Steam, Acid-base Corrosive Medium. Disc Material SS304, SS316, SS316L

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  • VALVE

    RoHSISO9001

    Instruction For Use

    Specialized Fluid Control Valve Manufacturer

    SOLENOID VALVE

    ELECTRIC VALVE

    PNEUMATIC VALVE

    COVNA Headquarter:

    3F,Building 1,Yonglida Science Park,Guangming Road,

    Dongchen district,Dongguan City,China

    E-MAIL:[email protected]

    TEL:86-769-22456666 22763199

    FAX:86-769-22825120

    www.covna-valve.com

    www.covna-china.com English Website

  • 1 www.covna-china.com

    Technical Parameters

    DN15 DN20 DN25 DN32 DN40N.W.(kg)

    Valve Body

    Actuator

    DN50 DN65 DN80 DN100

    1.38

    0.7 0.8

    1.38

    0.85

    2.18

    1.2

    2.78

    1.9

    3.18

    2.7

    4.58

    4.2

    4.58

    6.8

    5.88

    8.9

    1.38

    Nominal Size

    SS304, SS316, SS316LBody Material

    Connection Type

    Pressure Rating

    PTFE: -30℃ ~180℃

    PPL: -30℃ ~ 250℃

    Seat Material

    Structure type Floating ball core Applicable MediumWater, Liquids, Gas, Oil, Powder, Steam, Acid-base Corrosive Medium.

    SS304, SS316, SS316LDisc Material

    SS304,Stem Material

    2www.covna-china.com

    Quick open and close, less flowing resistance.

    PTFE sealing, perfect sealing, high temperature, corrosion

    resistance, acid and alkali resistance. The main features of

    the valve itself is compact, easy operation and maintenance

    for water, acids and natural gas general working media.

    Never try to disassemble valve when it is under pressure. If this valve is to be installed between two mated welding

    flanges, it is permissible to tack weld the flange in place with the valve in line in order to align bolt holes however the

    valve should the be removed until after the welded cooled to prevent heat distortion of soft parts. Stem Packing

    Adjustment: If leakage is evident in the stem packing area, tighten adJusting nut (1/2"-2") or the gland bolts (3"-6")¼

    tum. If leak persists, repeat tightening. Replacement of stem packing is indicated if the leak is apparent after ½tum

    For Two Piece Flanged Valves Only: This is a bi-directional valve and may be installed with flow in either direction.

    MEDLE

    DN32

    DN40

    DN50

    DN65

    D1 D2 D3

    DN20

    DN25

    D

    DN100

    DN80

    n– d

    20

    25

    32

    40

    50

    65

    80

    100

    95

    105

    115

    140

    150

    165

    185

    200

    220

    65

    75

    85

    100

    110

    125

    145

    160

    180

    45

    55

    65

    78

    85

    100

    120

    135

    155

    15DN15

    L

    150

    164

    180

    200

    220

    240

    260

    280

    320

    L1

    72

    80

    90

    100

    110

    120

    130

    140

    160

    H

    53

    58.5

    70

    77.5

    88.5

    92

    107

    119

    150

    DN125 125 250210185 380190 200

    DN150 150 285240210 8- 23440220 240

    DN200 200 340295265 8- 23550260 300

    Double acting

    Optional accessory

    Air to open, air to close, air supply failure to keep the current position

    Reversing solenoid valve, limit switch box, air filter reducing valve, positioner, handle manual, lock up valve

    Single Acting N/O

    Single Acting N/C

    VALVE VALVE

  • www.covna-china.com

    1、Operating media

    Dry or lubricated air, or the non-corrosive gases The maximum particle diameter

    must less than 30 u m

    2、Air supply pressure

    The minimum supply pressure is 2.5 Bar The maximum supply pressure is 8 Bar

    3、Operating temperature

    Standard: -20°c〜+ 80°c

    Low temperature: -35°c —l-80°c

    High temperature: -15°c —M50°c

    4、Travel adjustment

    Have adjustment range of ±5° for the rotation at 0°and 90°

    www.covna-china.com

    Solution

    Can Not Move

    Failure Phenomenon

    3 4

    VALVE VALVE

    MODEL

    ∅36

    页 11.pdf页 1

    气动执行器(英)页 1

    气动执行器(英)页 1

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