496.en

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AP ES CPEP

Full lift safety valvewith spring loading.(AIT)

Model 496

The valve works as an automatic pressure releasing regulator activated by the static pressure existing at the entranceto the valve and is characterized by its ability to open instantly and totally.

Design in accordance with “International Standard ISO 4126-1:2004 Safety Valves”.In accordance with the requirements of directive 97/23/EC.EC valve verification certified by: TÜV Internacional Grupo TÜV Rheinland, S.L. EC 0035.Type (Module D) EC examination report nº 33530455 certified by: TÜV Internacional Grupo TÜV Rheinland, S.L.In compliance with the ATEX 94/9/CE directive “Protective equipment and systems for use in potentially explosiveatmospheres”.Other authorisations: ISCIR, ITI, NASTHOL,...etc.

Specifications

— 90° angular flow.

— Activated by direct action helicoid spring.— Simplicity of construction ensuring minimum maintenance.— Materials carefully selected for their resistance to corrosion. With the exception of washers and couplings, the valves

are free of non-ferric materials.— Internal body designed to offer favourable flow profile.— Sealing surfaces treated and balanced, making them extremely tightness, even exceeding EN 12266-1 requeriments.— Great discharge capacity. For liquids typically used with openings similar to proportional safety valves .— Equipped with draining screws for removing condensation.— Auto-centering plug.— Threaded shaft with lever positioner facilitating immediate manual action.— Elevator, independent of the seal, designed facilitate sudden opening when the steam expands and, with any fluid,

guarantees absolute opening and closing precision.

— All the valves are supplied sealed at the set pressure requested, simulating operational conditions, and arevigorously tested.— All components are numbered, registered and checked. If requested in advance, material, casting, test and efficiency

certificates will be enclosed with the valve, and the instruction manual, in accordance with P.E.D.97/23 EC.

E N

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(4) DN-200x300 in Stainless steel (DIN-1.4027).(5) DN-200x300 in Stainless steel (EN-1.4408).(6) DN-20x32 in Stainless steel (DIN-1.4301).(7) DN-32x50 to DN-65x100 in Stainless steel (DIN-1.4401).

Stainless steel (EN-1.4408)Stainless steel (EN-1.4408)Stainless steel (EN-1.4408)Stainless steel (EN-1.4408)Stainless steel (EN-1.4408)(7)Stainless steel (EN-1.4301)Carbon steel (EN-1.0037 St-37.2)Stainless steel (EN-1.4542)Stainless steel (EN-1.4542)Stainless steel (EN-1.4401) (5)Stainless steel (EN-1.4305)Stainless steel (EN-1.4401)Stainless steel (EN-1.4401)Stainless steel (EN-1.4305)Stainless steel (EN-1.4310)Stainless steel (EN-1.4401)Stainless steel (EN-1.4310)Stainless steel (EN-1.4310) (3)Stainless steel (EN-1.4305)Stainless steel (EN-1.4305)Stainless steel (EN-1.4305)Stainless steel (EN-1.4305)Stainless steel (EN-1.4401)Stainless steel (EN-1.4401)Stainless steel (EN-1.4401)Stainless steel (EN-1.4401)Stainless steel (EN-1.4401)

Stainless steel (EN-1.4401)PTFE (Teflón)PTFE (Teflón)PTFE (Teflón)PlasticSealing wireStainless steel (EN-1.4301)Stainless steel (EN-1.4401)PTFE (Teflón)Sil icone's rubber Fluorelastomer (Vitón)Stainless steel (EN-1.4401)PTFE (Teflón)Stainless steel (EN-1.4401)Fluorelastomer (Vitón)Fluorelastomer (Vitón)

BodyClosed bel lOpen bel lHoodElevator Ca mLever SeatingPlugLeadSpring pressSeparator Ro dLever shaftGudgeonRingSafety ringSpringGlandHollow screwHollow screw nutBuffer nutRod check nutNu tWasher StudScrew

Ca pCouplingCouplingSealSealSealing wireCharacterist ic platePlugSealing disk

Washer CouplingLimiter MembraneO-ring

01020304, 5, 6070809, 1011121314151617181920, 2122232425262728, 29, 4830, 313233, 34, 35

363839404142434546

4749505152

Cast iron (EN-5.1301)Cast iron (EN-5.1301)Cast iron (EN-5.1301)Nodular iron (EN-5.3106)Nodular iron (EN-5.3106) (1)Carbon steel (EN-1.0037 St-37.2) (6)Carbon steel (EN-1.0037 St-37.2)Stainless steel (EN-1.4028)Stainless steel (EN-1.4028)Stainless steel (EN-1.4028) (4)Carbon steel (EN-1.1191)Stainless steel (EN-1.4028)Stainless steel (EN-1.4028)Carbon steel (EN-1.1191)Carbon steel (EN-1.1231)Stainless steel (EN-1.4028)Stainless steel (EN-1.4310)Vanadium-chrome steel (EN-1.8159) (2)Carbon steel (EN-1.1191)Stainless steel (EN-1.4305)Stainless steel (EN-1.4305)Stainless steel (EN-1.4305)Carbon steel (EN-1.1141)Carbon steel (EN-1.1141)Carbon steel (EN-1.1141)Carbon steel (EN-1.1181)Carbon steel (EN-1.1191)

Carbon steel (EN-1.1181)GraphitePTFE (Teflón)GraphitePlasticSealing wireStainless steel (EN-1.4301)Stainless steel (EN-1.4401)PTFE (Teflón)Sil icone's rubber Fluorelastomer (Vitón)Stainless steel (EN-1.4401)Copper Stainless steel (EN-1.4028)Fluorelastomer (Vitón)Fluorelastomer (Vitón)

DN1 x DN2

PN

20 x 32 a 200 x 300

16

-10

40

-10

40

-10

40

-60

16120

13200

13250

13300

40

120

35

200

32

250

28

300

24

350

40

120

35

200

32

250

28

300

24

350

21

400

40

120

34

200

32

300

29

400

Nodular iron (EN-5.3106)Nodular iron (EN-5.3106)Nodular iron (EN-5.3106)Nodular iron (EN-5.3106)Nodular iron (EN-5.3106) (1)Carbon steel (EN-1.0037 St-37.2) (6)Carbon steel (EN-1.0037 St-37.2)Stainless steel (EN-1.4028)Stainless steel (EN-1.4028)Stainless steel (EN-1.4028) (4)Carbon steel (EN-1.1191)Stainless steel (EN-1.4028)Stainless steel (EN-1.4028)Carbon steel (EN-1.1191)Carbon steel (EN-1.1231)Stainless steel (EN-1.4028)Stainless steel (EN-1.4310)Vanadium chrome steel (EN-1.8159) (2)Carbon steel (EN-1.1191)Stainless steel (EN-1.4305)Stainless steel (EN-1.4305)Stainless steel (EN-1.4305)Carbon steel (EN-1.1141)Carbon steel (EN-1.1141)Carbon steel (EN-1.1141)Carbon steel (EN-1.1181)Carbon steel (EN-1.1191)


Cast steel (EN-1.0619+N)Nodular iron (EN-5.3106)Cast steel (EN-1.0619+N)Nodular iron (EN-5.3106)Nodular iron (EN-5.3106) (1)Carbon steel (EN-1.0037 St-37.2) (6)Carbon steel (EN-1.0037 St-37.2)Stainless steel (EN-1.4028)Stainless steel (EN-1.4028)Stainless steel (EN-1.4028) (4)Carbon steel (EN-1.1191)Stainless steel (EN-1.4028)Stainless steel (EN-1.4028)Carbon steel (EN-1.1191)Carbon steel (EN-1.1231)Stainless steel (EN-1.4028)Stainless steel (EN-1.4310)Vanadium chrome steel (EN-1.8159) (2)Carbon steel (EN-1.1191)Stainless steel (EN-1.4305)Stainless steel (EN-1.4305)Stainless steel (EN-1.4305)Carbon steel (EN-1.1141)Carbon steel (EN-1.1141)Carbon steel (EN-1.1141)Carbon steel (EN-1.1181)Carbon steel (EN-1.1191)


20

450

(1) DN-20 x 32 in stainless steel (EN-1.4408).(2) Spring steel (EN-10270-1-SH) for wire spring Ø < 10 mm. Maximum temperature EP, ES and CP 250°C / AP 400ºC.(3) Vanadium chrome steel (EN-1.8159) for wire spring Ø > 10 mm.

N°.PIECE

PIECEMATERIAL

CAST IRON CAST STEELNODULAR IRON STAINLESS STEEL

PR ESSU R E IN bar

M AX. TE M P. IN °C

M IN . TEM P. IN °C

OPERATING

CONDITIONS

IMPORTANTDepending on demand:1.- Blocking screw which facilitates hydrostatic testing of the container which to be1.- protected.2.- Rapid limiter to reduce the coefficient of discharge.3.- Fluorelastomer (Vitón) seals, Silicone's rubber, PTFE (Teflón)... etc., achieving3.- leakage levels less than

0,3 x 10-3Pa cm3

seg.

The ranges of application allow certain flexibility although we recommend limiting them to:

RANGE OF APPLICATION FOR THE SEALS

FLUID

Saturated steam

Liquids and gases

SEALS

Silicone's rubber Fluorelastomer (Vitón)

PTFE (Teflón)

SET PRESSURE IN bar 40,00,2 1,8 4,0 4,8 7,0 30,0

TVS

S V TTEMPERATURE IN °C

ACCORDING TO MANUFACTURERS RECOMMENDED BY VYC

MINIMUM MAXIMUM

-60-40

-265

SVT

+200+250+260

MINIMUM MAXIMUM

-50-30-80

+115+150+230 (1)

(1) For temperatures exceeding 230°C apply metallic seal only

4.- Flourelastomer (Vitón) membrane and O-ring isolating the rotating or sliding4.- parts from the working fluid.5.- Electrical contact indicating open/closed.6.- Balance bellows to:mmmProtect the spring from atmospheric influences.mmmEnsure outside of valve body is totally tightness.mmmLevel out external or self-generated back pressure.7.- Possibility of manufacture in other types of material, for special operating con-7.- ditions (high temperatures, fluids, etc.).8.- Totally free of oil and grease, to work with oxygen, avoiding possible fire risks8.- (UV-Oxygen-VBG 62).9.- Special springs for critical temperatures.

1 2

3 4

5 6

(EN-1.0037 St-37.2) (7)

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Full lift safety valve with spring loading (AIT) model 496 - AP and CP.1. Disassembly and assembly.1.1 Disassembly.To replace the spring (22) or clean any of the internal components of the valve, proceed in the following manner:

A - Withdraw the clip (18), using a punching tool, until the lever (10) comes free.B - Loosen the screws (34) and take the cap (6) off.C - Holding the spindle (16) steady, loosen the hollow screw nut (25) and the holow screw (24) until you note arealasing of the spring (22).D - Mark on the spindle (16) the position of the spindle lock-nut (27) and the adjusting nut (26). Loosen themand remove them.E -Unscrew the nuts (29) and remove them, together with the studs (32) and their washers (30).F - Lift the cover (3) or (2) and you will have access to all of the components.1.2 Assembly.

A - Pl ac e th e sa fe ty -r in g (2 0) on th e spi nd le (1 6) an d pr es s it agai ns t th e ga sk et (1 2) .B - In the spindle channel (16) connect the ring (19) and fix it to the security-ring (21). IIntroduce the elevator (7)into the upper part of the spindle (16) and press this against the previously described pieces.C - Enter the guide (13), the separator (15), the spring-press (14), the spring (22), the spring-press (14) throughthe upper part of the spindle (16) and press this against the previously descrobed pieces.D - Replace the assembly (38) and the cover (3) or (2).E - Place the washers (30) on the studs (32) and make up the nuts (29) diagonally, checking the correctalignment of the cover (3) or (2).F - Adjust the firing pressure with the hollow screw (24) and fix the adjustment position with the hollow screwnut (25).G - Turn the spindle lock-nut (27) and the adjusting nut (26) to the position mrked (see 1.1.D) and make upagainst each other.H - Introduce the cap (6) and tighten the screws (34).I - Place the lever (10) and fix it with the fastener (18).2. Adjusting the firing pressure.

A - Proceed according to points 1.1.A, 1.1.B, 1.1.C.B - Proceed according to points 1.2.F, 1.2.H, 1.2.I.

Full lift safety valve with spring loading (AIT) model 496 - EP.1. Disassembly and assembly .1.1 Disassembly.To replace the spring (22), or clean any of the internal components of the valve, proceed in the following manner:

A - Move the lever (9) in direction C as far as the constructive catcher.B - Unscrew the cap (4) and remove.C - Holding the spindle (16) steady, loosen the hollow screw nut (25) and the hollow screw (24) until you note arealeasing of the spring (22).D - Mark on the spindle (16) the position of the spindle lock-nut (27) and the adjusting nut (26). Loosen them andremove them.E -Unscrew the nuts (29) and remove them, together with the studs (32) and their washers (30).F - Lift the cover (2) and you will have access to all of the components.1.2 Assembly.

A - Place the safety-ring (20) on the spindle (16) and press it against the gasket (12).B - In the spindle channel (16) connect the ring (19) and fix it to the security-ring (21). Introduce the elevator (7)into the upper part of the spindle (16) and press this against the previously described pieces.C - Enter the guide (13), the separator (15), the spring-press (14), the spring (22), the spring-press (14) throughthe upper part of the spindle (16) in a correlative manner.D - Replace the assembly (38) and the cover (2).E - Place the washers (30) on the studs (32) and make up the nuts (29) diagonally, checking the correctalignment of the cover (2).F - Adjust the firing pressure with the hollow screw (24) and fix the adjustment position with the hollow screw nut(25).G - Turn the spindle lock-nut (27) and the adjusting nut (26) to the position marked (see 1.1.D) and make upagainst each other.H - Change the coupling (39) and lightly tighten the cap (4). Move the lever (9) towards position A as far as theconstructive catcher. Definitively tighten the cap (4).2. Adjustig the firing pressure.

A - Proceed according to points 1.1.A, 1.1.B, 1.1.C.B - Proceed according to points 1.2.F, 1.2.H.

Full lift safety valve with spring loading (AIT) model 496 - ES.

1. Disassembly and assembly.1.1 Disassembly.To replace the spring (22), or clean any of the internal components of the valve, proceded in the followingmanner:

A - Unscrew the cap (5) and remove.B -Holding the spindle (16) steady, loosen the hollow screw nut (25) and the hollow screw (24) until you note arealeasing of the spring (22).C - Unscrew the nuts (29) and remove them, together with the studs (32) and their washers (30).F - Lift the cover (2) and you will have access to all of the components.1.2 Assembly.

A - Place the safety-ring (20) on the spindle (16) and press it against the gasket (12).B - In the spindle channel (16) connect the ring (19) and fix it to the security-ring (21).Introduce the elevator (7) into the upper part of the spindle (16) and press this against the previously describedpieces.C - Enter the guide (13), the separator (15), the spring-press (14), the spring (22), the spring-press (14) throughthe upper part of the spindle (16) in a correlative manner.D - Replace the washers (38) and the cover (2).

E - Place the washers (30) on the studs (32) and make up the nuts (29) diagonally, checking the correctalignment of the cover (2).F - Adjust the firing pressure with the hollow screw (24) and fix the adjustment position with the hollow screw nut(25).G - Change the coupling (39) and tighten the cap (5).2. Adjusting the firing pressure.

A - Proceed according to points 1.1.A, 1.1.B.B - Proceed according to points 1.2.F, 1.2.G.

EP

AP

ES

CP

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EP ES CPAP

< 3

≥ 3

< 3

≥ 3

+ 5 %

+ 5 %

+ 10 %

+ 10 %

- 0,3 bar

- 10 %

- 0,6 bar

- 20 %

If external backpressure exists, the AP and CP modelcannot be used.

With external constant backpressure, the spring is adjusteddeducting the backpressure from the set pressure.

If the set pressure < 3 bar we must consider the totalatmospheric pressure (1 bar) as external constant

backpressure being freely released.

If pa > 0,25p, we must limit plug speed with the consequentreduction of the αd coefficient of discharge.With the new reduced coefficient we determine the d0, inorder to remove the necessary volume.

pa =pa =αd =

(1)

(2)

(3)

EP AP ES(1)

15

—

5

—

50

90

10

25

CP(1)

Backpressure permitted [bar] absolute.Set pressure [bar] absolute.Coefficient of discharge.

OPEN AND CLOSED PRESSURES IN % OF SET PRESSURE

FLUID

SATURATEDSTEAMGASES

LIQUIDS

P R ES S UR E IN b a r O P EN IN G P RE S SU R E C L OS IN G P RE S SU R E

RECOMMENDED RANGES OF APPLICATION

MODEL

SATURATED STEAM

GASES

LIQUIDS

FLUID

INTERNALOR

GENERATED

EXTERNALVARIABLE

(1)

EXTERNALCONSTANT

(1)(2)(3)

P E R M I S S I B L E B A C K

P R E S S U R E I N %

O F S E T P R E S S U R E

%OVERPRESSURE

SATURATED STEAMGASES

LIQUIDS


LIQUIDS


LIQUIDS


LIQUIDS

* C a s t s t e e l ( E N - 1 . 0 6 1 9 ) a n d S t a i n l e s s s t e e l ( E N

- 1 . 4 4 0 8 ) .

• N o d u l a r i r o n ( E N - 5 . 3 1 0 6 ) .

( 1 ) F r o m D N - 1 2

5 x 2 0 0 P N - 1 0 .

( 2 ) D N - 2 0 0 x 3 0 0 P N - 1 0 .

( 3 ) D N - 2 0 0 x 3 0 0 P N - 2 5 .

20 x 32

16

201

350

112

85

95

1/4"

105

75

14

16

4

105

75

14

18(16)•

4

140

100

19(18)*

18

4

25 x 40

20

314

395

129

95

105

1/4"

115

85

14

16

4

115

85

14

18(16)•

4

150

110

19(18)*

18

4

32 x 50

25

491

415

129

100

110

1/4"

140

100

19

18

4

140

100

19(18)*

18

4

165

125

19(18)*

20

4

40 x 65

32

804

500

148

115

130

1/4"

150

110

19

18

4

150

110

19(18)*

18(20)•

4

185

145

19(18)*

20(18)*

4

50 x 80

40

1257

555

148

125

145

1/4"

165

125

19

20

4

165

125

19(18)*

20

4

200

160

19(18)*

22(20)•*

8

65 x 100

50

1964

660

191

140

150

3/8"

185

145

19

20

4

185

145

19(18)*

22

8

220

180

19(18)*

24(22)•(20)*

8

80 x 125

63

3117

710

191

155

170

3/8"

200

160

19

22

8

200

160

19(18)*

24

8

250

210

19(18)*

26(22)•*

8

100 x 150

77

4657

810

191

175

180

3/8"

220

180

19

24

8

235

190

23(22)*

24

8

285

240

23(22)*

26(24)•(22)*

8

EPAPES EP AP ES EP AP ES EP AP ES EP AP ES EP AP ES EP AP ES EP AP ES

8 ,0 0

8 ,7 3

8 ,5 0

7 ,4 0

8 ,0 7

7 ,8 6

7 ,6 0

8 ,2 9

8 ,0 7

9 ,6 0

1 0 ,4 7

1 0 ,6 0

8 ,8 8

9 ,6 8

9 ,8 0

9 ,1 2

9 ,9 4

1 0 ,0 7

1 3 ,8 7

1 5 ,1 3

1 4 ,8 7

1 2 ,8 2

1 3 ,9 9

1 3 ,7 5

1 3 ,1 7

1 4 ,3 7

1 4 ,1 2

2 0 ,2 7

2 2 ,11

2 1 ,2 7

1 8 ,7 4

2 0 ,4 5

1 9 ,6 7

1 9 ,2 5

2 1 ,0 0

2 0 ,2 0

2 6 ,6 8

2 9 ,11

2 8 ,6 8

2 4 ,6 7

2 6 ,9 2

2 6 ,5 2

2 5 ,3 4

2 7 ,6 5

2 7 ,2 4

3 9 ,4 8

4 3 ,0 8

4 1 ,4 8

3 6 ,5 2

3 9 ,8 4

3 8 ,3 6

3 7 ,5 0

4 0 ,9 2

3 9 ,4 0

5 5 ,4 8

6 0 ,5 4

5 8 ,4 8

5 1 ,3 2

5 5 ,9 9

5 4 ,0 9

5 2 ,7 0

5 7 ,5 1

5 5 ,5 5

8 2 ,1 5

8 9 ,6 4

8 7 ,1 5

7 5 ,9 8

8 2 ,9 1

8 0 ,6 1

7 8 ,0 4

8 5 ,1 5

8 2 ,7 9

5 3 4 6

5 3 4 6 1

5 3 4 6 2

5 3 4 6 3

5 1 0 6

5 1 0 6 1

5 1 0 6 2

5 1 0 6 3

5 1 4 6

5 1 4 6 1

5 1 4 6 2

5 1 4 6 3

5 1 2 6

5 1 2 6 1

5 1 2 6 2

5 1 2 6 3

5 2 0 6

5 2 0 6 1

5 2 0 6 2

5 2 0 6 3

5 2 2 6

5 2 2 6 1

5 2 2 6 2

5 2 2 6 3

5 3 0 6

5 3 0 6 1

5 3 0 6 2

5 3 0 6 3

5 4 0 6

5 4 0 6 1

5 4 0 6 2

5 4 0 6 3

5 5 0 6

5 5 0 6 1

5 5 0 6 2

5 5 0 6 3

5 6 0 6

5 6 0 6 1

5 6 0 6 2

5 6 0 6 3

5 8 0 6

5 8 0 6 1

5 8 0 6 2

5 8 0 6 3

8 3 4 6

8 3 4 6 1

8 3 4 6 2

8 3 4 6 3

8 1 0 6

8 1 0 6 1

8 1 0 6 2

8 1 0 6 3

8 1 4 6

8 1 4 6 1

8 1 4 6 2

8 1 4 6 3

8 1 2 6

8 1 2 6 1

8 1 2 6 2

8 1 2 6 3

8 2 0 6

8 2 0 6 1

8 2 0 6 2

8 2 0 6 3

8 2 2 6

8 2 2 6 1

8 2 2 6 2

8 2 2 6 3

8 3 0 6

8 3 0 6 1

8 3 0 6 2

8 3 0 6 3

8 4 0 6

8 4 0 6 1

8 4 0 6 2

8 4 0 6 3

8 5 0 6

8 5 0 6 1

8 5 0 6 2

8 5 0 6 3

8 6 0 6

8 6 0 6 1

8 6 0 6 2

8 6 0 6 3

8 8 0 6

8 8 0 6 1

8 8 0 6 2

8 8 0 6 3

8 3 4 4

8 3 4 4 1

8 3 4 4 2

8 3 4 4 3

8 1 0 4

8 1 0 4 1

8 1 0 4 2

8 1 0 4 3

8 1 4 4

8 1 4 4 1

8 1 4 4 2

8 1 4 4 3

8 1 2 4

8 1 2 4 1

8 1 2 4 2

8 1 2 4 3

8 2 0 4

8 2 0 4 1

8 2 0 4 2

8 2 0 4 3

8 2 2 4

8 2 2 4 1

8 2 2 4 2

8 2 2 4 3

8 3 0 4

8 3 0 4 1

8 3 0 4 2

8 3 0 4 3

8 4 0 4

8 4 0 4 1

8 4 0 4 2

8 4 0 4 3

8 5 0 4

8 5 0 4 1

8 5 0 4 2

8 5 0 4 3

8 6 0 4

8 6 0 4 1

8 6 0 4 2

8 6 0 4 3

8 8 0 4

8 8 0 4 1

8 8 0 4 2

8 8 0 4 3

8 3 4 2

8 3 4 2 1

8 3 4 2 2

8 3 4 2 3

8 1 0 2

8 1 0 2 1

8 1 0 2 2

8 1 0 2 3

8 1 4 2

8 1 4 2 1

8 1 4 2 2

8 1 4 2 3

8 1 2 2

8 1 2 2 1

8 1 2 2 2

8 1 2 2 3

8 2 0 2

8 2 0 2 1

8 2 0 2 2

8 2 0 2 3

8 2 2 2

8 2 2 2 1

8 2 2 2 2

8 2 2 2 3

8 3 0 2

8 3 0 2 1

8 3 0 2 2

8 3 0 2 3

8 4 0 2

8 4 0 2 1

8 4 0 2 2

8 4 0 2 3

8 4 0 2

8 4 0 2 1

8 4 0 2 2

8 4 0 2 3

8 6 0 2

8 6 0 2 1

8 6 0 2 2

8 6 0 2 3

8 8 0 2

8 8 0 2 1

8 8 0 2 2

8 8 0 2 3

CP

7 ,8 0

8 ,4 9

8 ,2 7

CP

9 ,3 8

1 0 ,2 0

1 0 ,3 3

CP

1 3 ,4 3

1 4 ,6 3

1 4 ,3 8

CP

1 9 ,6 8

2 1 ,4 3

2 0 ,6 3

CP

2 5 ,7 7

2 8 ,0 8

2 7 ,6 7

CP

3 8 ,1 0

4 1 ,5 2

4 0 ,0 0

CP

5 3 ,3 0

5 8 ,11

5 6 ,1 5

CP

7 8 ,6 4

8 5 ,7 5

8 3 ,3 9

EP AP ES

9 4 ,5 0

9 7 ,0 0

1 0 4 ,3 8

8 8 ,6 4

9 1 ,1 6

9 7 ,8 6

9 2 ,8 0

9 5 ,3 9

1 0 2 ,6 5

CP

93 ,3 3

95 ,8 4

103 ,1 0

EP AP ES

1 3 8 ,1 0

1 7 3 ,4 8

1 5 2 ,1 0

1 3 0 ,8 0

1 3 6 ,2 5

1 4 4 ,4 8

135 ,1 0

140 ,4 3

149 ,3 0

CP

136 ,3 7

141 ,8 0

180 ,6 5

EP AP ES

228 ,1 0

234 ,6 3

250 ,8 8

214,60

221,14

235,94

221 ,7 2

228 ,2 5

243 ,6 1

CP

224 ,3 0

230 ,8 3

246 ,7 5

125 x 200

93

6793

858

191

215

220

1/2”

250

210

19

26

8

270

220

28(26)*

26

8

340

295

23(22)*

26(24)•*

8

150 x 250

110

9503

1029

247

225

245

1/2”

285

240

23

26

8

300

250

28(26)*

28

8

395

350

23(22)*

28(26)•*

12

200 x 300

155

18870

1252

331

265

290

1/2”

340

295

23

26

8

360

310

28(26)*

30

12

445

400

23(22)*

28(26)•*

12

Whitworth gas-tight cylindrical female thread ISO 228/1 1978 (DIN-259)

DN1 x DN2

do

Ao = .

H

h1

L1

L2

R

π . do2

4

W E I G H T I N K g s .

C O D E

CAST IRON

NODULAR IRON

C A S T IR O N

2002-496.

N O D U LA R IR O N

2002-496.

C A S T S T E E L

2002-496.

S TA IN LE S S S TE E L

2002-496.

CAST STEELSTAINLESS STEEL

D1

K1

Ι1

b1

D R I L L S N .°

D1

K1

Ι1

b1

D R I L L S N .°

D2

K2

Ι2

b2

D R I L L S N .°

I N T A K E F L A N G E

E S C

A P E F L A N G E

MODEL

P N - 1 0 / 1 6 E N - 1 0 9 2 - 2

( 2 )

P N - 2 5 / 4 0

E N - 1 0 9 2 - 2

E N - 1 0 9 2 - 1

P N - 1 0

/ 1 6

E N - 1 0 9 2 - 2

E N - 1 0 9 2 - 1

( 1 )

( 3 )

8/19/2019 496.en

5/8

SET PRESSURES AND REGULATING RANGES

DN1 x DN2 125 x 200 150x250 200x30020 x 32

16

40

13

32

0,5

0,2

56210

56211

56212

56213

56214

56215

56216

56217

56218

56219

56220

56221

56222

56223

56224

56225

56390

56391

56392

56393

56394

56395

56396

56397

56398

56399

56400

56401

56402

56403

56404

56405

25 x 40

16

40

13

32

0,5

0,2

56226

56227

56228

56229

56230

56231

56232

56233

56234

56235

56236

56237

56238

56239

56240

56241

56406

56407

56408

56409

56410

56411

56412

56413

56414

56415

56416

56417

56418

56419

56420

56421

32 x 50

16

40

13

30

0,5

0,2

56242

56243

56244

56245

56246

56247

56248

56249

56250

56251

56252

56253

56254

56255

56256

56257

56422

56423

56424

56425

56426

56427

56428

56429

56430

56431

56432

56433

56434

56435

56436

56437

40 x 65

16

32

13

24

0,5

0,2

56258

56259

56260

56261

56262

56263

56264

56265

56266

56267

56268

56269

56438

56439

56440

56441

56442

56443

56444

56445

56446

56447

56448

56449

56270

56271

56272

50 x 80

16

32

13

22

0,5

0,2

56273

56274

56275

56276

56277

56278

56279

56280

56281

56282

56453

56454

56455

56456

56457

56458

56459

56460

56461

56462

56283

56284

56285

56286

56287

65 x 100

16

32

13

24

0,5

0,2

56288

56289

56290

56291

56292

56293

56468

56469

56470

56471

56472

56473

56294

56295

56296

56297

56298

56299

56300

56301

56302

80 x 125

16

25

13

20

0,5

0,2

56303

56304

56305

56306

56483

56484

56485

56486

56307

56308

56309

56310

56311

56312

56313

56314

56315

56316

100 x 150

16

20

13

18

0,5

0,2

56317

56497

56318

56319

56320

56321

56322

56323

56324

56325

56326

56327

56328

56329

12,5

12,5

12,5

12,5

0,5

0,2

56500

56501

56502

56503

56504

56505

56506

56507

56508

56509

56510

10

10

10

10

0,5

0,2

56511

56512

56513

56514

56515

56516

56517

56518

56519

56520

8

8

8

8

0,5

0,2

56521

56522

56523

56524

56525

56526

56527

56528

56529

Spring steel (EN-10270-1-SH). Maximum temperature for EP, ES and CP models 250°C / AP 400ºC.

Vanadium-chrome steel (EN-1.8159).

Stainless steel (EN-1.4310).

MAXIMUM

(LIQUIDS AND GASES)

MAXIMUM

(SATURATEDSTEAM)

MINIMUM

S E T

P R E S S U R E S I N b

a r

S P R I N G R

E G U L A T I N G R

A N G E

I N b

a r

PN-16

PN-40

PN-16

PN-40

LIQUIDS

CODE

CODE

CODE

CODE

CODE

CODE

CODE

CODE

CODE

CODE

CODE

CODE

CODE

CODE

CODE

CODE

STEAM

AND GASES

0,20 a 0,68

0,66 a 1,00

0,95 a 1,40

1,30 a 1,90

1,80 a 2,60

2,50 a 3,60

3,50 a 5,00

4,80 a 6,30

6,00 a 8,00

7,50 a 10,00

9,50 a 12,50

12,00 a 16,00

15,00 a 20,00

18,00 a 25,00

23,00 a 32,00

30,00 a 40,00

8/19/2019 496.en

6/8

Overpressure in %

Saturated steamGases

Saturated steamGases

(1) d0 16-63(2) d0 77(3) d0 93-155

(1) d0 16-77(2) d0 93-110(3) d0 155

(1) d0 16-110(2) d0 155

Overpressure factorsMultiply the discharge capacity ob-tained from the tables, by thecorrection factor, in order to obtainthe discharge capacity at requiredoverpressure.

1,28

1,26

1,24

1,22

1,20

1,18

1,16

1,14

1,12

1,10

1,08

1,06

1,04

1,02

1,00 5 10 15 20 25

% p

Water

Air Saturated steam

DN1 x DN2

do

h

h1

h/do

h1/do (1)

2 0 x 3 2

16

7,00

2,60

0,44

0,16

2 5 x 4 0

20

9,00

3,20

0,45

0,16

3 2 x 5 0

25

12,00

04,00

00,48

00,16

4 0 x 6 5

32

12,00

05,20

00,38

00,16

5 0 x 8 0

40

18,00

06,50

00,45

00,16

0,78

0,60

0,36

6 5 x 1 0 0

50

18,00

08,00

00,36

00,16

8 0 x 1 2 5

63

20,00

10,00

00,32

00,16

1 0 0 x 1 5 0

77

29,00

12,50

00,38

00,16

1 2 5 x 2 0 0

93

34,40

16,74

0,37

0,18

0,78

1 5 0 x 2 5 0

110

36,80

19,80

0,33

0,18

0,78

0,52

2 0 0 x 3 0 0

155

56,15

27,90

0,36

0,18

0,74

COEFFICIENT OF DISCHARGE

COEFFICIENT

OF

DISCHARGE

αd


LIQUIDS

LIQUIDS WITHRAPID LIMITER (1)

hd0

hd0

pap

Liquids

20 x 32

16

201

25 x 40

20

314

p[bar]

SET PRESSUREIN bar

0 ,5

1 ,0

1 ,5

2 ,0

2 ,5

3 ,0

3 ,5

4 ,0

4 ,5

5 ,0

6 ,0

7 ,0

8 ,0

9 ,0

1 0 , 0

1 2 , 0

1 4 , 0

1 6 , 0

1 8 , 0

2 0 , 0

2 2 , 0

2 4 , 0

2 6 , 0

2 8 , 0

3 0 , 0

3 2 , 0

3 4 , 0

3 6 , 0

3 8 , 0

4 0 , 0

1 01

1 51

2 00

2 46

2 90

3 34

3 75

4 15

4 55

4 96

5 76

6 56

7 36

8 15

8 94

1 0 5 3

1 2 1 1

1 3 6 9

1 5 2 6

1 6 8 4

1 8 4 1

2 0 0 0

2 1 5 7

2 3 1 6

2 4 7 2

2 6 3 0

I

1 2 1

1 8 2

2 4 4

3 0 0

3 5 6

4 1 4

4 6 6

5 1 8

5 7 0

6 2 2

7 2 5

8 2 9

9 3 3

1 0 3 6

1 1 4 0

1 3 4 7

1 5 5 5

1 7 6 2

1 9 6 9

2 1 7 7

2 3 8 4

2 5 9 2

2 7 9 9

3 0 0 6

3 2 1 4

3 4 2 1

3 6 2 8

3 8 3 6

4 0 4 3

4 2 5 0

II

4 3 1 0

6 0 9 6

7 4 6 6

8 6 2 1

9 6 3 9

1 0 5 5 9

1 1 4 0 5

1 2 1 9 2

1 2 9 3 2

1 3 6 3 2

1 4 9 3 3

1 6 1 2 9

1 7 2 4 3

1 8 2 8 8

1 9 2 7 8

21118

2 2 8 1 0

2 4 3 8 5

2 5 8 6 4

2 7 2 6 3

2 8 5 9 4

2 9 8 6 5

3 1 0 8 5

3 2 2 5 8

3 3 3 9 0

3 4 4 8 6

3 5 5 4 7

3 6 5 7 8

3 7 5 8 0

3 8 5 5 6

III

15 7

23 6

31 2

38 5

45 3

52 2

58 5

64 8

7 11

77 4

89 9

1 0 2 4

1 1 4 9

1 2 7 3

1 3 9 7

1 6 4 5

1 8 9 1

2 1 3 9

2 3 8 4

2 6 3 1

2 8 7 6

3 1 2 4

3 3 7 0

3 6 1 8

3 8 6 1

4 1 0 9

I

20 0

28 5

38 0

46 9

56 9

64 8

73 0

8 11

89 2

97 3

1 1 3 5

1 2 9 8

1 4 6 0

1 6 2 2

1 7 8 4

2 1 0 9

2 4 3 3

2 7 5 8

3 0 8 2

3 4 0 7

3 7 3 1

4 0 5 6

4 3 8 0

4 7 0 5

5 0 2 9

5 3 5 3

5 6 7 8

6 0 0 2

6 3 2 7

6 6 5 1

II

6 7 3 4

9 5 2 3

1 1 6 6 4

1 3 4 6 8

1 5 0 5 8

1 6 4 9 5

1 7 8 1 7

1 9 0 4 7

2 0 2 0 2

2 1 2 9 5

2 3 3 2 8

2 5 1 9 7

2 6 9 3 6

2 8 5 7 0

3 0 1 1 6

3 2 9 9 0

3 5 6 3 4

3 8 0 9 4

4 0 4 0 5

4 2 5 9 0

4 4 6 6 9

4 6 6 5 6

4 8 5 6 1

5 0 3 9 4

5 2 1 6 3

5 3 8 7 3

5 5 5 3 1

5 7 1 4 1

5 8 7 0 7

6 0 2 3 2

III

DN1 x DN2

do

Ao= .π . do2

4

αd αd αd

8/19/2019 496.en

7/8

DISCHARGE CAPACITY

32 x 50

25

491

40 x 65

32

804

50 x 80

40

1257

65 x 100

50

1964

80 x 125

63

3117

100 x 150

77

4657

2 46

3 69

4 88

6 02

7 08

8 17

9 16

1 0 1 4

1112

1 2 1 0

1 4 0 6

1 6 0 2

1 7 9 7

1 9 9 1

2 1 8 5

2 5 7 2

2 9 5 8

3 3 4 4

3 7 2 7

4 1 1 3

4 4 9 7

4 8 8 4

5 2 6 9

5 6 5 7

6 0 3 8

I

4 0 2

6 0 4

7 9 9

9 8 6

1 1 6 0

1 3 3 7

1 4 9 9

1 6 6 0

1 8 2 1

1 9 8 2

2 3 0 3

2 6 2 3

2 9 4 2

3 2 6 1

3 5 7 8

4 2 1 2

4 8 4 3

5 4 7 6

6 1 0 3

6 7 3 6

7 3 6 4

7 9 9 8

I

4 82

7 24

9 60

1 1 9 1

1 4 1 5

1 6 6 4

1 8 7 2

2 0 8 0

2 2 8 8

2 4 9 6

2 9 1 3

3 3 2 9

3 7 4 5

4 1 6 1

4 5 7 7

5 4 1 0

6 2 4 2

7 0 7 4

7 9 0 7

8 7 3 9

9 5 7 1

1 0 4 0 0

1 1 2 3 6

1 2 0 6 8

1 2 9 0 0

1 3 7 3 3

II

1 7 2 4 3

2 4 3 8 5

2 9 8 6 6

3 4 4 8 6

3 8 5 5 6

4 2 2 3 6

4 5 6 2 0

4 8 7 7 0

5 1 7 2 9

5 4 5 2 7

5 9 7 3 1

6 4 5 1 7

6 8 9 7 2

7 3 1 5 6

7 7 1 1 3

8 4 4 7 3

9 1 2 4 1

9 7 5 4 1

1 0 3 4 5 8

1 0 9 0 5 4

1 1 4 3 7 7

1 1 9 4 6 3

1 2 4 3 4 1

1 2 9 0 3 5

1 3 3 5 6 3

1 3 7 9 4 4

III

6 2 9

9 4 5

1 2 4 9

1 5 4 1

1 8 1 3

2 0 9 0

2 3 4 3

2 5 9 6

2 8 4 7

3 0 9 9

3 6 0 0

4 1 0 0

4 6 0 0

5 0 9 8

5 5 9 4

6 5 8 5

7 5 7 2

8 5 6 1

9 5 4 2

1 0 5 3 1

1 1 5 1 4

I

7 3 8

1 1 3 4

1 4 9 8

1 8 6 3

2 1 9 4

2 6 0 5

2 9 3 1

3 2 5 6

3 5 8 2

3 9 0 8

4 5 5 9

5 2 1 0

5 8 6 2

6 5 1 3

7 1 6 4

8 4 6 7

9 7 7 0

1 1 0 7 3

1 2 3 7 5

1 3 6 7 8

1 4 9 8 1

1 6 2 8 4

1 7 5 8 6

1 8 8 8 9

2 0 1 9 2

2 1 4 9 4

II

2 6 9 5 8

3 8 1 2 5

4 6 6 9 3

5 3 9 1 6

6 0 2 8 0

6 6 0 3 4

7 1 3 2 5

7 6 2 4 9

8 0 8 7 4

8 5 2 4 9

9 3 3 8 6

1 0 0 8 6 8

1 0 7 8 3 3

1 1 4 3 7 4

1 2 0 5 6 1

1 3 2 0 6 8

1 4 2 6 5 0

1 5 2 4 9 0

1 6 1 7 5 0

1 7 0 4 9 9

1 7 8 8 2 1

1 8 6 7 7 2

1 9 4 3 9 9

2 0 1 7 3 7

2 0 8 8 1 8

2 1 5 6 6 5

III

98 2

1 4 7 6

1 9 5 2

2 4 0 8

2 8 3 3

3 2 6 6

3 6 6 1

4 0 5 6

4 4 4 9

4 8 4 2

5 6 2 5

6 4 0 6

7 1 8 7

7 9 6 5

8 7 4 0

1 0 2 8 9

1 1 8 3 0

1 3 3 7 6

1 4 9 0 9

1 6 4 5 4

1 7 9 8 9

1 9 5 3 7

I

1 1 6 8

1 7 7 1

2 3 4 2

2 9 1 3

3 4 2 9

4 0 7 0

4 5 7 9

5 0 8 8

5 5 9 6

6 1 0 5

7 1 2 3

8 1 4 0

9 1 5 8

1 0 1 7 6

11193

1 3 2 2 8

1 5 2 6 4

1 7 2 9 9

1 9 3 3 4

2 1 3 6 9

2 3 4 0 4

2 5 4 4 0

2 7 4 7 5

2 9 5 1 0

3 1 5 4 5

3 3 5 8 0

II

4 2 1 2 0

5 9 5 6 8

7 2 9 5 5

8 4 2 4 1

9 4 1 8 5

1 0 3 1 7 4

111441

1 1 9 1 3 6

1 2 6 3 6 2

1 3 3 1 9 8

1 4 5 9 1 1

1 5 7 6 0 2

1 6 8 4 8 3

1 7 8 7 0 4

1 8 8 3 7 0

2 0 6 3 4 9

2 2 2 8 8 3

2 3 8 2 7 2

2 5 2 7 2 5

2 6 6 3 9 6

2 7 9 3 9 8

2 9 1 8 2 2

3 0 3 7 3 8

3 1 5 2 0 4

3 2 6 2 6 7

3 3 6 9 6 7

III

1 5 5 9

2 3 4 3

3 0 9 7

3 8 2 1

4 4 9 6

5 1 8 4

5 8 1 1

6 4 3 7

7 0 6 0

7 6 8 4

8 9 2 8

1 0 1 6 7

1 1 4 0 6

1 2 6 4 1

1 3 8 7 1

1 6 3 2 9

1 8 7 7 5

2 1 2 2 9

2 3 6 6 1

2 6 1 1 3

I

1 8 4 5

2 8 1 1

3 7 1 6

4 6 2 2

5 4 4 4

6 3 7 6

7 2 6 0

8 0 6 6

8 8 7 3

9 6 8 0

1 1 2 9 3

1 2 9 0 7

1 4 5 2 0

1 6 1 3 3

1 7 7 4 7

2 0 9 7 4

2 4 2 0 1

2 7 4 2 7

3 0 6 5 4

3 3 8 8 1

3 7 1 0 8

4 0 3 3 4

4 1 9 4 8

II

6 6 8 4 8

9 4 5 3 8

1 1 5 7 8 5

1 3 3 6 9 7

1 4 9 4 7 8

1 6 3 7 4 6

1 7 6 8 6 5

1 8 9 0 7 7

2 0 0 5 4 7

2 1 1 3 9 4

2 3 1 5 7 1

2 5 0 1 2 5

2 6 7 3 9 5

2 8 3 6 1 5

2 9 8 9 5 7

3 2 7 4 9 1

3 5 3 7 3 1

3 7 8 1 5 4

4 0 1 0 9 3

4 2 2 7 9 0

4 4 3 4 2 5

4 6 3 1 4 2

4 8 2 0 5 4

III

2 3 3 0

3 5 0 0

4 6 2 8

5 7 0 9

6 7 1 7

7 7 4 5

8 6 8 2

9 6 1 7

1 0 5 4 8

1 1 4 8 1

1 3 3 3 9

1 5 1 9 0

1 7 0 4 1

1 8 8 8 7

2 0 7 2 4

2 4 3 9 6

2 8 0 5 2

3 1 7 1 8

3 5 3 5 2

I

2 7 7 3

4 2 0 0

5 4 3 1

6 9 0 7

8 1 3 4

9 5 2 6

1 0 8 2 0

1 2 0 2 3

1 3 2 2 5

1 4 4 2 7

1 6 8 3 2

1 9 2 3 6

2 1 6 4 1

2 4 0 4 5

2 6 4 5 0

3 1 2 5 9

3 6 0 6 8

4 0 8 7 7

4 5 6 8 7

5 0 4 9 6

II

9 9 8 7 6

1 4 1 2 4 6

1 7 2 9 9 0

1 9 9 7 5 2

2 2 3 3 2 9

2 4 4 6 4 5

2 6 4 2 4 7

2 8 2 4 9 2

2 9 9 6 2 8

3 1 5 8 3 5

3 4 5 9 8 0

3 7 3 7 0 1

3 9 9 5 0 4

4 2 3 7 3 8

4 4 6 6 5 9

4 8 9 2 9 0

5 2 8 4 9 4

5 6 4 9 8 4

5 9 9 2 5 6

6 3 1 6 7 1

III

29 4

43 5

59 0

72 8

85 7

1 0 1 7

1 1 4 5

1 2 7 2

1 3 9 9

1 5 2 6

1 7 8 0

2 0 3 5

2 2 8 9

2 5 4 4

2 7 9 8

3 3 0 7

3 8 1 6

4 3 2 4

4 8 3 3

5 3 4 2

5 8 5 1

6 3 6 0

6 8 6 8

7 3 7 7

7 8 8 6

8 3 9 5

8 9 0 4

9 4 1 2

9 6 6 7

1 0 4 3 0

II

1 0 5 3 0

1 4 8 9 2

1 8 2 3 9

2 1 0 6 0

2 3 5 4 6

2 5 7 9 3

2 7 8 6 0

2 9 7 8 4

3 1 5 9 0

3 3 2 9 9

3 6 4 7 7

3 9 4 0 0

4 2 1 2 1

4 4 6 7 6

4 7 0 9 2

5 1 5 8 7

5 5 7 2 0

5 9 5 6 8

6 3 1 8 1

6 6 5 9 9

6 9 8 5 0

7 2 9 5 6

7 5 9 3 4

7 8 8 0 1

8 1 5 6 7

8 4 2 4 2

8 6 8 3 4

8 9 3 5 2

9 1 8 0 0

9 4 1 8 5

III

4 4 8 8

5 8 7 7

7 2 6 2

8 6 4 4

1 0 0 1 3

1 1 3 8 2

1 2 7 4 4

1 4 0 9 9

1 5 4 6 0

1 6 8 1 2

1 9 5 1 1

2 2 2 0 4

2 4 8 8 9

2 7 5 6 8

3 0 2 3 0

3 5 5 7 9

I

6 4 7 0

9 0 1 8

1 1 2 7 2

1 3 5 2 7

1 5 7 8 1

1 8 0 3 6

2 0 2 9 0

2 2 5 4 5

2 4 7 9 9

2 7 0 5 4

3 1 5 6 3

3 6 0 7 1

4 0 5 8 0

4 5 0 8 9

4 9 5 9 8

5 8 6 1 6

II

1 2 6 7 9 0

1 7 9 3 0 8

2 1 9 6 0 6

2 5 3 5 8 0

2 8 3 5 1 1

3 1 0 5 7 0

3 3 5 4 5 4

3 5 8 6 1 6

3 8 0 3 6 9

4 0 0 9 4 4

4 3 9 2 1 3

4 7 4 4 0 4

5 0 7 1 5 9

5 3 7 9 2 3

5 6 7 0 2 1

6 2 1 1 4 1

III

6 2 7 8

8 2 2 2

1 0 1 5 9

1 2 0 9 2

1 4 0 0 8

1 5 9 2 3

1 7 8 2 8

1 9 7 2 4

2 1 6 2 8

2 3 5 1 9

2 7 2 9 4

3 1 0 6 3

3 4 8 1 8

3 8 5 6 6

4 2 2 9 0

I

3 5 3 6 1 7

5 0 0 0 9 0

6 1 2 4 8 3

7 0 7 2 3 5

7 9 0 7 1 2

8 6 6 1 8 2

9 3 5 5 8 3

1 0 0 0 1 8 1

1 0 6 0 8 5 2

1 1 1 8 2 3 6

1 2 2 4 9 6 6

1 3 2 3 1 1 5

1 4 1 4 4 6 9

III

125 x 200

93

6793

150 x 250

110

9503

200 x 300

155

18870

9 0 5 1

1 2 6 1 5

1 5 7 6 9

1 8 9 2 3

2 2 0 7 7

2 5 2 3 1

2 8 3 8 5

3 1 5 3 9

3 4 6 9 2

3 7 8 4 6

4 4 1 5 4

5 0 4 6 2

5 6 7 7 0

6 3 0 7 7

6 9 3 8 5

II

1 7 8 0 8 3

2 5 1 8 4 7

3 0 8 4 4 9

3 5 6 1 6 6

3 9 8 2 0 6

4 3 6 2 1 2

4 7 1 1 6 3

5 0 3 6 9 5

5 3 4 2 4 9

5 6 3 1 4 8

6 1 6 8 9 7

6 6 6 3 2 5

7 1 2 3 3 2

7 5 5 5 4 2

7 9 6 4 1 1

III

1 1 8 2 7

1 5 4 9 0

1 9 1 3 9

2 2 7 7 9

2 6 3 8 9

2 9 9 9 7

3 3 5 8 5

3 7 1 5 8

4 0 7 4 3

4 4 3 0 6

5 1 4 1 9

5 8 5 1 8

6 5 5 9 2

I

1 7 0 5 1

2 3 7 6 6

2 9 7 0 7

3 5 6 4 9

4 1 5 9 0

4 7 5 3 1

5 3 4 7 3

5 9 4 1 4

6 5 3 5 6

7 1 2 9 7

8 3 1 8 0

9 5 0 6 3

1 0 6 9 4 6

II

I

II

III

-Saturated steam in Kg/h.

- Air at 0°C and 1,013 bar in [Nm3/h].

- Water at 20°C in l/h.

Calculus according to ISO-4126-1:2004”Safety valves”.

For other, not so dense liquids, other than water at 20°C apply: V A = Water flow according to table.VL = Liquid flow.

V A = Water density at a 20°C.

VL = Liquid density.(V A=998 Kg/m3).VL =

A

L

. V A ó V A = VL. L

A

8/19/2019 496.en

8/8

Fluid

Calculation temperature °C

State at moment of dischar . l = liquid, s = steam, g = gas

Molecular mass kg/kmol

Adiabatic exponent æ Compressibility coe. Z

Density at moment of discharge kg/m3

Coefficients ψ max χ

Viscosity cSt cPs

Working pressure abs. bar

Set pressure abs. bar

External back pressure abs.

constant variable bar

Rated pressure abs. bar Discharge

capacity

Opening: Full lift / Normal / Progressive

Manufacturer type

Materials

Manual discharge action yes / no

Cover Closed / OpenBellows yes / no

Body with drainage yes / no

Diameter of narrowest flow d0 mm

Section of narrowest

flow A0

Allowed discharge coef ficient αd

Input / Output

Unit weight approx. Kg

Certificate according to EN-10204 2.2

Certificate according to EN-10204 3.1

1

2

3

4

5

67

8

9

10

11

12

13

14

15

1617

18

19

20

21

22

23

24

25

26

2728

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

l s g l s g l s g

Date:

Department:

Name:

Consultation / Bid / Order

Position N°.

N°. of units

Regulation

Required: kg/h, Nm3/h, l/h

Possible: 1) Kg/h, Nm3/h, l/h

Body

Seat

Plug

Spring

Joint

FACT LIST FORSAFETY VALVE CALCULSCalculus acording to ISO-4126-1:2004 ”Safety valves” 1)

Customer:

Theme:

Leaf: Of:

S E R V I C E C O N D I T I O N S

V A L V E C O N S T R U C T I O N

C O N N E C T I O N S

O B S E R V A -

T I O N S

A C C E P -

T A N C E

Necessary A0 mm2

Chosen A0 mm2

Flange mm

Thread inch

Welding (soldering) ends

bar

DN

PN

Shape of joint surfaces (DIN-2526)

Informative brochure, without obligation and subject to our General Sales Conditions.

89098/14

Founded in 1914

www.vycindustrial.com

Avenc del Daví, 22 Pol. Ind. Can Petit 08227 TERRASSA (Barcelona) SPAIN

+34 93 735 76 90 +34 93 735 81 35 119 [email protected]

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496.en