DS / Z64H Pipeline Cast Steel Gate Valve Water Sealed by Flange and Welding

1.The?chamber?of?packing?of?the?valve\'s?bonnet?is?of?a?water-sealed?structure, which, when?the?water?of?0.6-1MPa?

pressure?goes?into?the?mouthpiec, can?make?the?system?isolated?from?air?to?ensure?the?system?with?

a?good?leak?proofness

2.Model?S/Z?series?use?dual-gate?dual-direction?elastic?sealings.being?flesible?and?

fast?to?open?and?close, reliable?sesling

3.Simple, compact?and?reaso?able?structur, easy?to?overhaul?and?long?duration

4.When?to?be?used?as?the?open&close?device?on?pipelines, it?must?be?in?fully-opened?or?fully-closed?

state?and?unallowed?to?be?used?for?flow?adjustment

5.Two?ways?of?connection:by?flange?and?welding, two?driving?ways:manually?and?electrically

6.Suitable?to?act?as?the?open?&?close?device?for?the?pipelines?with?the?working?medium?of?water,

steam, oil?goods?and?non-corrosive?gas, especially?for?the?vacuum?condensation?system?of?the?

steam?tufbine?in?steam?power?palnts

Chief?property?and?specification

PN(MPa)Nominal?pressure

PN(MPa)Nominal?pressure

?(MPa)Shell?strength?test

1.0

1.6

2.5

4.0

6.4

10.0

?(MPa)Seal?test

1.5

2.4

3.8

6.0

9.6

15.0

?(MPa)Back?seal?test

1.1

1.8

2.8

4.4

7.0

11.0

Leak-proofness?test

1.1

1.8

2.8

4.4

7.0

11.0

Applicable

Produect?classification

℃?Working?remperature

Suitable?medium

?(C)Carbon?steel

≤425

Water.steam.

oil?goods.

non-corrosive?gas

(I)Alloy?steel

≤540

Material?for?main?parts

Product?type

Part?name

Body.bonnet.

yoke

stem

Walge?gate?disc?

seal?face

Seatring?

seal?face

Yoke?

nut

Packing

(C)Carbon?steel

WCB

1Cr13?or?2Cr13

Cr13?Sainless?steel?

or?carbide?alloy

Stainless?steel

Al?bronze

Flexible?graphite

?(I)Alloy?steel

WCB?Cr5Mol

20Cr1Mo1VA

Co-based?alloy

Carbide?alloy