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[Province: Zhejiang ]   
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Direct acting piston type pressure reducing valve
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Direct acting piston type pressure reducing valve

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Basic Info.
  • Power: Others 
  • Standard or Nonstandard: Standard 
  • Pressure: Low Pressure 
  • Structure: Pressure Reducing 
  • Material: Casting 
  • Temperature of Media: Normal Temperature 
  • Media: Others 
  • Place of Origin: Zhejiang  
  • Means of Transport: Ocean, Air, Land
Supply Capacity

Product: GAY42X Direct acting  piston type pressure reducing valve.
Pressure Rating: 1.0- 6.4Mpa
Specification: DN20-400
Material: Steel, CF8
Standard flanges: DIN, ANSI, JIS;
 
Structural Characteristic&Purpose.

This series pressure reducing valve is a new type regulating valve which adopts piston to replace the diaphragm. The performance is reliable and it's can be used for a long time. The down pressure can be adjusted according to the requirement, and it can be set at a fixed pressure in the application, which won't be changed as the fluctuation of the up pressure and the flowing rate.
 
Main Technical Parameters&Indexes Of Performance. 
 

Nominal pressurePN1.6MpaPN2.5MpaPN4.0MpaPN6.4Mpa
Tested pressure of shell2.4Mpa3.75Mpa6.0Mpa9.6Mpa
Sealing test pressure1.6Mpa2.5Mpa4.0Mpa6.4Mpa
Maximum upstream pressure1.6Mpa2.5Mpa4.0Mpa6.4Mpa
Pressure range of outlet0.2-1.0Mpa0.2-1.6Mpa0.2-2.5Mpa0.5-3.5Mpa
Minimum differential pressure0.2Mpa0.2Mpa0.2Mpa0.4Mpa
MediumSteam, water, etc.
Operating temperature425


*the shell test does not include membrane and top cover.
Material Of Main Component. 
 

Name of componentMaterial of component
Valve body, valve cover, seat coverCast iron, Cast steel
Valve seat,2Cr13
Valve flap2Cr13
Valve rod2Cr13
Cylinder sleeve2Cr13 /25(hard chrome plating)
Piston2Cr13
O-shaped ringDing nitrile rubber
Sealing encirclesDing nitrile rubber
Adjusting valve60Si2Mn

Connecting Dimension.
 

DNexternal dimension

LHH1

PN1.6, 2.5PN4.0PN6.4PN1.6PN2.5PN4.0PN6.4PN1.6PN2.5PN4.0PN6.4
2016016017022022022022090909090
251802002002552552652659595100105
32200220220255255265265100100100110
40220240240325325330330115115130130
50250270270325325330330120120135135
65260280300330330340355125125140145
80310330330340340340340135135150160
100350380380347347360360148148185185
125400450450560560565565190200200245
150450500500580580585585205210240280
200500560560630630635635220245245310
250600

750


270


300800

780


310


350850

850


390


400900

925


420




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Mr. Ellison
Tel: 86-577-57789960
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Yongjia Goole Valve Co., Ltd.
Heyi Industrial Zone,Oubei Town., Wenzhou, Zhejiang, China (Mainland)
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