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1 Inch Water Pressure Relief Valve JIS Spring Loaded Self Actuated

Shanghai kangquan Valve Co. Ltd.
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Shanghai kangquan Valve Co. Ltd.

1 Inch Water Pressure Relief Valve JIS Spring Loaded Self Actuated

Country/Region china
City & Province shanghai shanghai
Categories Valves
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Product Details

1 Inch Water Pressure Relief Valve JIS Spring Loaded Self Actuated 

 

 

 

These shall be of the diaphragm type or axial flow type or equivalent and either spring-loaded self actuated or pilot operated. The gas shall be vented safely through remote vents. The vent stacks shall be fitted with weather cap of the blow of type.  

 

Capacity : 2000 Nm3/hr
Medium: Feed Gas as per below gas composition

Pipe Size : 4”
Flanged connection ratings 150 # WNRF
Operating pressure : 2 barg
operating temp : 60 deg C
Design temp : 90 deg C
Design pressure : 4 barg
Set Pressure 4 barg
Back pressure : N.A
Relieving Temp : 80 deg C
MOC: Carbon Steel

Sizing for PCV failure

Gas property of Methane

 

PRVS FOR P305A/B
Ø  Body Material: Carbon Steel
Ø  Trim material:  stainless steel
Ø  Inlet rating and connection – 2”X150#
Ø  Outlet rating and connection – 2”X150#
Ø  Orifice area – F
Ø  Operating pressure – 10Kg/cm2
Ø  Set pressure – 15Kg/cm2
Ø  Fluid – LUBE OIL
Ø  Temperature: 45oC

 

 

Pressure Relief Valve, Body Material: Carbon Steel,  Trim material:  stainless steel

 

 

 

The valve instantly opens when the pressure in the pipeline exceeds the preset safe level, thus relieving excessive pressure from the pipeline. When the pressure returns to normal, the valve closes slowly, at an adjustable speed. The valves also can be used to sustain upstream pressure to a preset pressure value.

 

 Explanation of materials for main parts
NO.Name of partA21H-C/A21F  KA21Y-C MaterialsA21W-P/A21F-P  KA21Y-P MaterialsA21Y-R    Materials
1   Union201Cr18Ni9Ti1Cr18Ni12Mo2Ti
2 Union nut352Cr131Cr18Ni9Ti
3  Nozzle351Cr18Ni9Ti1Cr18Ni12Mo2Ti
4  Body2Cr131Cr18Ni9Ti1Cr18Ni12Mo2Ti
5  Disc2Cr13/2Cr13+PTFE1Cr18Ni9Ti/1Cr18nI9Ti+PTFE1Cr18Ni12Mo2Ti
6   Spring washer2Cr131Cr18Ni9Ti1Cr18Ni12Mo2Ti
7  Spring50CrVA50CrVA Coated Teflon50CrVA Coated Teflon
8 Locking nutQ235-A2Cr131Cr18Ni9Ti
9 Spring guide2Cr131Cr18Ni9Ti1Cr18Ni12Mo2Ti
10 Adjusting nutQ235-A2Cr131Cr18Ni12Mo2Ti
  Sealing surface of material"Y" Co Depositing stellite, "H" D507 Depositing D507, "W" body

 

 Dimensions (mm)
Type(DN)dodDoMd1D1LL1H

Nominal 

diameter

KA21Y-16C A21H-16C A21H-4015121520M27    1.5G1/2"30357666
A21W-16P A21W-40P KA21Y-16P20162025M33    1.5G3/4"34408768
 25182531M39    1.5G1"4050100105
A21Y-6415101525M39    1.5G1"445010066
A21Y-64P A21Y-10020102031M39    1.5G1"445010068
A21Y-100P25122531M39    1.5G1"4450100105
A21W-16015820/M24    2G1"4450100261
/160P20825/M33    2G1"4450100261
 25828/M36    2G1"4450100285

 

 

 

 Explanation of materials for main parts
NO.Name of partA28H MaterialsA28Y-P MaterialsA28Y-R8       Materials
1  BodyHT200ZG1Cr18Ni9TiCF8M
2  Nozzle35ZG1Cr18Ni9TiCF8M
3   Adjusting ring2Cr131Cr18Ni9Ti316
4  Disc2Cr131Cr18Ni9Ti316
5  Spring50CrVA50CrVA Coated Teflon50CrVA Coated Teflon
6  Stem2Cr132Cr13316
7 Adjusting bolt452Cr13316
8   CapZG200-400ZG200-400CF8M
 Sealing surface of materialD507Co
Depositing D507Depositing stellite
10 Adjusting nutQ235-A2Cr131Cr18Ni12Mo2Ti
  Sealing surface of material"Y" Co Depositing stellite, "H" D507 Depositing D507, "W" body

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