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Zhejiang Guanlong Machinery Valve Co., Ltd.

Pressure Release Valve, Pressure Sustain Valve, Pressure Holding Valve manufacturer / supplier in China, offering Safety Pressure Relief / Sustaining Valve (GAX742X) with Pilot, API Swing Check Valve (H44) Non Return CS Ss Bronze, Temperature Control Valve (TEVX) and so on.

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Supplier Homepage Product Hydraulic Control Valve Pressure reducing valve/ Pressure relief valve Safety Pressure Relief / Sustaining Valve (GAX742X) with Pilot

Safety Pressure Relief / Sustaining Valve (GAX742X) with Pilot

FOB Price: US $25-600 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $25-600/ Piece
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Port: Ningbo, China
Production Capacity: 2000PCS/Month
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: GAX742X
  • Temperature: Ordinary Temperature
  • Pressure: Adjustable
  • Structure: Diaphragm/ Piston
  • Certificate: ISO, Ce
  • Trademark: KARFAR
  • Specification: ISO9001: 2000
  • Certification: ISO, CE
  • Connection: Flange
  • Closed: Closed
  • Material: Ci, Di, CS, Ss etc
  • Pressure Rating: Pn10,Pn16,Pn25 (1.0MPa, 1.6MPa, 2.5MPa, Cl150~300)
  • Transport Package: 1. Inner: Plastic Package 2. Outer: Plywood Case
  • Origin: China
Product Description
Safety Pressure Relief / Sustaining Valve

Safety Pressure Relief / Sustaining Valve (GAX742X) with PilotSafety Pressure Relief / Sustaining Valve (GAX742X) with Pilot
                Diaphragm Type                                                                         Piston Type

Size:  DN50-DN800
Pressure Grade:  PN10  (Range of Adjustment 0.3-0.9Mpa)
                              PN16  (Range of Adjustment 0.5-1.4Mpa)
                              PN25  (Range of Adjustment 0.5-2.4Mpa)

Δ The KARFAR model GAX742X safety pressure relief / sustaining valve is popularly used in pipeline system of high-rise buildings, mining industry, pharmaceuticals and foodstuff industry etc. It quickly response & release in response to pressure wave. It prevents damage on the pipeline and equipment from rapid pressure increase. 
It is especially suitable for fireman system of high-rise buildings to release over pressure. It can also be installed behind reducing valves to maintain a safe and normal pressure. 
Δ It can maintain a precise stable safe pressure.
 In case of excessive pressure, the valve will be fully opened for pressure release; The closing speed is adjustable; The actuator Diaphragm/piston extremely minimizes the lagged operation; This valve can be mounted at any location in the same system without changing the preset pressure of the pilot; Maintenance and examination on the valve can be done without disassembling it from pipeline.
Medium applicableWater, Oil etc.
Main materialCast iron, Ductile iron, Carbon steel, Stainiless steel etc.
Temperature applicable≤80ºC
Nominal PressurePN10--PN25
Nominal DiameterDN50--DN800
Flange DimensionASME B16.5, BS4504, ISO2531, ISO7005 and other standards 
Face to Face LengthAPI594,BS5155, ISO5752, DIN3352 and other standards 

Safety Pressure Relief / Sustaining Valve (GAX742X) with Pilot

please specify whether you need Diaphgram type or Piston type.
We also manufacture as per your request or drawing.
We welcome your comments and inquiries.
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Safety Pressure Relief / Sustaining Valve (GAX742X) with Pilot
Safety Pressure Relief / Sustaining Valve (GAX742X) with Pilot
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