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Pressure Release Open Valve (GL500X)

Pressure Release Open Valve (GL500X)
Price: US $ 101-15766/Piece
Trade Terms: FOB
Min Order: 1/Set
Pay Type: T/T
Pressure Release Valve: Functioned to release the pressure in pipeline which is in excess of the safe preset value of pilot valve, and to maintain in the pressure in pipeline below a certain safe value, thus to prevent pipeline equipments from damage due to high or sudden pressure.

This valve is used to release the pressure of fire control test circulating system in high-rises to prevent the system from danger due to excessive hydraulic pressure.

Pressure holding valve: Functioned to maintain the water supply pressure at the upper stream of main valve over a certain preset value.

Emergency Open Valve: Mounted at the water outlet of fire spraying pump, it will immediately open when the pressure at pump outlet rises over a certain preset value.

1) Diaphragm type: DN50-DN350
Piston type: DN400-dn800
2) Pressure grade: PN10, PN16, PN25

Main materials:
1) Body and bonnet: Cast iron, ductile cast iron, WCB, WCA,
WCC, A351, 304, 340L, 316, 316L17-4PH
2) Disc: Brass, stainless steel, carbon steel
3) Stem: Stainless steel
Suitable MediumWater, Oil, Gas and etc.
Main materialCAST IRON,ASTM A216 WCB, WCC, WC6, SS304, SS316, CF8, ETC.
Suitable Temperature≤80
Nominal PressurePN10--PN25
Nominal DiameterDN50--DN350
Flange DimensionASME B16.5, BS4504, ISO2531, ISO7005 and other standards conforming to the requirements
Face to Face LengthAPI594,BS5155, ISO5752, DIN3352 and other standards conforming to the requirements

Prod Model: 500X
Markets: North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Certificate: ISO
Material: Cast Iron
Connection Form: Flange
Seal Surface: Wedge Gate Valve
Thread Position Of Valve Rod: Outside Gate Valve
Application: Household Usage
Established in 1985, Zhejiang Guanlong Valve Machinery Co., Ltd. is a professional manufacturer which integrating development, production, sales, installation and service into an organic whole.
Our company mainly manufactures valves according to ANSI, API, DIN, BS, and Chinese GB standards. We are specializing in producing hydraulic control valves, check valves, multifunctional pump control valves, pressure reducing valves, adjusting valves and butterfly valves. There are 6 major series and more than 1000 specifications now.
Our products are exported to worldwide, such as the USA, Canada, Europe, the Middle East and South East and Southeast Asia. With high content of technology and reliable quality, our products have gained good fame from the customers.
After nearly 20 years of development and self-perfection, our products are supported by novel design, excellent structure, elaborate workmanship, exquisite technology and complete testing measures.
We will fully exert our advantage on technology and management to improve continuously our product quality and manufacture high quality valve products to satisfy the customers.

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  • Zhejiang Guanlong Machinery Valve Co., Ltd.

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