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Switching valves(safety valve blocks) are used to connect two safety valves to a pressure system i a pipeline. , one for operation and one for backup, so that one safety valve is in operation and the

They are designed and manufactured in accordance with the requirements of ASME Boiler and Pressure Vessel Code, Section VIII. The discharge coefficient is certified by the American National Board of

Pressure Vacuum Relief Valve is widely used for oil, petrochemicals, natural gas and other industries to protect pressure equipment.

Pilot Operated Vacuum Relief Valve can be used to maintain the pressure of the tank in the normal state and to reduce the evaporation losses of volatile liquid inside the tank.

Brief introduction of Pressure Vacuum Relief Valve Summarize Pressure vacuum valve is a kind of air breather which install on the petrochemical fixed storage tank,in order to avoid tank over the

Sensitive reaction allows the valve open rapidly when reaches the set pressure and close as the surge pressure goes down.

Jacket Relief Valve is applicable in occasions where the heat preservation of fluid is needed, like the equipment of polyester, ethylene, urea, etc.

Pilot operated pressure relief valve is a kind of pressure relief valve which is composed of main valve and pilot valve. Pilot valve senses the system pressure and controls the opening and closing of

steam relief valve is designed for high temperature and pressure condition and widely used in power boiler, drum, steam pipelines and over heaters.

Steamed Pressure Relief Valve Safety Valve has flexible thermal disc and double adjusting ring. Its disc of deigned for high temperature and pressure steam service.