Check Valve
The purpose of the valve is to allow unrestricted flow in one direction and restricted flow in the opposite direction. They are installed for separate services connected to the public system to avoid backflow into the pipes of each material and to prevent contamination. These valves are sometimes used to prevent a sudden rise in system pressure, making the pressure on the low pressure equipment connected to the system greater than its design limit.
Technical information:
According to the basic design of API 602 and ANSI B16.34.
Forging / piston design (standard).
Provide welding caps.
Check and test according to API 598.
OS& Y design.
Dimensions range from 1 / 2 inches to 2 inches.
It is available in NACE Mr 0175.
Available in fire safe API 607
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