H42W type vertical check valve

One. Structure and characteristics

　H42 vertical check valve is designed and manufactured strictly in accordance with API6D and GB/T12235 standards. This series of valves are normally closed. Due to the pressure of the medium at the inlet of the pipeline, the valve opens by overcoming the spring resistance. When the medium pressure at the inlet end is lower than that at the outlet end, the spring pushes the valve core to the valve seat to close the valve, preventing the medium from flowing back, so it acts as a check.

Two, application specifications

1. Design and manufacture according to 12236-89

2. The length of the structure is in accordance with SDV company regulations

3. Flange type and size JB/T79 94

4. Valve inspection and test are in accordance with API STD 598

Third, the main material

  CF8, cF3, CFSM, CF3M WC6