5" 6" 12" Double Disc Wafer Swing Check Valve , DIN or ANSI Check Valves for Pipeline DN50

5\" 6\" 12\" Double Disc Wafer Swing Check Valve , DIN or ANSI Check Valves for Pipeline DN50

Size : DN50-DN900.

Design standard : API609, BS5155 , BS5153.

Face to Face : SPI598 , ISO5752 Series16 , BS5155.

Tubing flange : BS,DIN ,ANSI,JIS,ASE ,BS10D,BS10E,UNI.

Inspection and test : API598.

Check Valve\'s Application:

Check valve is used for preventing the back-gone of medium in pipelines and equipments , It will open and close automatically by the pressure of medium . When the medium is back-going,The disc will close to avoid accidents.