Swing type wafer check valves are used mainly on larger pipeline sizes, typically above DN125, because on smaller pipelines the pressure drop, caused by the disc 'floating' on the fluid stream, becomes significant. Furthermore, there are significant cost savings to be made by using these valves on larger sizes, due to the small amount of material required for the construction of the valve.
» Sizes Ranges from 1/2” thru 24”.
» Structured in One Piece Casted or Forged Union Body
» Pressure Ratings from Class 150 to Class 600, PN16 to PN110

Swing Wafer check valves are becoming the preferred type of check valve for most applications, due to their compact design and relatively low cost. The following is a list of some of their most common applications:
» Boiler feedlines » Steam traps » Hot water circuits » Vacuum breakers
» Blending » Pipeline fitting protection » Multiple boiler applications
» Blowdown vessels » Flash vessels