|Design standard:||API 594|
|Length of structure:||API 594|
|Pipe flange:||ASME B16.5|
|Wall thickness:||ASME B16.34|
|Inspection and test:||API 598|
|Pressure and temperature rating:||ASME B16.34|
|Product scope:||NPS 1/2″~NPS 36″,CL150~CL2500|
|Main body material:||WCB, LCB, WCC, WC6, WC9, CF8, CF8M, CF3, CF3M, A890 4A, A105, LF2, F11, F22, F51, F91, F304, F316, F304L, F316L etc.|
API 594 Check Valve
The main purpose of the dual plate wafer check valve is to perform the work of almost any conventional valve. However, being smaller makes it lighter and, therefore, is more cost efficient to purchase, install and maintain. It is also a silent check valve; because of it’s innovative design, it does not slam upon closing.
The dual plate wafer check valve plate design and flat seat offer many advantages. The flat seat eliminates any possibility of board snaps in the seat, which snaps occur frequently in other valves. When suspended in a vertical pin, the two plates have a reduced weight which eliminates excessive wear on the plate lugs. This wear can cause the plate to collapse on the seat’s open surface, causing the valve to subsequently fail.