Please select model base on Cracking Pressure (PSI) in below tables
1. NPT connection type.

* Differential Pressure at which valve opens and flow occurs.
† WSSCVQF is a special design check valve for use on the inlet side of
the PMPT & PMPNT Pumps. It is center-guided and contains no spring .
Used for increasing fill rate of pump.
2. Socket Weld (SW) connection type.

* Differential Pressure at which valve opens and flow occurs.