One-piece check valve made from bar stock with ASME/ANSI B16.11 socket weld ends. Designed for minimal pressure drop many sizes offering pressure ratings up to 5000 PSI at 100 degrees F.
.125 PSI springs are not recommended for installations with flow vertical down.
Seat materials other than “metal-to-metal” have a maximum pressure rating of 1500 PSI. “Metal-to-Metal” and PTFE seats are not resilient. See allowable leakage (New window will open).