Piston Check Valves

Designed to prevent backflow, the M & J Valves Piston Controlled Check Valve is silent in operation and has no flapper to hammer against the seat. The patented "floating piston" rides up and down in the cylinder with flow surges. As flow pressure is reduced, the piston softly settles on the seat to prevent backflow. Opening and closing actions are positively controlled to minimize pulsation and to eliminate chattering.

Available in line sizes 1" - 20", class 150-2500.

Piston Check Valve: Installation, Operation, and Maintenance Manual

Link to all M&J Valve Product Literature