The valve features an adjustable spring that does not require diaphragms or pilots, making it suitable for the crude oil industry—especially for Lease Automatic Custody Transfer (LACT) skids. Most ...

Since 1958, Check-All Valve® Mfg. Co. has manufactured a complete line of spring-loaded piston-type check valves, also known as silent check valves. We service customers all over the world in the ...

THE 3DV TRIPLE DUTY VALVE includes a calibrated balance valve, a spring loaded check valve and a shut-off valve — all the valves needed to balance systems for smaller pump applications. It is ...