In Line Check Valves

Stop hydraulic fluid from flowing backward with simple, reliable check valves. These one-way valves install directly in your hydraulic lines to protect pumps, hold loads, and prevent system damage.

One-Way Check Valves for Hydraulic Protection

In-line check valves work like a door that only swings one way. Fluid pushes through in the right direction, but if it tries to flow backward, the valve slams shut. It’s that simple, and that reliability makes check valves essential safety devices in every hydraulic system. They protect pumps from reverse flow damage, keep cylinders from creeping down, and prevent fluid from draining back through idle circuits.

Our in-line check valves handle everything from tiny pilot lines to main system flows up to 50 GPM. The inline design means they install anywhere – just cut your hydraulic hose and add the valve between sections. No special mounting, no manifolds, no complicated plumbing. Choose from brass bodies for standard duty, steel for high pressure, or stainless when corrosion is a concern.

We stock check valves with different cracking pressures from 1 PSI to 65 PSI, letting you fine-tune when they open. Standard NPT and SAE threads fit your existing fittings. Spring-loaded ball and poppet designs give you reliable sealing with minimal pressure drop when open.