Excess Flow Valves

You can stop the uncontrolled release of system media when a downstream fluid system line breaks with our Swagelok excess flow valve. When the system pressure equalizes through the bleed vent, the spring automatically resets the poppet to the open position.

Flow through the bleed vent of a standard XS Flow valve is less than 1% of the flow rate in the trip range.

We offer these valves in 3 sizes, 1/4”, 3/8” and ½” and in a wide variety of end connections. Optional O-Ring materials are available too.

Swagelok products and assembly work are backed by our Limited Lifetime Warranty.

Shop Excess Flow Valves for Your Application

Questions? Email or call 866.901.0151.

Browse Our Excess Flow Valves Catalog