The Damond Motorsports check valves come pre-assembled and sealed in the configurations you need. We use very low cracking pressure valves, to ensure a smooth effortless operation.
The 3/8" barbed valves use a push-lock style fitting, where no hose clamp is needed.
The 5/8" barbed valves use plastic 90° fittings, and straight brass barbed fittings. These are standard barbs, so hose clamps are recommended, and can be purchased here. Since the straight 5/8" barb on both ends is commonly used for low pressure crankcase venting, we modify the valve by removing the spring, to make it a true 1-way valve, with next to no cranking pressure.
All of our OCC kits in different Stages come with check valves included. However, if you're needing more for a custom set-up, or to add one on your existing set-up, there is now an option. If you need a custom size not offered here, please contact us for a quote.
Great one way valve very sensitive
Doesthe job on catch can spot on
Another great product from Damond motorsport
10's across the board, customer service, pricing, shipping all excellent
Super fast shipping and amazing product!
Great products and service, can’t wait till I order the tmm and pmm for my speed.
Nice piece of quality check valve. Very good and cheap