CO Series

Parker | Check Valves

> Suitable for applications requiring high integrity leak rates and re-sealing capabilities
> Seal integrity to 4 x 10-9 std. atm-cc/sec
> Back stopped poppet to minimize spring stress
> Cracking Pressures: 1⁄3, 1, 5, 10, 25, 50, 75 and 100 psi (.023, .069, .345, .69, 1.72, 3.45, 5.17, 6.9 bar)
> Available with highly fluorinated fluorocarbon rubber
> Only check valve with published helium leak rate