Connectors – Check Valve
Check valves block the flow of media in one direction while permitting flow in the other. The prevention of back flow can be an integral part of a circuit to maintain pressure, hold actuator position or to protect devices from reverse flow. Additionally, it can restrict potential contaminants from entering the upstream systems.
Standard SMC check valves are available in both threaded and One-touch configurations to create a uni-directional flow path. Threaded models are available up to 1" size and 725 psi (5.0 MPa) operating pressure. One-touch models can accommodate tubing from 5/32"/4mm to 12mm or 1/2"
SMC pilot check valves permit flow in one direction and only allow reverse flow if supplied with an appropriate pilot signal. They are available in thread sizes up to 1", and many configurations integrate One-touch connections for installation convenience. The several ASP series models integrate a speed control function for additional versatility.