Fitted upstream of the circuit to be protected, they provide total protection. By making the installation safer and more intuitive, installation costs are reduced.Parker's check valves allow compressed air to flow in one direction and prevent it from flowing in the other. MTR OUT CHECK VLV 5/32 EQUIV Markets: - Factory/Process Automation - Pneumatic - Petrochemical - Water and Beverage - Packaging - Automotive - Food Processing Features/Benefits: PLCK & VC Check Valves - Lip seals for improved sealing performance - Excellent vibration resistance - Compact - Lightweight - Symbol showing the operating direction of flow - Safe installation with color codes: Green push-button: supply version Red push-button: exhaust version Applications: - Machine tools - Assembly - Processing - Pneumatic circuits safety.