22247308 Check Valve Non Return Valve One Way Valve for Rotary Screw Air Compressor

Product Introduction

The 22247308 check valve is a one-way flow component used in rotary screw and piston air compressor systems. It allows compressed air or fluid to move in one direction and automatically blocks reverse flow when the machine unloads or stops. A weak or leaking check valve can cause pressure loss, hard restart, backflow into the airend, and extra load on the motor—so it is a small but critical maintenance part.

Detailed Product Description

How It Works

The valve uses a spring-loaded poppet or disc. Forward pressure pushes the disc open; when downstream pressure rises or the compressor shuts down, the spring and back-pressure push the disc back onto the seat. No external power is needed—the valve reacts to pressure difference only.

Key Benefits

• Backflow Protection: Stops high-pressure air from returning into the compression chamber or upstream piping.
• Easier Restart: Keeps system pressure retained so the motor does not fight full line pressure at startup.
• System Stability: Reduces pressure swing between load and unload cycles.
• Rugged Build: Common bodies use stainless steel or alloy steel with heat-resistant seals for oil-air service.
• Also Called: check valve, non-return valve, one way valve, return valve, back pressure valve, reflux valve.