Fix Air Compressor Check Valve

The check valve stops compressed air from flowing back into the pump from the tank.

Fix air compressor check valve. Air compressor check valves does your air compressor fill up the tank but when it tries to restart it stalls and then kicks the breaker. Air compressor check valve troubleshooting. If this valve is leaking air back from the tank it can cause the problem you are having. If there is a reverse flow occurring the job of the check valve is to stop that flow.

If the check valve is stuck open high air pressure from the tank flows back into the pump head. Air compressors have valves in the top of their pumps that let air in or ou. There are two ways to fix the problems caused by a. Does your air compressor have no pressure or is your pump slow to build pressure.

Air compressor repair can be simple. The check valve is one of the most common parts that fails on a compressor. This category has a full line of common compressor repair parts including pressure switches check valves relief valves air tank moisture drains air pressure gauges unloader control valves pilot valves throttle control cables and valves belts and pulleys. Now it s time to learn about how you can fix an air compressor tank check valve.

This step by step repair guide gives instructions for replacing the check valve on an air compressor. Port 3 is where the air from the compressor pump escapes from the tank check valve and into the compressor tank. While air is being pumped into the compressor tank through the port 1 the unloader valve is shut so the compressed air cannot flow along the air line attached to port 2 and escape to atmosphere. The air compressor unloader valve is what makes the psssssst sound when the motor shuts off after reaching operating pressure.

It s actually venting the residual pressure from the compressor head so the motor doesn t have to work as hard on the next startup. Although they can take many shapes and forms the principle is mostly the same. Air compressor check valves are actually pretty simple parts. Inside the air compressor check valve you will find a disc or ball ball mostly on smaller check valves and spring that pushes down on the disc or ball.

Most check valves are stone simple and cheap to replace. Before you dive into the unloader you should check the check valve between the pump and tank.