An air compressor check valve has only one function: to let air flow from one side to the other, while blocking air flow in the opposite direction. If you hold the check valve in your hand and would blow on …

Prevent air from escaping an air storage tank when the air compressor is not running. These valves install on the inlet of a tank. They open to allow airflow into the tank and close when flow stops or …

Jan 11, 2019 · Air compressor check valves can cause problems with your compressor. Learn about the check valves types, their functions, locations, and how to troubleshoot them.

Jul 30, 2022 · Where is a check valve located in an air compressor? The check valve is located at the air tank's inlet, where it connects the discharge line from the compressor pump, allowing air in but …

Jan 9, 2025 · Discover the essentials of air compressor check valves, including their types, functions, and maintenance tips for optimal performance. Learn how these crucial components ensure …

Nov 12, 2025 · Is your air compressor struggling to restart? Discover how to diagnose a failing check valve and replace this critical component safely.

Dec 9, 2025 · A check valve for air compressor is a mechanical device that ensures air flows in only one direction. It allows compressed air to move from the pump to the tank, but it physically blocks air from …

Jun 6, 2025 · Begin by shutting off the electricity and draining the air tank. Next, disconnect the pressure switch and outlet pressure tube. Apply thread sealant to the fittings that connect the new check valve …

Mar 9, 2025 · This small but vital component prevents air from escaping back into the tank when the compressor shuts off. Without a functioning check valve, you could experience pressure loss and …

Aug 5, 2019 · This step-by-step repair guide gives instructions for replacing the check valve on an air compressor. The check valve stops compressed air from flowing back into the pump from the tank.