Reliable Brass Check Valve — Direct Replacement for Air Compressors Why you need this valve Restores proper compressor function by replacing worn or defective check valves that allow backflow or reduced pressure. Prevents air leakage and protects the compressor pump and tank from reverse flow, improving system reliability and uptime. Simple, durable solution for maintenance and quick repairs. Key features and benefits Function: Single-direction (check) valve designed specifically as a replacement part for air compressors and associated tanks and piston pumps. Compatibility: Three external male threaded connections (G1/2, G3/8, G1/8) for straightforward connection to common air tanks, fittings and compressor piston pump outlets. Easy installation: Threaded connection ends allow fast screw-in replacement with standard tools—no adapters or special machining required in most setups. Material and durability: Solid brass construction provides excellent resistance to pressure, wear and corrosion for long-term, reliable performance. Performance: Designed to maintain airtight sealing and resist backflow under normal compressor operating conditions. Practical applications Home workshop: Replace a failed check valve on a portable piston compressor to quickly restore pressure retention for air tools and tire inflation. Automotive service: Install on air tanks and compressor heads in small repair shops to prevent pump overrun and extend pump life. Industrial maintenance: Use as a spare part during scheduled maintenance of compressor systems to ensure continuous, safe operation. What you get A robust brass check valve with G1/2, G3/8 and G1/8 male threads, ready to install as a direct replacement for many common compressor setups. Installation tips Confirm thread size and orientation on your compressor or tank before installation. Use appropriate thread sealant or tape rated for compressed air to ensure a leak-free connection. Tighten to manufacturer-recommended torque for your fittings; avoid over-tightening to prevent thread damage. This check valve is a straightforward, reliable replacement to keep your air compressor system functioning correctly and protect downstream components from reverse airflow.