Air Compressor Check Valve, Aluminum / Brass / Zinc Alloy One Way Valve

This L-type air compressor check valve is offered in three material options: aluminum alloy, brass and plated zinc alloy, being a key spare part for piston air compressors. The compact right-angle structure fits limited mounting space. Precision internal core ensures one-way air flow. After shutdown, it stops compressed air flowing back from tank to pump head, eliminating heavy startup pressure and protecting the motor against overload damage. The side vent hole cooperates with pressure switch for automatic unloading. Different materials satisfy diversified demands: aluminum alloy is lightweight and economical; brass features outstanding pressure and corrosion resistance for heavy-duty continuous work; plated zinc alloy has nice finish for economical machine assembly. All versions share unified thread dimension for direct interchange without pipe modification. Perfect for portable air compressors and inflators, ideal for OEM assembly and after-sales maintenance in workshops and outdoor service.