XCMG Air Compressor Special Valve (Unloader/Discharge) – OEM Ref. 800787141 / DL1113A

This Air Compressor Valve Assembly (PN 800787141 / Model DL1113A)​ is a critical flow-control component purpose-built for XCMG air compressors serving the machine's brake and auxiliary pneumatic circuits. Functioning as an unloader, discharge, or pressure-relief element within the compressor head, it governs the timing and direction of pressurized airflow while preventing dangerous over-pressurization or reverse flow that can lead to pump damage, air dryer failure, or compromised braking performance. The valve body is machined from high-strength alloy steel or brass with precision-lapped seating surfaces, paired with a heat-treated stainless-steel spring calibrated to the exact OEM cracking pressure—ensuring consistent opening/closing behavior across millions of cycles. Each unit is individually bench-tested for leak-tightness and pressure-holding capability before shipment, and ships ready to install with standard OEM gasket interfaces—no custom adapters, thread sealants, or port modifications needed. Replacing a sticking or leaking valve at the first sign of slow pressure build-up or audible air loss restores proper compressor efficiency, protects downstream air-system components, and keeps your XCMG equipment's brake system operating safely within design parameters.