Three-way brass external thread air compressor one-way check valve central pneumatic brass connector fitting 1/8 x 3/8 x 1/2

The permanent valve closes when the compressor head discharges. This air compressor check valve is installed via a threaded connection, allowing for quick and easy installation without tools. Its removable design makes internal cleaning very convenient and efficient. This one-way check valve can withstand high temperatures and pressures, making it an excellent replacement for old or damaged air compressor check valves. It is an outstanding choice for air compressor accessories. The check valve features a three-way external thread design, offering pressure resistance, corrosion resistance, high performance, high reliability, and strong sealing. Three external thread interfaces are used to connect to the air pipe; two internal thread interfaces are used to connect to the pipeline; and one external thread interface is used to connect to the air pressure vessel and compressor piston pump. If the check valve does not close when the compressor is turned off, it must be replaced to allow air to flow back to the compressor head. This check valve is compatible with G1/2*3/8*10=20*16*10mm threads and can be used with 2, 5, 3, 4, and 5P type small piston air pumps and oil-immersed piston air compressors.