pieces 4mm straight one-way pneumatic check valve, for connecting air compressor air hose fittings

【Package】3 Pcs 4mm One Way Flow Pneumatic Check Valve, Push to Connect Air Tube Fitting for Air Compressor.

【Dual Application】: The pneumatic connector is used to connect polyethylene, nylon, and PU tubing, air hoses, and pneumatic tools. It is widely used in various industries, including automated equipment such as machinery, electronics, automotive, and packaging.

【Working Environment】: 0-8 bar. Working Temperature: 0-60°C. Applicable Tubing: PU/Nylon/PE.

【Quality Goods】These fittings are made of high-quality plastic, durable and leak-proof for long-term use. With an integrated stainless steel locking claw and NBR O-ring, you'll never have to worry about the tubing falling off. High pressure resistance; can withstand high pressure without triggering, so there's no need to trigger it. 【Easy to Install】 No additional sealing is required; simply press to connect to the tube and they are securely joined. The elliptical release rings at both ends make disassembly more convenient without additional tools. Furthermore, these fittings are flexible and compact, rotating freely through 360 degrees.