Check valves for lubrication and compressed air systems

Non-return check valves for lubrication and air systems

A check valve prevents backflow and maintains system pressure, protecting pumps, lubricators and downstream equipment from reverse flow damage. This selection covers two application areas: SKF non-return valves for automatic oil lubrication systems and Metabo brass check valves for compressed air installations.

The SKF LAPV series in 1/4 inch and 1/8 inch thread sizes is designed specifically for use with LAGD and TLSD single-point lubricators, ensuring oil reaches the bearing without draining back into the reservoir between dispensing cycles. These compact valves install directly into the lubrication line and require no adjustment once fitted.

The Metabo 1 inch brass check valve suits compressed air supply lines, preventing air from bleeding back through the compressor head when the motor cycles off. Brass construction provides the corrosion resistance needed in workshop environments where moisture is present in the air stream. Whether you are maintaining an automatic lubrication system on rotating equipment or fitting a non-return valve into a compressed air ring main, these check valves deliver reliable one-way flow control.