Relief Suppliers Directory

Qosina
...valves are pressure activated to prevent backflow. Choose our one-way, dual (with male, female and tubing ports), luer activated, duckbill, or relief check valves to meet your requirements. A check valve sample kit contains different examples from our catalog and can be purchased...

Air Logic
The Air Logic Division of Fred Knapp Engraving Company designs and manufactures a comprehensive line of pneumatic and vacuum control equipment – sensing and input elements, control elements, and output interface devices. The control elements include both fluidic and moving di...