200-Series Check Valves (up to 3,000 PSIG)

Circle Seal 200-series check valves are designed to provide perfect sealing with virtually any liquid or gas service. The principle of the Circle Seal check valve is outstanding in its simplicity and unequaled in its dependability. The wide range of adaptability provides in one check valve all of the qualities which are of primary importance in modern fluid systems. The patented sealing principle effects complete leak-proof closing under all pressure conditions.

These check valves are rated for a maximum operating pressure of 3,000 PSIG max operating pressure with connection sizes ranging from 1/8″ to 2″ FNPT. Materials of construction are Brass, Carbon Steel, 303SS or 316SS construction, with a wide variety of o-ring material options to provide maximum flexibility to suit the requirements of any application.