Miniature valves with luer end and steam-autoclavable valves are available upon request. Resenex Corp., 9614-F Cozycroft Ave., Chatsworth, CA 91311. A manufacturer offers a line of miniature check valves and fixed-flow controls. The metal ball-type check valves are available in brass or stainless steel and are suitable for use with liquids or gases. The fixed-flow controls, which consist of a ball check valve and a precision orifice arranged in parallel, are tamperproof and ensure unchanged operation.
Free flow occurs in one direction, while metered flow occurs in the opposite direction.
NPT threads, and press-in inserts. O'Keefe Controls Co., P.O. Box Q, Trumbull, CT 06611. Angle and in-line valves can be operated manually, pneumatically, or electropneumatically. Modular plastic check valves can be used for gas analysis, filtration, and medical diagnostic and treatment equipment. Customers can specify end fittings, cracking pressure, O-rings, and body and spring materials.