CHECK VALVES   The WellMark inline check valve is for liquid, air, gas, vapor, steam, or cryogenic service. It is also suitable for injection lines such as chemical and lubrication. The standard spring opens with 10 psi flow pressure. Click here for Catalog Page (PAGE 5)

EC WAFER CHECK VALVES   The WellMark Econo (EC) Wafer Check Valve is a space-saving, reduced-port check valve that can be easily installed between standard ANSI butt-weld flanges.  Available in 2", 3", 4" and 6" sizes and ANSI Classes 150, 300, 600, 900.  The valve is designed for wter, oil, and gas applications which include gathering systems, water flooding, meter runs, as well as other applications where a check valve is needed. Click here for Catalog Page  ~Discontinued

HIGH PRESSURE REMOVABLE BALL AND SEAT CHECK VALVES   The Cemco Check Valves are designed with a one-piece bar stock body for maximum safety and leak-proof characteristics.  The seat in all checks are made for 303 Stainless Steel, with a Buna-N compound molded in-side for abrasion resistance and tight shut-off.  The precision Stainless Steel ball seats on two metal seats with Buna-N between the seats to give a combination metal to metal seal and soft seat that can not extrude around the ball, which produces a tight seal for both high and low pressures. Click here for Catalog Page  ~Discontinued

KB BALL CHECK VALVES   The WellMark KB Ball Check Valve is an in-line valve which stops the flow from downstream when downstream pressure is higher than the upstream pressure-which could be detrimental to any upstream equipment.  These valves are suitable for waterflood injection. Click here for Catalog Page  ~Discontinued