Duo-Chek® High Performance Non-Slam Dual Plate Check Valves are the original mission wafer check valves introduced to the market in the late 50’s.

Available in a broad range of sizes, pressure classes, and configurations, Duo-Chek® check valves offer reliable performance, tight shutoff, and long service life, making them indispensable across various industries such as oil and gas, chemical, power, and water treatment.

Duo-Chek® high performance check valves have long been the standard for low-pressure drop flow reversal protection, available in cast iron, cast steel, stainless steel and a variety of exotic materials.

Key features of the Duo-Chek® Retainerless Check valve Style H include: • A wide selection of body and plate materials • A choice of metal-to-metal or resilient sealing • A full range of pressure classes and sizes • A variety of end connections • Designs …

Duo-Chek high performance non-slam check valves are the original Mission wafer check valves introduced to the market in the late 50's. They are available in the sizes, pressure classes and configurations you need to meet the most demanding of

Key features of the Duo-Chek® Retainerless Check valve Style H include: • A wide selection of body and plate materials • A choice of metal-to-metal or resilient sealing • A full range of pressure classes and sizes • A variety of end connections • Designs …

Duo-Chek high performance non-slam check valves are the original Mission Manufacturing Company wafer check valves introduced to the market in the late 50’s. The valve is available in the sizes, pressure classes and configurations required …

Duo-Chek high performance non-slam check valves are the original Mission wafer check valves introduced to the market in the late 50's. They are available in the sizes, pressure classes and configurations you need to meet the most demanding of

Duo-Chek® high performance check valves have long been the standard for low-pressure drop flow reversal protection, available in cast iron, cast steel, stainless steel and a variety of exotic materials.

The original 'Mission' dual plate wafer check valve. The Duo-Chek II wafer valve design is generally stronger, lighter, smaller, more efficient and less expensive than conventional swing check valves. Easy to install between standard gasket and line flanges.