Check-All Valve® is happy to announce the addition of the Adapter Valve

Since 1958, Check-All Valve® Mfg. Co. has manufactured a complete line of spring-loaded piston-type check valves, also known as silent check valves. We service customers all over the world in the chemical, petrochemical, pharmaceutical, biofuel, food and beverage, water treatment, OEM, and MRO industries and our products are trusted in the most demanding applications.

Check-All Valve® is happy to announce the addition of the Adapter Valve to our full service line of check valves. The Adapter Valve is available in two styles, model AM (MNPT x FNPT) and model AF (FNPT x MNPT). Both models have the same size pipe thread on both ends for installation where a threaded straight adapter is needed. The one-piece body design is machined from high quality bar stock and is manufactured at our factory in West Des Moines, Iowa.



½” – 4” NPT threads

Body Materials

316 Stainless Steel, Brass, Carbon Steel, Alloy 20, Alloy B, Alloy C-276, Monel® 400, Titanium

Seat Materials

AFLAS®, Buna-N, EPDM, KALREZ®, “Metal-to-Metal”, Neoprene, PTFE, and FKM

Spring Materials

316 SS, Alloy C-276, Alloy B, INCONEL® X750, MONEL® 400, 17-7PH SS, and Titanium

        AF Model
                            FNPT inlet x MNPT outlet

         AM Model                                     AF Model

          MNPT inlet x FNPT outlet             FNPT inlet x MNPT outlet

For more information, please contact sales at (515) 224-2301, or Or visit

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