427 SERIES POPPET CHECK VALVE on Specialty Mfg. Co., The


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larger image		The 427 Series Check incorporates a plastic poppet that seals on a quad ring. The 427 Check poppet option works best in applications that see consistent working pressure at the high end of the Maximum Operating Pressure range. Nylon, PVDF (Kynar®) and Glass Filled Polypropylene are available for chemical resistance applications. MakroBlend is an NSF Standard 51 Approved Material. Hastelloy is a superior chemically resistant spring material.