Chemical Compatibility -  Use this comprehensive Guide to check the compatibility of the coupling Body material (SS 316, Alloy 20, or Hastelloy C) and Seal material (PTFE, Viton, EPDM, or Chemraz) against your line medium. In the compatibility Guide, simply select your "Chemical" and click "Submit". Please note the following abbreviations for materials:

Alloy 20: (Carpenter 20)

SS316: (SS316)

Viton: Fluorocarbon (FKM), Fluoroelastomer


Chemraz: (FFKM), Perfluoroelastomer

Teflon: (PTFE)

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