John Perry Fittings

PNW Sanitary John Perry Fittings provide durable, leak-resistant connections for dairy, beverage, and other sanitary process systems—particularly where legacy equipment compatibility is required. Built around a flat-face ferrule profile with external Acme threads and a clamp-style assembly, John Perry unions create a secure metal-to-metal seat that has long been trusted in older process systems.

Where an added layer of assurance is needed, optional gaskets can be installed to enhance sealing while maintaining the core advantages of the John Perry profile. Manufactured from 304 and 316L stainless steel to sanitary tolerances, PNW Sanitary John Perry fittings deliver reliable, repeatable performance with full hygienic compliance.

These fittings are especially valued for retrofit and expansion projects, as they match historical geometries and allow integration into existing lines without costly rework. The clamp-style assembly also enables quick installation and disassembly for inspection or maintenance—saving time during changeovers.

  • Design: Flat-face ferrule + external Acme threads + clamp
  • Benefit: Metal-to-metal seat; gasket optional for tighter seals
  • Use cases: Dairy, beverage, and legacy process lines
  • Materials: 304 & 316L stainless steel
  • Quality: In-house PMI testing verifies alloy integrity and supports traceability

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