Integraflow supplies premium-grade DIN Imperial PTFE Seals, engineered for use in DIN 11851-style hygienic unions fitted to imperial outside diameter (OD) stainless steel tubing. PTFE (Polytetrafluoroethylene), also known by the brand name Teflon®, is the go-to gasket material for chemically aggressive, high-temperature, and high-purity applications.

These seals provide a non-stick, leak-tight barrier between the DIN male liner and ferrule, clamped by the DIN nut — ideal for use in critical process systems where conventional elastomers may degrade.

Key features:

• Designed for 1” to 4” imperial OD pipework

• Resistant to virtually all chemicals, solvents, acids, and alkalis

• Exceptional thermal stability up to +260°C

• Non-stick surface, ideal for viscous or high-purity media

• Available as solid PTFE gaskets or PTFE envelope seals with EPDM or Silicone core

• FDA and USP Class VI compliant options available

Applications:

• Pharmaceutical and biotech production

• Aggressive CIP/SIP chemical systems

• Food processing involving sticky or reactive products

• Chemical manufacturing and dosing systems

All DIN Imperial PTFE Seals are precision-machined, fully batch traceable, and available for fast UK-wide dispatch from Integraflow – your hygienic pipework sealing expert.