Product details


№4431R Insulation gasket
PILAFLON™ PTFE jacketed gasket

Features / Specifications

Product code



Lip type PILAFLON™ PTFE jacketed gasket
Soft filler: FF type
Jacket: RF type

Product information

Jacketed gasket with a rubber sheet soft filler inserted between PILAFLON sheets. Taking advantages of the chemical resistance of PTFE, sealability and elasticity of the soft filler, this gasket exhibits excellent performance. It provides higher sealability at low tightening pressure than other PTFE jacketed gaskets.

Main constituent materials

PTFE・ #5003-NBR

Main applications

Various pipes and connecting parts requiring insulation


Maximum pressure: 2.0 MPa
Temperature: -30 to +120°C
Gasket factor: 2
Minimum stress in tightening: 2.9N/mm2
Insulation resistance: 10^13Ω

Product category

Gaskets/Sheet gaskets
Fluororesin products/Insulation bolts & gaskets

General Catalogs

PILLAR Insulation Material Series PILAFLON PTFE Envelope Gasket


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