Rubber Fab Tuf-Flex Tri-Clamp Gaskets


Tuf-Flex® is the world's only utilized seal setting new standards for purity, performance and flexibility. Designed to meet critical requirements in pharmaceutical, biotechnology, ultra-pure water, Water-For-Injection and difficult food and beverage processing.

A Tuf-Flex hygienic seal's contact surface is a layer of PTFE grafted to an EPDM rubber inner core. This totally bonded construction provides an exceptionally pure and incredibly flexible seal. By grafting the elastomer with a layer of PTFE, Tuf-Flex will behave like an elastomer but will prevent product contamination, service interruptions and clean-up costs associated with elastomer seals. They achieve higher performance under SIP/CIP conditions, 100 steam cycles guaranteed. Tuf-Flex® has superior resistance to cold flow and creep and excellent chemical resistance.

Technical information

Sizes 1/2" to 6"
Temp. range -29°C to 149°C
Material PTFE layer bonded on a EPDM core


USP Class VI, 3.A

English - 2,9 MB - rev. 10/17 – #RF-600

pdfDatasheet Tuf-Flex ASME BPE, ISO & DIN
English - 730 kB - rev. 01/15