Rubber Fab Tuf-Flex®
Rubber Fab’s Tuf-Flex® sanitary gasket is the world’s only unitized gasket, and is setting new standards for purity, performance and flexibility.
Tuf-Flex® is specifically designed to meet critical requirements in pharmaceutical, biotechnology, ultrapure water, WFI (water-for-injection).
Because Tuf-Flex® will not impart taste or odor, Tuf-Flex® is your ideal gasket for the Food & Beverage Industry!
Tuf-Flex® Temperature Rating
-20°F to 300°F
- Effective seal
- Patented welding process produces large gaskets without dovetailed joints that permit leakage
- GYLON® material provides excellent chemical resistance of PTFE without creep relaxation and cold flow problems
- Versatile
- Available in cut gasket form only
- Styles 3500, 3504, and 3510 can be welded using this unique process
- Ideal for corrosive applications with extra large flanges
Size | Part Number | Gasket I.D | Gasket O.D. | Bead Center |
1/2″ | A42MPGR-TF-050-E | .380 | .86 | n/a |
3/4″ | A42MPGR-TF-075-E | .620 | .86 | n/a |
1″ | A40MPGR-TF-100-E | .900 | 1.984 | 1.718 |
1-1/2″ | A40MPGR-TF-150-E | 1.400 | 1.984 | 1.718 |
2″ | A40MPGR-TF-200-E | 1.900 | 2.515 | 2.218 |
2-1/2″ | A40MPGR-TF-250-E | 2.400 | 3.050 | 2.781 |
3″ | A40MPGR-TF-300-E | 2.900 | 3.579 | 3.281 |
4″ | A40MPGR-TF-400-E | 3.869 | 4.682 | 4.344 |
6″ | A40MPGR-TF-600-E | 5.817 | 6.507 | 6.156 |
8″ | A40MPGR-TF-800-E | 7.80 | 8.56 | 8.15 |
10″ | A40MPGR-TF-1000E | 9.74 | 10.55 | 10.12 |
12″ | A40MPGR-TF- 1200-E | 11.74 | 12.56 | 12.17 |
*Consult Factory for Tuf-Flex® Din/ISO & IDF Dairy gasket part numbers |
Achieve higher performance under SIP/CIP Conditions:
- Uniting the flexibility of an elastomer with the chemical resistance of PTFE
- Seats perfectly
- Superior resistance to cold flow and creep
- Minimal thermal expansion
- Outstanding service life
- Exceptional flexibility
Tuf-Flex® meets stringent standards:
- U.S. Pharmacopeia Class VI Certification
- Cytotoxicity Criteria
- Title 21 CFR 177.260 and Title CFR 177.1550
- USDA and 3-A Sanitary Standards
- Current Good Manufacturing Practices (CGMP)
- ASME-BPE Standards
- Animal Derived Ingredient Free
Material Guidelines Seal Material Guidelines
Part Numbers Tuf-Flex New Sizes.pdf
Brochure Tuf-Flex Beverage.pdf
RF_Tuf-Flex
Gasket Validation Brochure_11.pdf

Tuf-Flex® GASKET COMPARISON

TYPE 1
A Solid PTFE Type I Gasket is guaranteed to fail in SIP conditions. They will creep, cold flow and leak at delta T.

TYPE III ENVELOPE
The Envelope Gasket construction provides inconsistent results between the two materials. It will also creep, cold flow and leak over time.

Tuf-Flex®
The PTFE grafted elastomer in a Tuf-Flex sanitary gasket will maintain I.D. without re-torquing or leaking.

Available in IDF:
(International Dairy Fitting)

Also available in DIN/ISO Metric Sizes
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