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TUF-FLEX®
Introducing a technologically advanced new hygienic seal, TUF-FLEX®. This revolutionary new seal from Rubber Fab Technologies Group is the world’s only unitized seal, setting new standards for purity, performance and flexibility. Designed to meet critical requirements in pharmaceutical, biotechnology, ultrapure water, WFI (water-for-injection) and difficult food and beverage processing, TUF-FLEX® outperforms other seals while eliminating costly process interruptions.

  

 
TUF-FLEX® SEAL COMPARISON
 
TYPE I
A Solid PTFE
Type I Seal is guaranteed to fail in SIP conditions. They will creep, cold flow and leak at T.
TYPE III
ENVELOPE
The Envelope Seal 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 hygienic
seal will maintain I.D. without re-torquing or leaking.
  
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 177.2600
   and Title CFR 177.1550
• USDA and 3-A Sanitary
   Standards
• Current Good Manufacturing
   Practices (CGMP)
• ASME-BPE Standards
• Animal Derived Ingredient    Free