PTFE Envelope Tri-Clamp

PTFE Envelope Tri-Clamp/Tri-Clover Gaskets with Viton Filler PTFE Envelope Tri-Clamp Gaskets are the only choice when needing extreme chemical resistance and temperature range. These gaskets are extremely unique in their construction because they have a Viton filler for compressibility surrounded by an 'Envelope' of PTFE which creates a unique combination of chemical resistance while providing an exceptional sealing characteristic. Normal solid PTFE gaskets are very tough to seal on their own and are usually not recommended in vacuum applications due to the gasket being very rigid because PTFE is not very compressible by itself.  Tri-Clamp/ Tri-Clover Sanitary Fittings Gaskets create a pressure-tight seam between multiple stationary components, relying on a compression seal to prevent unwanted gas or liquid emissions. ***Note: Best Value Vacs ONLY recommends the use of PTFE Envelope gaskets with High Pressure clamps to ensure a positive seal on the system. Key Features: Excellent resistance to almost all chemicals Excellent Temperature Range Excellent Cleanability due to PTFE (Teflon) Envelope No Chemical Leaching Sizes Available: 1.5" 2" 3" 4" 6" 8" 10" 12"   Chemical Compatibility: Material PTFE(Teflon)/Viton Filler(FKM) Color White/Black Connection Type Tri-Clamp Conformance U.S.P. CLASS VI COMPLIANCEPasses USP Class VI Cytotoxicity Testing and is suitable for high purity pharmaceutical grade applications.PTFE is FDA 21, 177,1550 compliant and the FKM(Viton) inner cores are FDA CFR 21, 177.2600 compliant. Thermal Properties: Low Temperature Range -100°F Minimum Continous Use (Static) -65°F Brittle Point -100°F High Temperature Range +400°F Maximum for Continous Use (Static) +400°F         Chemical Compatibility: Butane A - Excellent Propane (liquified) A - Excellent Alcohols: Amyl A - Excellent Benzyl A - Excellent Butyl A - Excellent Diacetone A - Excellent Ethyl A - Excellent Hexyl A - Excellent Isobutyl A - Excellent Isopropyl A - Excellent Methyl A - Excellent Octyl A - Excellent Propyl A - Excellent BVV™ PTFE Gasket With Viton Filter - Data Sheet    Disclaimer: BVV Recommends no more than a -40F Operating Temperature and is not responsible for the user running their system with incompatible chemicals.

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Tef-Flex Sanitary Tri-Clamp Gasket Tef-Flex: A Tef-Flex sanitary gasket’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, Tef-Flex will behave like an elastomer but will prevent product contamination, service interruptions and clean-up costs associated with traditional elastomer seals. The PTFE grafted elastomer in a Tef-Flex sanitary gasket will maintain I.D. without re-torquing or leaking. Key Features: Excellent resistance to almost all chemicals Excellent Temperature Range Excellent Cleanability due to PTFE (Teflon)  Excellent Flexibility Sizes Available: 0.5" 0.75" 1" 1.5" 2" 2.5" 3" 4" 6" 8" 10" 12" Chemical Compatibility: Butane A - Excellent Propane (liquified) A - Excellent Alcohols: Amyl A - Excellent Benzyl A - Excellent Butyl A - Excellent Diacetone A - Excellent Ethyl A - Excellent Hexyl A - Excellent Isobutyl A - Excellent Isopropyl A - Excellent Methyl A - Excellent Octyl A - Excellent Propyl A - Excellent Disclaimer: BVV Recommends no more than a -40F Operating Temperature and is not responsible for the user running their system with incompatible chemicals.

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