MFR: BVVSKU: A40MPGR-150-V
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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.
|Conformance||U.S.P. CLASS VI COMPLIANCE
Passes 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|
|High Temperature Range||+400°F|
|Maximum for Continous Use (Static)||+400°F|
|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.