MFR: BVVSKU: A40MPGR-150-V 30 Day Limited Warranty Made in the USA
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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.
***Note: Best Value Vacs ONLY recommends the use of PTFE Envelope gaskets with High Pressure clamps to ensure a positive seal on the system.
U.S.P. CLASS VI COMPLIANCE
|-Low Temperature Range||-100°F|
|-Minimum Continous Use (Static)||-65°F|
|-High Temperature Range||+400°F|
|-Maximum for Continous Use (Static)||+400°F|
|Durometer or Hardness Range||75 Shore A|
|Butane||A - Excellent|
|Propane (liquified)||A - Excellent|
|-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: Best Value Vacs Recommends no more than a -40F Operating Temperature and is not responsible for the user running their system with incompatible chemicals.