BUNA-N Tri-Clamp Tri Clover Gaskets Buna-N Tri-Clamp gaskets are the preferred choice of material when using a closed loop, closed column, or open blast extraction when butane or propane are used as the extraction solvent. Buna-N Gaskets offer a lower temperature rating and have better physical properties than Viton gaskets and the best part is that they are also cheaper than Viton and provide the same chemical resistance to butane and propane. ***Note: Buna-N is not recommended for use with certain alcohols. Key Features: Lower Temperature Range Lower Costs Better Compressibility and Springiness Excellent Resistance to Butane and Propane Better Tear Resistance Better Abrasion Resistance Sizes Available: 1.5" 2" 3" 4" 6" 8" - Easy On Flanged 10" - Easy On Flanged 12" - Easy On Flanged Technical Specifications: Material BUNA-N (Nitrile) Color Black Connection Type Tri-Clamp Conformance FDA Compliant / Meets 3A Standards Thermal Properties: -Low Temperature Range -70°F -Minimum for Continous Use (Static) -40°F -Brittle Point -70°F -High Temperature Range +210°F to +250°F -Maximum for Continous Use (Static) +250°F Gas Permeability Excellent Durometer or Hardness Range 65 Shore A Tensile Strength Range 200-3500PSI Elongation Range (%) 350-650% Abrasion Resistance Excellent Tear Resistance Excellent Resilience / Rebound Good Thread Style Female Chemical Compatibility: Butane A - Excellent Propane (liquified) A - Excellent Alcohols: -Amyl B - Good Conformance -Benzyl D - Severe Effect Thermal Properties: -Butyl C - Fair -Diacetone D - Severe Effect -Ethyl C - Fair -Hexyl A - Excellent -Isobutyl B - Good -Isopropyl B - Good -Isopropyl B - Good -Methyl A - Excellent -Octyl B - Good -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.
