Whether you’re using a closed loop, closed column, or open blast extraction with butane or propane as the extraction solvent, BUNA-N Sanitary Tri-Clamp gaskets are the optimal choice to get the job done. Compared to Viton gaskets, BUNA-N gaskets offer a lower temperature rating and superior physical properties. Remarkably, they are also cheaper than Viton and provide the same chemical resistance to butane and propane. With a wide range of sizes from 1.5” to 12”, we’ve got you covered for whatever application you require.
Lower Temperature Range
Excellent Resistance to Butane and Propane
Better Tear Resistance
Better Abrasion Resistance
8" (Easy On Flanged)
10" (Easy On Flanged)
12" (Easy On Flanged)
FDA Compliant / Meets 3A Standards
Minimum for Continuous Use (Static)
+210°F to +250°F
Maximum for Continuous Use (Static)
Durometer or Hardness Range
65 Shore A
Tensile Strength Range
Elongation Range (%)
Resilience / Rebound
Chemical Compatibility: Chemical compatibility measures the stability of a substance when mixed with another substance. Our Tri-Clamp Gaskets are made to stand the test of a variety of common substances, but have certain vulnerabilities to note for operation.
Compatibility Grade (A- Excellent, B- Good, C- Fair, D- Severe)
***Note: BUNA-N is not recommended for use with certain alcohols.
Disclaimer: Stainless Steel Express is not responsible for users running their system with incompatible chemicals. We recommend not exceeding a -40F Operating Temperature.