BUNA-N Tri-Clamp 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; the best part is that they cost less 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 Continuous Use (Static)	-40°F
	-Brittle Point	-70°F
	-High Temperature Range	+210°F to +250°F
	-Maximum for Continuous 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
	-Benzyl	D - Severe Effect
	-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

No more than a -40 F operating temperature should be used with BUNA-N.

BVV is not responsible if incompatible chemicals, solvents, or operating temperatures are used in the user's system.

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