K&B Duct Clamps and O-Rings

Cross-section of formed gasket

BUNA N (NITRILE)

• Standard - Formed to fit in the clamp grove.
• Basic Info: Closed cell material- impervious to most chemicals- good compression- excellent resiliancy- low cost.
• Temp range: - 67F to 275F
• Hardness/Durometer: 40 on A-scale
• Dynamic Service Abrasion Resistance: Excellent
• Compression Set Resistance: Very Good

SILICONE (Red) FDA- APPROVED

• Formed to fit in the clamp grove
• Basic Info: Red- FDA approved- Closed Cell- higher priced
• Temp range: - 103F to 475F (+)
• Hardness/Durometer: 40 on A-scale
• Dynamic Service Abrasion Resistance: Poor
• Compression Set Resistance: Excellent

Goretex

• Basic Info:Comes as thin gasket layed over Buna N or Silicone- very inert- will wick.

Viton

• Basic Info:Comes as thin gasket layed over Buna N or Silicone- very inert

FLUID COMPATIBILITY SUMMARY

Flange Gaskets

Gaskets are die-cut with or with-out holes. Our standard gasket is Neoprene. However, gaskets can be die-cut from a wide variety of materials. Gore-tex and Viton can also be applied as a tape around the ring or the Van-Stoned edge.

Neoprene

• Temp range: -40 to 285F
• Hardness/Durometer: 40 on A-scale
• Dynamic Service Abrasion Resistance: Very Good
• Compression Set Resistance: Good

FLUID COMPATIBILITY SUMMARY