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.

Call

Viton-

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

Call

FLUID COMPATIBILITY SUMMARY

                                                                N BUNA               SILICONE

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

                                                   Neoprene