USA Made Buna-N Tri Clamp Gasket - FDA Compliant - 1.5" to 12"

BUNA-N, also known as nitrile rubber (NBR) or Acrylonitrile-Butadiene Rubber, is a synthetic copolymer widely used for sanitary sealing. Our BUNA-N Tri-Clamp gaskets provide reliable performance across food, dairy, beverage, and general processing applications with excellent resistance to compression set, tear, and abrasion .
These gaskets offer solid compatibility with acids and milk alkali , and they handle most vegetable oil service. With a practical temperature rating of -30°F to 255°F , BUNA-N delivers dependable sealing in everyday duty cycles while remaining a cost-effective, easy-to-replace consumable.
Available in Black, White, and Blue color options and formulated for FDA compliance for appropriate food-contact applications, BUNA-N Tri-Clamp gaskets are a proven choice for sanitary pipelines and equipment.

Verify size, media compatibility, and regulatory requirements before purchase.
BUNA-N / NBR -30°F to 255°F Food & Beverage Ready Low-Cost Consumable
Sanitary Versatility: Suitable for food, dairy, beverage and general sanitary service; commonly used industry-wide.
Robust Elastomer: Excellent compression-set , tear , and abrasion resistance for reliable, repeatable sealing.
Practical Temperature Window: Rated -30°F to 255°F ; good resistance to acids , milk alkali , and most vegetable oils .
Chemical Resistance Chart Tri-Clamp Sizing Guide
Why these BUNA-N Tri-Clamp gaskets?

Proven sanitary performance — widely used across food, dairy, beverage, and general process lines.
Durable sealing — excellent resistance to compression set, tear, and abrasion for long service life.
Chemical compatibility — good with acids, milk alkali, and most vegetable oils in sanitary duty.
Temperature rating — operates from -30°F to 255°F for practical everyday processes.
Cost-effective — low cost consumable that’s easy to replace during routine maintenance.
Technical Specifications
Parameter
BUNA-N (NBR) Tri-Clamp Gaskets
Material
BUNA-N / Nitrile Rubber (NBR), Acrylonitrile-Butadiene copolymer
Temperature Range (Continuous)
-30°F to 255°F
Hardness (Typical)
Common sanitary compounds (e.g., ~70A durometer)
Compression Set / Wear
Excellent resistance to compression set, tear, and abrasion
Chemical Compatibility
Good with acids, milk alkali, and most vegetable oils (verify specific media)
Color Options
Black, White, Blue
Compliance
Formulated for FDA compliance for appropriate food-contact applications
Connection Type
Tri-Clamp / sanitary clamp fittings
Typical Applications
Food & beverage, dairy, sanitary processing, general lab/process lines
Appearance
Molded elastomer gasket, smooth sealing surfaces
Storage & Care
Store cool, dry, away from UV/ozone; inspect regularly and replace as needed
Notes
Always confirm compound against process media, temperature, and regulatory needs
Selection Guidance
Consider media, CIP/SIP cycles, and pressure/vacuum when choosing compound
Food & Beverage Dairy Processing Sanitary Piping Academic & Research
FAQ

What is BUNA-N (NBR) and where is it used?

BUNA-N is a nitrile rubber (Acrylonitrile-Butadiene) widely used for sanitary and industrial seals. It is common across food, dairy, beverage, and general processing applications.
What is the operating temperature range?

These gaskets are rated for -30°F to 255°F in typical sanitary service. Always confirm suitability for your process conditions.
How does BUNA-N perform with oils, acids, and alkali?

BUNA-N has good resistance to most vegetable oils , acids , and milk alkali , making it a versatile choice for food and beverage lines.
Is BUNA-N FDA compliant?

Yes—our BUNA-N compounds are formulated for FDA compliance for appropriate food-contact applications. Request documentation if needed.
What colors are available?

Standard color options are Black, White, and Blue for process identification and QA visibility.

Specifications
Material:
BUNA-N (Nitrile)
Conformance:
FDA Compliant / Meets 3A Standards
Temperature Range:
-40°F to +250°F
Tensile Strength:
200-3500PSI