Buna-N Nitrile Tubing
Buna-N Rubber Nitrile Tubing Flex Fittings
Superior strength and high resistance to oils, fuels, and other chemicals

Buna-N Rubber, also called nitrile-butadiene rubber (NBR, Nitrile), is a synthetic rubber that provides excellent resistance to petroleum-based oils as well as mineral and vegetable oil. Our Buna-N Rubber Nitrile Tubing Flex Fittings can withstand a range of conditions in order to suit your specific application. Nitrile / BUNA-N is a copolymer of acrylonitrile and butadiene. It has excellent physical properties, however its claim to fame is based on its resistance to water, petroleum products and fuels. In the white formulation it is 3A rated. Useful temperature range is -40⪚ F to +220° F.
Our Buna-N Rubber Nitrile Flex Connectors display excellent resistance to petroleum-based oils, fuels, water, alcohols, silicone greases, and hydraulic fluids. The chemical and oil resistance, along with a good balance of desirable working properties like low compression set, high abrasion resistance and high tensile strength, makes Nitrile a favorite among chemical and process engineers. Our Buna-N Flex Connectors are also a great choice for applications that require abrasion resistance and metal adhesion. The drawbacks of Buna-N Nitrile include poor ozone and sunlight resistance, below average weather resistance, and poor flame resistance.


Features and Advantages
Nitrile Benefits & Advantages
- Resistance to Oil and Petroleum Products
- Excellent for Sealing Applications
- Abrasion Resistance
- Heat Resistance
- Abrasion Resistance
- Water and Moisture Resistance
- Resistance to Gas Permeability
- Great for Applications involving temperatures up to 250°F
Nitrile Rubber Applications
- Industrial and Process Equipment
- Bin Activators and Silos
- Oil Related Applications
- Screw Conveyors
- Screw Feeders and Vibratory Feeders
- Connecting (2) Flange Outlets or Pipes
- Oil Related Tubing
- Grommets
- Weigh Belt Feeders
- Hoppers
Available Options
Available Shapes
Straight Sleeves

Our Straight Sleeve Flex Fittings are suitable for applications involving identical top and bottom diameters.
Applications Include: Sifters, Screeners, Hoppers, Feeders, Bin Dischargers, Conveyors, and Packing and Filling Equipment.
Applications Include: Sifters, Screeners, Hoppers, Feeders, Bin Dischargers, Conveyors, and Packing and Filling Equipment.
Available Fittings
Worm Clamps

Our Quick Release Worm Clamps offer a tilting worm drive housing. These quick release worm clamps are ideal for rapid application and removal during process equipment cleaning and maintenance.
Tri-Clamp Assembly

Stainless Steel Tri-Clamp Fittings are commonly used for connecting Process Line Equipment in the Food, Beverage, and Pharmaceutical Industries. These Fittings Quickly Create a Leak-Proof Connection to Allow for Easy Assembly, Routine Maintenance and Inspection.
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