Product Overview
Reliable custom rubber parts for industrial applications
Quick Answer
Oil resistant NBR rubber hose is a flexible hollow profile for routing compatible oils, lubricants, and application-approved media. Inner diameter, outer diameter, wall thickness, hardness, compound, reinforcement, pressure rating, temperature range, cut length, and continuous coil length are available upon request.
Oil resistant NBR rubber hose is a flexible hollow profile used for routing compatible oils, lubricants, and other application-approved media. The pictured hose has a black exterior, circular bore, and smooth rubber wall. Inner diameter, outer diameter, wall thickness, hardness, pressure rating, temperature range, and supply length are available upon request.
Oil Resistant NBR Rubber Hose for Industrial Fluid Handling
NBR, commonly known as nitrile or Buna-N, is a copolymer of acrylonitrile and butadiene, and the ratio of acrylonitrile content within the compound directly determines the hose’s degree of oil resistance, with higher acrylonitrile content generally providing stronger resistance to non-polar oils and fuels. This hose construction is widely specified wherever fluid transfer lines must maintain long-term structural integrity in direct contact with mineral oils, gasoline, diesel, and various hydraulic fluids. The flexible, coiled form factor typical of NBR hose allows for straightforward routing through tight equipment layouts while maintaining resistance to kinking under normal handling and installation conditions.
Key Material Specifications
| Property | Typical Value |
|---|---|
| Material Type | Nitrile Butadiene Rubber (NBR / Buna-N) |
| Temperature Range | Approximately -40 degrees Celsius to 121 degrees Celsius, with short-term exposure up to 160 degrees Celsius in some formulations |
| Oil and Fuel Resistance | Excellent resistance to petroleum oils, gasoline, diesel, mineral oils, and hydraulic fluids |
| Abrasion Resistance | High, supporting durability in mechanically demanding industrial environments |
| Ozone Resistance | Limited, generally requiring an outer cover layer for prolonged outdoor or daylight exposure |
| Common Pressure Ratings | Varies by hose construction, with reinforced designs commonly rated from 125 to 250 psi depending on application |
Why Specify NBR for Oil and Fuel Transfer Applications
Procurement teams sourcing hose materials for fluid transfer applications frequently select NBR because its chemical structure provides a reliable, well-documented resistance profile against a broad range of petroleum-based products, reducing the risk of premature swelling, cracking, or fluid contamination compared to general-purpose rubber compounds. This resistance profile is particularly valuable in high-volume industrial and automotive supply chains, where hose failure due to material incompatibility can result in costly downtime, fluid leaks, or safety incidents. Because NBR is one of the most extensively tested and widely available oil-resistant rubber compounds on the market, buyers benefit from consistent material performance data and broad manufacturer availability when specifying this hose type for large-scale procurement.
Application-Specific Sourcing Considerations
Buyers should confirm the intended fluid type and operating temperature range before finalizing hose specifications, since NBR’s resistance performance can vary depending on the specific oil, fuel, or hydraulic fluid composition, as well as exposure duration and ambient temperature. For applications involving significant outdoor exposure, sourcing teams should consider hose constructions that pair an NBR inner tube with a more ozone-resistant outer cover material, such as neoprene, since standard NBR alone offers comparatively limited resistance to prolonged ultraviolet and ozone exposure. Reinforcement layer specifications, including textile braid or wire reinforcement, should also be confirmed against the required pressure rating for the intended fluid transfer application.
Material Performance and Reliability
NBR hose maintains its oil resistance properties across a wide operating temperature range, generally performing reliably from around -40 degrees Celsius up to 121 degrees Celsius under continuous exposure to mineral oils and greases, with some formulations tolerating brief excursions to higher temperatures. This consistent performance under thermal cycling makes NBR hose a dependable choice for engine compartments, hydraulic power units, and industrial fluid transfer systems where temperature fluctuations occur regularly during normal operation. High abrasion resistance further supports long service life in industrial settings involving frequent hose movement, dragging, or contact with rough surfaces during routine use.
Common Applications
- Automotive fuel lines, oil seals, and hydraulic hose assemblies requiring reliable resistance to gasoline, diesel, and engine oils.
- Industrial hydraulic systems, including seals, hoses, and diaphragms for hydraulic cylinders and pumps handling petroleum-based fluids.
- Marine fuel system components and engine seals exposed to continuous oil and fuel contact in demanding maritime environments.
- Oil and gas equipment, including pipeline gaskets and wellhead sealing components requiring long-term hydrocarbon resistance.
- General industrial fluid transfer lines for lubricants, mineral oils, and non-flammable hydraulic fluids across manufacturing equipment.
Frequently Asked Questions
Which oils are compatible with NBR rubber hose?
Compatibility depends on the exact NBR compound and the oil formulation, additives, concentration, temperature, and exposure time. Provide the fluid name or safety data for evaluation. General NBR oil resistance should not replace an application-specific compatibility review.
Can NBR hose be used for fuel?
Fuel suitability cannot be assumed from the NBR material name alone. Gasoline, diesel, biodiesel, alcohol-containing fuels, and fuel additives can affect rubber differently. The exact fuel composition, temperature, pressure, permeation requirement, and applicable standard must be confirmed before selecting a compound.
What working pressure can this NBR rubber hose withstand?
No working or burst pressure has been confirmed. Pressure capability depends on the inner diameter, wall thickness, hardness, reinforcement, temperature, fittings, clamps, and pressure cycles. Provide the working pressure, peak pressure, safety factor, and test requirements before the hose structure is selected.
Can the inner and outer diameters be customized?
Custom inner diameter, outer diameter, wall thickness, and dimensional tolerance can be evaluated upon request. Provide the mating fitting dimensions, required interference, pressure conditions, bend radius, and hose length so the complete installation can be reviewed.
Is reinforced NBR rubber hose available?
Reinforced construction can be evaluated when additional pressure resistance, vacuum stability, mechanical strength, or kink resistance is required. The reinforcement type and hose structure depend on the operating pressure, diameter, temperature, flexibility, and installation conditions.
What are the MOQ, sample availability, and lead time?
MOQ, sample availability, and lead time are available upon request. They depend on the hose dimensions, compound, hardness, reinforcement, tolerance, order quantity, test requirements, cut length, coil format, and packaging specification.
Request Product Evaluation
Provide the required inner diameter, outer diameter, wall thickness, hardness, contact fluid, temperature, working pressure, burst requirement, bend radius, connection method, hose length, and estimated quantity. A drawing, sample, or complete assembly specification will help evaluate the NBR compound, hose structure, manufacturing feasibility, testing, and packaging requirements.
