The Smooth NBR Rubber Oil Hose from Hengshui Speed Drive Technology Co., Ltd.-HaoFa Racing is a high-quality nitrile rubber hose engineered for reliable fuel and oil transfer in low-pressure applications. Manufactured to SAE J30R7 specifications, it features a smooth black NBR inner tube that delivers excellent resistance to gasoline, diesel, kerosene, hydraulic oil, and lubricating oil. Available in 11 standard sizes from 1/8 inch (3.2 mm ID) to 1 inch (25.4 mm ID), the hose covers a wide range of automotive and industrial fuel system requirements. The surface finish is available in smooth, cloth-textured, mesh-textured, and striped patterns, with color options including black, red, blue and custom specifications. With a working pressure of 2 MPa (300 psi) for sizes up to 1/2 inch and 1 MPa (150 psi) for larger diameters, and an operating temperature range of -40°C to +125°C, this hose is widely used in engineering machinery, internal combustion engine fuel systems, and general-purpose petroleum transfer applications.
Product Name |
Smooth NBR Rubber Oil Hose |
Standard |
SAE J30R7 |
Part Numbers |
HF-34-1/8 through HF-34-1 (11 sizes) |
Inside Diameters |
3.2, 4, 4.8, 6.3, 7.9, 9.5, 12, 12.7, 16, 19, 25.4 mm |
Inch Equivalent |
1/8, 5/32, 3/16, 1/4, 5/16, 3/8, 15/32, 1/2, 5/8, 3/4, 1 inch |
Inner Tube |
NBR (Nitrile Butadiene Rubber), Black, Smooth Bore |
Surface Finishes |
Smooth, cloth-texture, mesh-texture, stripe patterns |
Colors |
Black (standard), Red, Blue, custom available |
Temperature Range |
-40°C to +125°C |
Working Pressure (≤1/2") |
2 MPa (300 psi) |
Working Pressure (≥5/8") |
1 MPa (150 psi) |
Burst Pressure (≤1/2") |
8 MPa (1200 psi) |
Burst Pressure (≥5/8") |
4 MPa (600 psi) |
MOQ |
500 meters per size |
Lead Time |
15–25 working days |
Certification |
ISO 9001:2015; SAE J30R7 compliant |
Materials & Finish
The inner tube is formulated from premium NBR (Nitrile Butadiene Rubber), selected for outstanding resistance to petroleum-based fuels and oils across the full -40°C to +125°C operating range. The outer cover is also NBR-based with available surface textures including smooth, cloth-grain, mesh-pattern, and stripe finishes. Standard color is black; red and blue are also available, with custom colors upon request. All rubber compounds are REACH and RoHS compliant.
Applications
• Automotive fuel lines, return lines, and evaporative emission systems
• Internal combustion engine fuel supply and return circuits
• Diesel fuel transfer for generators, pumps, and agricultural equipment
• Hydraulic oil and lubricating oil transfer lines in engineering machinery
• Marine fuel and oil lines (non-submerged applications)
• Small engine fuel lines for lawn mowers, generators, and power equipment
• General-purpose petroleum-based fluid transfer in industrial settings
Customization Options
Hengshui Speed Drive Technology Co., Ltd.-HaoFa Racing supports full customization. Custom inside diameters and wall thicknesses can be produced within 2–4 weeks. Surface finishes (smooth, cloth, mesh, stripe) and colors (black, red, blue, or custom) can be specified per order. Length options range from cut-to-length pieces to continuous coils up to 100 meters. Private labeling with inkjet-printed brand markings along the hose surface is available. MOQ for fully custom configurations is 2,000 meters per specification. Third-party inspection reports (SGS, Bureau Veritas) can be arranged upon request.
Packing & Logistics
Hoses are coiled and secured with PE film wrap, packed in export-grade woven polypropylene bags or cartons depending on quantity. Cut-to-length pieces are individually labeled and packed in master cartons. Continuous long lengths (50–100 m) on wooden or plastic spools. Port of loading: Qingdao or Tianjin, China. Incoterms: FOB, CIF, CFR.
Certifications
FAQ
Q: What is SAE J30R7 and why does it matter?
A: SAE J30R7 is an SAE standard specifying performance requirements for low-pressure fuel and oil hose. Our hoses are tested for compliance, ensuring safe and reliable operation in fuel system applications.
Q: Can this hose be used with ethanol-blended fuels?
A: Yes. NBR is compatible with ethanol blends up to E15. For higher ethanol concentrations (E20–E85) or methanol fuels, we recommend our FKM-lined variants. Contact our technical team for guidance.
Q: What surface finish and color options are available?
A: Standard finishes: smooth, cloth-textured, mesh-textured, and striped patterns. Colors: black (standard), red, and blue in stock; custom colors for orders exceeding 2,000 meters per color.
Q: Do you provide samples?
A: Yes, free samples of standard sizes (up to 1 meter). Buyer covers express shipping. Custom sizes may require a refundable mold fee.
Q: What certifications are available?
A: ISO 9001:2015 certification, material composition reports, SAE J30R7 conformance certificates. Third-party reports (SGS, BV, Intertek) available on request.
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