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Low Expansion SAE J1401 Hydraulic Brake Hose 3.2mm ID JUNZE
Lowest-expansion grade in the JUNZE range: 0.25 ml/m at 6.9MPa. SAE J1401 certified 3.2mm ID hose with dual PVC braid, burst tested to 80MPa. For performance builds and OEM programs where pedal feel matters.
- Commodity name： Low Expansion SAE J1401 Hydraulic Brake Hose 3.2mm ID JUNZE
- Description
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Hose swelling eats pedal travel. Every milliliter of volumetric expansion under pressure is energy diverted from the caliper, felt as a soft pedal and longer stopping distance. This 3.2mm ID grade posts the lowest expansion figure in the JUNZE hydraulic range — 0.25 ml/m at 6.9MPa — making it the default choice for performance builds and precision-oriented OEM programs.
Reaching 0.25 ml/m at 6.9MPa comes from tight control of the EPDM compound and consistent braid tension, not from thinner walls: burst pressure still holds at 80MPa minimum. The dual PVC yarn braid and ozone-resistant EPDM cover are identical in construction to our standard grade.
Parameter Specification Inner Diameter 3.2mm (1/8") — ID 3.35±0.15mm Outer Diameter 10.5±0.2mm Wall Thickness 3.65mm Wall Diff Max 0.3mm Inner Tube EPDM Reinforcement Dual-Layer PVC Yarn Braid Outer Cover Ozone-Resistant EPDM Max Expansion (6.9MPa) 0.25 ml/m Max Expansion (10.3MPa) 0.36 ml/m Burst Pressure (Min) 80 MPa Working Temperature -48°C to +120°C Brake Fluid DOT3, DOT4 Certification SAE J1401, GB16897-2010 Supply Format Bulk coil or cut length Specify this grade when brake modulation precision is the priority — performance passenger vehicles, motorsport preparation shops, and OEM programs that publish expansion data in their specifications.
Each batch is tested for expansion and burst before shipment. Request the datasheet and a sample coil to verify the numbers yourself.
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At Junze, we are committed to developing industry-leading, innovative products. We meet this goal by constantly striving to better understand what the installer wants and prefers, then bring it to life. all manufacturing processes from raw materials to final assembly are produced in-house, giving us complete control over the quality and consistency of our products.
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