Fuel hose

The fuel hose from Qingdao Sunsong Co., Ltd is engineered for sustained operation at temperatures up to 150°C and features low permeability to meet O3 specification standards. It is constructed with a synthetic rubber inner layer, multi-layer textile reinforcement, and a chloroprene outer cover. The hose is designed for continuous use with gasoline, diesel, and biofuels, and is rated for pressures up to 3.0 MPa. Available diameters include 8 mm, 12 mm, 16 mm, and 20 mm, with standard lengths of 50 meters per coil.

The inner tube is formulated to resist degradation from aromatic hydrocarbons in diesel and ethanol in biofuels. The reinforcement layer uses high-tensile polyester braiding, a typical industry standard for medium-pressure fuel transfer. The outer cover is optimized for UV and ozone resistance, as indicated by compliance with O3 specification. This construction differs from standard SAE J30R7 hoses by its higher temperature tolerance, making it suitable for engine bay installations where ambient heat is elevated.

This product is commonly purchased by manufacturers of marine propulsion systems, heavy-duty trucks, and industrial generators in the Middle East and Latin America. Buyers typically require 100 to 1,000 meters per order, packaged in sealed plastic bags with outer cartons marked with batch codes. Trade terms include FOB Qingdao and CIF, with lead times of 20 to 30 days. Minimum order quantities are not published but are understood to be negotiable for established buyers.

Qingdao Sunsong Co., Ltd is located in the Wangtai Lingang Industrial Park, Jiaonan, Qingdao, Shandong Province. The supplier is classified as imported with harbor trust tier, indicating verified export history but no public disclosure of quality certifications or production capacity. The listing does not mention company founding date, workforce size, or client names. The company appears to specialize in rubber hoses for industrial applications, with a focus on temperature-resistant designs.

No certifications such as ISO or SGS are confirmed in the product description, though they are claimed without documentation. Response metrics show zero response rate and zero average response hours, indicating no automated or manual buyer communication system is active. Buyers must assume all technical clarifications require direct inquiry. Production is likely based on standard molds and material batches, with no evidence of custom engineering or in-house testing facilities.