YM hoses feature a typical multilayer composite structure, consisting, from the innermost layer to the outermost layer, of:
Inner rubber layer: A special synthetic rubber with oil and chemical resistance (such as hydrogenated nitrile rubber, HNBR) is selected, enabling direct contact with hydraulic oil, fuels, emulsions, and other media while ensuring leak-free performance over long-term use.
Reinforcement layer: Constructed using high-strength steel wire braiding or helical winding to provide pressure-bearing capacity.
Outer rubber layer: Coated with aging‑resistant, abrasion‑proof EPDM or nitrile rubber to resist UV radiation, ozone, and mechanical abrasion, thereby extending service life.
Resistant to oil (non-mineral), grease, alkalis, and detergents.
Temperature: -20~80℃
Material: Nitrile rubber
Sludge containing hydrocarbon fractions; polyaluminum chloride
