YM hoses employ a typical multilayer composite structure, which, from the innermost layer to the outermost, consists 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: Made by braiding high-strength steel wires or employing a helical winding process, it provides pressure-bearing capacity.
Outer rubber layer: Coated with aging‑resistant, wear‑resistant EPDM to withstand UV radiation, ozone, and mechanical abrasion, thereby extending service life.
Excellent chemical resistance, particularly to ketones, alcohols, and concentrated acids.
Temperature: -20~100℃
Material: EPDM rubber
Sodium hypochlorite; sodium bisulfate; ferric chloride; hydrochloric acid
