ČSN EN 13765

This document specifies requirements for four types of thermoplastic multi-layer (non-vulcanized) hoses and hose assemblies for carrying hydrocarbons, solvents and chemicals. It specifies bore sizes from 25 mm to 300 mm, working pressures from 4 bar1) to 14 bar and working temperatures from -30 °C to 150 °C. Type 1 hoses are suitable for vapour applications. Types 2 to 4 hoses are suitable for liquid applications. The attention of users is drawn to Annex A concerning the selection of the material for the inner wall of layers and any polymeric coating of the internal wire helix related to the chemical(s) to be conveyed by the hoses and/or hose assemblies. This document does not apply to hoses and hose assemblies for: Aircraft ground fuelling and defuelling (EN ISO 1825); Fuel dispensing (EN 1360); Oil burners (EN ISO 6806); Liquefied petroleum gas and liquefied natural gas (EN 13766); Fire fighting (EN ISO 14557); Offshore liquefied natural gas (EN 1474-2); Refrigeration circuits (-).