FIELD: machine building.
SUBSTANCE: multi-layer hose for compressed air consists of layers in following order: - external layer (1) made of polyamide, not necessarily, intermediate layer (2) of polymer with modulus of elasticity at bending less, than 500 MPa, preferably, made of ethylene-copolymer and propylene-copolymer, internal layer (3) of polymer with modulus of elasticity at bending over 1100 MPa; also, internal layer (3) is in contact with compressed air.
EFFECT: improved chemical resistance of external layer of hose and improved mechanical strength facilitating its connection with usage of connecting clamps.
