Patent ID: 8479777

Claim:
A hose for use at a service temperature range of between about −57° C. (−70° F.) and about +100° C. (+212° F.) and a service pressure range of between about 28.0 MPa (4000 psi) and up to about 56.0 MPa (8000 psi) comprising: an inner tubular core comprising a layer of a first rubber compound comprising an acrylonitrile butadiene rubber (NBR) or a copolymer or blend thereof having an elastic modulus of not greater than about 8.4 MPa (1200 psi); at least a first pair of spiral wound reinforcement layers surrounding the core comprising a first reinforcement layer and a second reinforcement layer surrounding the first reinforcement layer; and an outer jacket surrounding the second reinforcement layer comprising a layer of a second rubber compound having a durometer of not greater than about 75 Shore A.