Extremely high-pressure hose is recommended for use in high-impulse high pressure applications: hydrostatic drives, mobile construction equipment, boom arms, mining trucks, excavators, forestry and agricultural machinery. Standards for impulse testing are more than double for very high pressure spiral construction hose versus lower pressure braided hoses. These hoses are generally constructed with four to six plies of spiral steel reinforcement. Historical 100R12, 100R13, and 100R15 construction have been updated with easy to route and to install construction styles ISO 18752.
