Engineering hydraulic hoses
The main standards adopted include:
International standards: ISO1436, ISO3862, SAEJ517, EN853, EN856, etc. Domestic standards and enterprise standards: GB/T3683, GB/T10544, ISO1436. Among them, ISO3862:2009 was revised and implemented in 2009, integrating SAEJ517, R12, R13, R15 series and EN856's 4SP, 4SH series into one, comprising a total of 5 series:
—4SP type: 4-layer steel wire reinforced high-pressure hose
—4SH type: 4-layer steel wire reinforced ultra-high-pressure hose
—R12 type: 4-layer steel wire reinforced medium-pressure high-temperature hose
—R13 type: Multi-layer steel wire reinforced high-temperature high-pressure heavy-duty hose
—R15 type: Multi-layer steel wire reinforced high-temperature ultra-high-pressure heavy-duty hose.
The national standard GB/T10544 is planned to be revised in 2012, and the national standard plan has been issued, preparing to adopt the international standard ISO3862:2009 equivalently.
Introduction to Hoses Part Two
The price on the website is per meter for the hose, and the price of the fitting is calculated separately. Please provide the size of the fitting when ordering.
1. Please confirm whether the hose requires internal or external threads. For internal threads, inform us of the thread type (if unsure, please measure the inner diameter of the thread with a standard caliper). Also, specify the shape of the internal thread core interface, which is typically flat, spherical, or flared. For external threads, inform us of the thread type (if unsure, measure the outer diameter of the thread with a caliper). Also, clarify the type of interface, as external thread interfaces are usually flat. Finally, confirm whether the hose fitting is straight, a 90° elbow, or a 45° elbow.
2. Please confirm the working pressure of the hose, as this relates to the number of steel wire layers—more layers mean higher pressure. Provide actual samples or images of the hose fitting and interface to avoid errors. If the hose pressure is unknown, send the printed text on the original hose for confirmation.
3. Note that all hoses are custom-made on-site and are non-refundable unless there is a quality issue. Thank you for your understanding!