A high pressure hydraulic hose is designed to transfer hydraulic oils. It is also commonly called a hydraulic oil hose, flexible hydraulic hose, or high pressure hose. Generally, these hoses are categorized into two main types: steel wire braided hydraulic hoses and steel wire wound (spiral) hydraulic hoses.
Hydraulic hoses can handle various media, including:
Water
Gas
Hydraulic oil and other lubricating fluids
Industry Standards for Hydraulic Hoses
Hydraulic hoses adhere to several international and regional standards, with the most common being DIN, SAE, ISO, and GB/T.
Steel wire braided hoses
Standards: DIN EN 853, SAE J517
Example: EN 853 2SN (a common braided hose specification).
Steel wire spiral hoses
Standards: DIN EN 856, SAE J517
Example: SAE 100 R1 (a typical spiral hose designation).
Hydraulic Hose Fittings
To accommodate the wide range of hose sizes, numerous high pressure hose fittings are available. Key details include:
Types of fittings
Connectors, joints, and ferrules are commonly used to join hoses to equipment.
Materials
Fittings are often made of stainless steel or brass for durability and corrosion resistance.
Connection styles
Threaded, male/female, and other specialized designs to suit different applications.
Specialized Hydraulic Hoses: PTFE-Lined Hoses
A notable variant is the SAE 100 R14 PTFE-lined hose, which uses PTFE (polytetrafluoroethylene) as the inner tube instead of rubber. This design offers:
Excellent wear resistance: Ideal for transporting abrasive fluids.
Superior chemical resistance: Capable of handling corrosive media that would degrade traditional rubber hoses.
Key Takeaways
1.Choose braided or spiral hoses based on pressure requirements (spiral hoses typically handle higher pressures).
2.Always match the hose’s temperature and media compatibility to your application.
3.For corrosive environments, consider PTFE-lined hoses for extended lifespan.
Orientflex specializes in high-quality hydraulic hoses and fittings that meet global standards. Contact us today to find the right solution for your hydraulic system needs!