Understanding Hydraulic Hose Markings


Repeated disconnection of hydraulic hose fittings causes hidden wear, leading to leaks or failure. Using durable fittings like Dali Shen’s Artery Series with HNBR seals and following proper assembly practices can extend hose life. There’s no fixed reconnection limit—quality and care matter most.

Understanding Hydraulic Hose Markings

Hydraulic hoses are critical components in fluid power systems, and understanding their markings is essential for safe and reliable operation. Selecting the wrong hose can lead to leaks, equipment failure, or safety hazards. Most hoses feature printed markings along their length, conveying key information such as the manufacturer, hose type, size, pressure rating, temperature range, and applicable standards.


Decoding Hose Information
For example, a marking like “SAE 100R2AT - 1/2" - 350 bar - -40°C to +100°C” provides multiple layers of information. “SAE 100R2AT” indicates a high-pressure hose featuring a two-wire braid construction that meets SAE standards. “1/2"” specifies the internal diameter, affecting flow rate and fitting compatibility. “350 bar” denotes the maximum working pressure, and “-40°C to +100°C” defines the safe operating temperature range. Understanding these parameters ensures the hose can handle the system’s pressure and environmental conditions.

 


Professional Support for Hose Selection
Senflow offers a dedicated technical support team to assist with hose selection for complex hydraulic systems. By analyzing system pressure, temperature, fluid type, and dynamic conditions, Senflow experts recommend hoses that optimize performance, extend service life, and reduce operational risks. This professional guidance ensures users choose hoses that are fully compatible with their specific applications.
 

Practical Considérations
Special attention should be paid to hoses used with aggressive fluids, extreme temperatures, or highly dynamic systems, as proper selection directly impacts system reliability. Regularly checking that markings remain legible ensures traceability and supports preventative maintenance. In summary, hydraulic hose markings are essential technical indicators that enable informed decisions and maintain hydraulic systems safely and efficiently.


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