Hydraulic Hose Assembly

Hydraulic hose assembly refers to the technology and supply plan to provide full-process connectors for specified working conditions. Including hoses (or rigid pipes), seals, connection accessories (such as Swivel Joint, flanges, etc.). Hydraulic hose assembly is an auxiliary device commonly used in hydraulic systems. It is made of high-pressure steel wire braided or wound rubber hose and steel joints with special equipment. It is used to connect various types of hydraulic components in hydraulic systems. It is mainly used for hydraulic power at the working temperature of -40 ℃ to + 100 ℃. Transfer or transport high-pressure media such as water, gas, and oil to ensure the circulation of liquid and transfer of liquid energy.

Hydraulic hose assembly is generally composed of liquid resistant synthetic rubber inner rubber layer, middle rubber layer, I to VI steel wire braided reinforcing layer, and synthetic rubber outer rubber layer with excellent weather resistance. Mainly used in hydraulic support of mines and oilfields, suitable for engineering and construction, lifting and transportation, metallurgical forging, mining equipment, ships, injection molding machinery, agricultural machinery, various machine tools, and various industrial sectors. And temperature of petroleum-based (such as mineral oil, soluble oil, hydraulic oil, fuel oil, lubricating oil) liquid, water-based liquid (such as emulsion, oil-water emulsion, water), gas, and liquid transmission and other fields.

Selection skills of hydraulic hose assembly

There are many factors that affect the use of the Hydraulic Rubber Hose assembly. Only by properly selecting the hose and the hose joint according to the working conditions can the reliability and economy of the hose be guaranteed. These factors are:

Hydraulic Rubber Hose

1.Hose size

The inner diameter of the hose must be appropriate. If the diameter of the hose is too small, it will increase the flow rate of the medium in the pipeline, which will heat the system and reduce the efficiency. It will also cause an excessive pressure drop and affect the performance of the entire system. When passing spacers such as steel plates, pay attention to the outer diameter of the hose.

2. Working pressure

The dynamic pressure of a general hose refers to the highest pressure allowed by the hose during continuous operation. According to the safety coefficient of hydraulic hoses specified in relevant international standards, the generally recommended working pressure is usually a quarter of the minimum burst pressure of the hose.

3. Impact pressure and fatigue life

The selection of the hose is based on the highest pressure value of the hydraulic system design. Because the pressure value of the hydraulic system is usually dynamic, and sometimes there is an impact pressure, the peak value of the impact pressure will be much higher than the maximum pressure value of the system. However, there are generally relief valves on the system, so the impact pressure will not seriously affect the fatigue life of the hose. For hydraulic systems with particularly frequent shock pressures, it is recommended to use hose products that are particularly resistant to pulsation.

4.Temperature range

The user should use the hose within the temperature range allowed by the hose quality specification. If the working environment temperature exceeds this range, the life of the hose will be affected, and its pressure capacity will be greatly reduced. For systems where the ambient temperature is too high or too low for a long period of time, hose sheathing is recommended.

5. Chemical compatibility

If special hydraulic medium is used, the user should ensure that the hose assembly used is compatible with the medium, the inner and outer layers of the hose, the joints and the O-ring.

6. Friction

When the hose is in contact with or rubbed with hard objects, it is recommended to add a spring sheath to the outside of the hose.

The above is the information about the hydraulic hose assembly introduced by Industrial Hose Manufacturer.