Hydraulic oil pipe assemblies are key components for transmitting hydraulic oil and connecting hydraulic components in hydraulic systems. Their selection directly affects the performance, reliability and safety of the system. Correct selection requires comprehensive consideration of the system's working conditions, environmental factors, and the performance of the oil pipes and joints. The following is a detailed introduction to the selection of hydraulic oil pipe assemblies by Liwang Fluid Technology.

 

1. Key factors for selection

 

Working pressure

Select the pressure resistance level of the oil pipe according to the maximum working pressure of the hydraulic system. For low-pressure systems (≤16 MPa), nylon oil pipes or single-layer steel wire braided oil pipes can be selected. For medium-pressure systems (16-42 MPa), double-layer steel wire braided oil pipes are suitable, while high-pressure systems (≥42 MPa) require multi-layer steel wire wound oil pipes.

 

Working temperature

Select the tubing material according to the working temperature range of the hydraulic system. Ordinary rubber or nylon tubing can be selected for normal temperature (-40℃ to +100℃), Teflon (PTFE) tubing or high temperature resistant rubber tubing should be selected for high temperature environment (≥100℃), and low temperature resistant rubber tubing is suitable for low temperature environment (≤-40℃).

 

 

Media compatibility

Ensure that the tubing material is compatible with the chemical properties of the hydraulic oil. Ordinary rubber or nylon tubing can be selected for ordinary mineral oil, EPDM rubber or Teflon tubing should be selected for phosphate ester hydraulic oil, and special rubber tubing is suitable for water-ethylene glycol hydraulic oil.

 

Installation environment

Select the outer protective material of the tubing according to the vibration, impact, wear and other conditions of the installation environment. Ordinary rubber outer tubing can be selected for normal environment, while tubing with wear-resistant outer layer or armor protection is required for harsh environment.

 

Bending radius

Select the appropriate bending radius of the oil pipe according to the installation space, and ensure that the bending radius of the oil pipe is not less than the minimum value recommended by the manufacturer to avoid damage to the oil pipe due to excessive bending.

 

Connector type

Select the appropriate connector type according to the interface type of the hydraulic component. The ferrule connector is suitable for medium and low pressure systems and is easy to install. The flared connector is suitable for low and medium pressure systems. The flange connector is suitable for high and ultra-high pressure systems, and the quick-change connector is suitable for occasions where the oil pipe needs to be replaced frequently.

 

2. Specific steps for selection

 

In the selection process of the hydraulic oil pipe assembly, it is necessary to first clarify the parameters such as the working pressure, temperature, medium type and installation environment of the hydraulic system, and then select the oil pipe with the appropriate pressure resistance grade according to the system pressure (such as steel wire braiding, steel wire winding or nylon oil pipe), and select the appropriate oil pipe material according to the working temperature (such as ordinary rubber, Teflon or low temperature resistant rubber). Next, select the appropriate connector type (such as ferrule, flared, flange or quick-change connector) according to the interface type of the hydraulic component, and ensure that the size and thread type of the connector match the hydraulic component. In addition, the outer protective material of the oil pipe (such as wear-resistant outer layer or armor protection) needs to be selected according to the vibration, wear and corrosion conditions of the installation environment. Finally, verify whether the performance parameters of the selected oil pipe and connector (such as pressure rating, temperature range, and media compatibility) fully meet the system requirements.

 

3. Advantages of Liwang Fluid Hydraulic Hose Assembly

 

Liwang Fluid Hydraulic Hose Assembly** has become an ideal choice for hydraulic system selection due to its excellent performance and professional service. Its core advantages include: using high-quality synthetic rubber and Teflon materials to ensure excellent pressure resistance, temperature resistance and corrosion resistance; providing a variety of pressure resistance levels, connector types and outer protection options to fully meet the needs of different working conditions; excellent flexibility, small bending radius, easy to install in complex spaces; at the same time, it has wear resistance and aging resistance, long service life, and significantly reduces maintenance costs. In addition, Liwang Fluid also provides comprehensive technical support and after-sales service to help users solve the problems in selection and installation. The selection of hydraulic oil pipe assembly is a key link in the design of hydraulic system, which requires comprehensive consideration of working pressure, temperature, medium, installation environment and connector matching. Through scientific selection, the performance and service life of the hydraulic oil pipe assembly can be ensured, thereby improving the reliability and safety of the system. In the actual selection, users should strictly follow the specifications and select the most suitable oil pipes and connectors according to the specific working conditions to ensure the efficient operation of the system. **Liwang Fluid Hydraulic Hose Assembly** provides users with reliable solutions with its excellent quality and professional services, and is the preferred brand in the design and maintenance of hydraulic systems.