How to Choose the Right Hydraulic Tubes Size?

In hydraulic systems, choosing the right hydraulic tube size is crucial. Improper sizing not only affects system efficiency but can also lead to leaks, increased energy consumption, and even safety incidents. Determining the proper size for custom hydraulic tubes requires measuring the hose's diameter, length, and bend radius, while also considering factors such as the hydraulic system's operating pressure, flow rate, and temperature.

Measuring Basic Hydraulic Tube Dimensions

1. Measuring Hydraulic Tube Diameter

The diameter of a hydraulic tube determines the flow rate and flow rate of the fluid.

Inner Diameter (ID): Determines flow rate and is a key design parameter.

Outer Diameter (OD): Affects pipe connections and installation space.

Wall Thickness (WT): Determines the maximum operating pressure of the system.

You will need to use a vernier caliper or pipe gauge to measure the inside and outside diameters.

Ensure accurate measurements and record them for future reference when ordering the hydraulic tube.

2. Measuring Hydraulic Tube Length

Determining the length of the hydraulic steel tube is another key factor in ordering the correct size. You need to measure the entire length of the hydraulic tube, from end to end.

Make sure you measure straight across the hose, not along its curve.

We recommend taking multiple measurements for each hose and averaging the results to ensure accuracy.

3. Measuring the Bend Radius of Hydraulic Tubes

The bend radius is the minimum radius to which the hose can be bent.

Measuring the bend radius is crucial for ensuring a successful hydraulic tube connection.

You can use a bend radius gauge or place a straight line along the curve of the hose.

Be sure not to overbend the hose, which could cause it to crack, but also ensure the hose is bent sufficiently to ensure a stable connection.

Parameters to Consider When Ordering Hydraulic Tubes

1. Hydraulic Tubes Pressure

The hydraulic tube material and wall thickness should be selected based on the maximum operating pressure of the hydraulic system.

The hose must be able to withstand the system's maximum operating pressure, with a safety factor.

A common safety factor is 4:1 (burst pressure ≥ 4 times the operating pressure).

2. Hydraulic Tube Flow Rate

The inner diameter of the hydraulic steel tube must match the flow rate used by the hydraulic system.

If the hose is too small, the pressure of the fluid flowing through it will increase, affecting system performance; if the hose is too large, it will waste system energy.

Recommended flow rate range:

Pressure line: 4–6 m/s

Return line: 2–3 m/s

Suction line: 0.6–1.2 m/s

3. Hydraulic System Temperature

The material and wall thickness of the hydraulic steel tube should be selected based on the operating temperature of the hydraulic system.

High temperatures can burn the hose, while low temperatures can cause it to become brittle.

4. Installation Environment Factors

If the hose will be exposed to chemicals or UV rays, a corrosion-resistant coating or special cover should be selected.

In confined spaces, pay special attention to the bend radius and fitting angle of the hydraulic tube.

Selection Recommendations

1. Dimensions

Obtaining correct dimensions before ordering ensures that you purchase the correct size hydraulic steel tube.

2. Determine Parameters

Before ordering, determine the required tubing bend radius and applicable parameters.

3. Seek Professional Support

If you are unsure what tubing size to order, consult a professional or refer to the manufacturer's guidelines for the hydraulic tubing.

Conclusion

Sizing hydraulic tube is crucial to ensuring the proper function of your hydraulic system. Measuring the tubing's diameter, length, and bend radius, considering factors such as the system's operating pressure, flow rate, and temperature, and consulting manufacturer's guidelines and professional advice are all important steps in ordering the correct size.