[email protected]

Get FREE Hose Samples


24/7 Customer Support

Hydraulic Hose Flow Rate: Ultimate Guide to Hydraulic Hose Flow Rate

Table of Contents


This is the ultimate guide to the hydraulic hose flow rate.  Let’s dive into the hydraulic hose flow rate quickly.

What Is Hydraulic Hose Flow Rate?

hydraulic hose flow rate
hydraulic hose flow rate

The hydraulic hose flow rate, or hydraulic flow, is defined as the volume of the substance that flows through the hydraulic hose inner tube cover a specific period of time. And the hydraulic hose flow rate can be mathematically represented by a capital letter Q.

And calculating the hydraulic hose flow rate is very important for hydraulic system engineering, to determine the right selection of the hydraulic hose used for the hydraulic system.

Does Hydraulic Hose Size Affect Flow Rate?

Yes, of course! If the inner diameter of the hydraulic hose is too small, it will increase the flow rate of the medium in the pipe, causing the system to generate more heat, reduce efficiency, and generate excessive pressure drop, which will affect the performance of the entire system; too much inner diameter will increase the procurement cost and affect the normal operation of the system.

When fixing the hose with a pipe clamp or passing the hose through a steel plate, pay attention to the outer diameter of the hose. Using the relationship diagram of the hose flow, inner diameter, and flow rate, you can quickly select the appropriate hose inner diameter, as shown in the figure.

For example, the flow rate of the hydraulic system is 75 L/min, and the recommended flow rate of the pipeline is 6 m/s. Connect the two coordinate points to form a straight line, and the intersection of 15.9 mm with the pipeline inner diameter column is the required inner diameter of the hose.

How Do You Calculate the Flow Rate of A Hose?

hydraulic hose flow rate formula
hydraulic hose flow rate formula

Here is the hydraulic hose flow rate formula, helping you calculate the result of hose flow rate. Flow rate Q is defined to be the volume of hydraulic fluid passing by through a hydraulic hose during a period of time.


V is the volume and t is the elapsed time. The SI unit for the flow rate is m3/s, but a number of other units for Q are in common use.

For example, the heart of a resting adult pumps blood at a rate of 5.00 liters per minute (L/min).

Note that a liter (L) is 1/1000 of a cubic meter or 1000 cubic centimeters (10-3 m3 or 10cm3). In this text, we shall use whatever metric units are most convenient for a given situation.

Hydraulic Hose Flow Rate Calculator

And I get the hydraulic hose flow rate formula here and hope this can help you a little to work out the hydraulic hose flow rate at ease.

Final Thoughts

This is all about the hydraulic hose flow rate, and it’s much more difficult to work out the result by yourself. No worries, we have an experienced expert to help your select the most suitable hydraulic hose for your hydraulic project.

Please feel free to contact us to get your desired hydraulic hose for your hydraulic system.

Get Your Desired Hydraulic Hose
Kingdaflex is leading hydraulic hose manufactgurer that you can trust, and contact us at any time to get full catalog.