Our OneHydraulics line sizing calculator helps you determine how fast fluid is moving through a hose or pipe, making sure it's within safe and efficient limits. Here's how it works: you enter the flow rate (how much fluid is moving), the inside diameter of the pipe or hose, how long the hose is, and details about the fluid like its thickness (viscosity) and weight (specific gravity). Then, when you hit calculate, it gives you key results like fluid velocity, reynolds number, friction factor, and pressure drop, all defined below. It’s a quick way to check that your hydraulic or pneumatic system is set up efficiently!
Terminology Defined
Fluid Velocity
The Reynolds Number
Friction Factor
Pressure Drop
How fast the fluid is moving (measured in feet per second).
Dimensionless value used to predict the flow pattern of fluid in a pipe or over a surface. It helps determine whether the flow is laminar (smooth and orderly) or turbulent (chaotic and mixed). If the number is low (usually below 2,000), flow is laminar; if it’s high (above 4,000), flow is turbulent. Between those numbers, the flow is in a transition zone.
Measures how much friction is in the system, which can slow the fluid down.
Shows how much pressure is lost as the fluid moves through the pipe or hose, which helps in sizing the system properly to avoid performance issues.
Disclaimer: The calculators provided on this site are for reference purposes only. OneHydraulics makes no guarantees regarding the accuracy, completeness, or applicability of the data generated. Users are responsible for verifying the results and ensuring the safe and satisfactory operation of any equipment designed based on this information. OneHydraulics assumes no liability for errors, omissions, or any outcomes related to the use of these tools. Always consult a qualified professional for critical system designs or safety-related applications.
Still need help? Give us a call at 281.941.2310 or email us at sales@onehydraulics.com for technical support.