Hydraulic Pipe Size Calculator
Suction and discharge pipe inner diameters are calculated according to flow rate.
Fenitsa Pipe Diameter Calculation Tool
The Fenitsa Pipe Diameter Calculation tool is a fast, reliable, and user-friendly tool developed for engineers, technicians, and industrial design specialists. Users can obtain accurate pipe diameter calculation results by entering parameters such as flow rate, flow velocity, and pressure. Fenitsa simplifies the pipe diameter calculation process, minimizing the risk of errors and helping engineers plan their projects more efficiently.
Industrial Importance of Pipe Diameter Calculation
In industrial systems, especially in liquid and gas transport lines, pump systems, and automation lines, pipe diameter calculation is a critical factor for system performance and safety. The Fenitsa page, with its step-by-step guide and user-friendly interface, enables engineers to perform pipe diameter calculations quickly and accurately. This optimizes equipment selection, energy efficiency, and system performance.
System Optimization with the Right Pipe Diameter
The Fenitsa Pipe Diameter Calculation tool allows for the determination of pipe sizes suitable for system needs. Pipe diameter calculation directly impacts the selection of the correct equipment and energy savings during the design phase. This tool enables engineers to design safe, efficient, and high-performance liquid or gas transportation systems and optimize their projects.
Optimum Diameter of Pipe Formula
The optimum inner diameter of a hydraulic pipe is the one that keeps oil velocity inside the recommended range for the line type: small enough to limit cost and weight, large enough to limit pressure loss and heat.
d = √(4 × Q / (π × v))d (in) = √(0.408 × GPM / v (ft/s))
Recommended Velocities
| Line | m/s | ft/s |
|---|---|---|
| Suction | 0.5 – 1.5 | 2 – 4 |
| Pressure | 3 – 6 | 10 – 20 |
| Return | 2 – 4 | 7 – 13 |
Pipe Inner Diameter by Flow
| Flow | Suction @1 m/s | Pressure @4 m/s | Return @3 m/s |
|---|---|---|---|
| 10 L/min (2.6 GPM) | 14.6 mm | 7.3 mm | 8.4 mm |
| 20 L/min (5.3 GPM) | 20.6 mm | 10.3 mm | 11.9 mm |
| 40 L/min (10.6 GPM) | 29.1 mm | 14.6 mm | 16.8 mm |
| 60 L/min (15.9 GPM) | 35.7 mm | 17.8 mm | 20.6 mm |
| 100 L/min (26.4 GPM) | 46.1 mm | 23.0 mm | 26.6 mm |
| 150 L/min (39.6 GPM) | 56.4 mm | 28.2 mm | 32.6 mm |
| 200 L/min (52.8 GPM) | 65.1 mm | 32.6 mm | 37.6 mm |
Hydraulic Pipe Size – FAQ
How do you calculate hydraulic pipe size?
d = √(4Q / (π × v)). With Q in m³/s and v in m/s the result is in metres. In US units: d (in) = √(0.408 × Q (GPM) / v (ft/s)).
What velocity should I use?
Suction lines 0.5–1.5 m/s (2–4 ft/s), pressure lines 3–6 m/s (10–20 ft/s), return lines 2–4 m/s (7–13 ft/s).
What is the optimum pipe diameter formula?
For hydraulic lines the optimum diameter is the one that keeps velocity within the recommended range for the line type, balancing pressure loss against cost; use d = √(4Q/(πv)) with the recommended v.
