We previously introduced the working principle of differential pressure flow meters and the relationship between pressure and flow rate. Differential pressure flow meters calculate the flow rate by measuring the pressure difference across a throttling device, based on the principles of Bernoulli’s equation and the continuity equation of fluid dynamics.
When you order a differential pressure flow meter, you will also receive a differential pressure flow calculation sheet from us. Based on your actual measured pressure, pipe diameter, material, density, temperature, and other parameters, we will calculate the corresponding differential pressure range for your pipeline. This is used to configure a high-precision differential pressure transmitter for you.
We have created an online calculator for the relationship between differential pressure and flow, which can help you simulate and calculate differential pressure, flow rate, and mA output signal.
Differential Pressure to Flow Calculator
Calculate flow based on differential pressure values. Assumes flow is linear with mA output and non-linear with differential pressure. Results match your input units.
| Percentage | 0% | 25% | 50% | 75% | 100% |
|---|---|---|---|---|---|
| mA Signal | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Flow | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Diff. Pressure | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
Flow at 25% Range Point
This value matches your input flow units and demonstrates the calculator's core function.
Flow from mA Calculation
Calculated based on the selected calculation type and input value.
Of course, this is just a simulated calculator and cannot be used for actual production. In industrial processes, various types of differential pressure flow meters can be selected.
If you need to purchase a differential pressure flow meter, please provide us with the following parameters:
1. Measured medium
2. Minimum – Normal – Maximum flow rate
3. Minimum – Normal – Maximum pressure
4. Minimum – Normal – Maximum temperature
5. Pipe outer diameter and wall thickness
6. Pipe material
7. Medium density and viscosity
8. Installation method
9. Signal output
We at Sino-Inst are professional suppliers of differential pressure flow meters, supporting orifice plate flow meters, Annubar flow meters, V-cone flow meters, Venturi flow meters, etc. Please feel free to contact our sales engineers to discuss your requirements!




