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A simple differential pressure flow calculator that helps you find flow rate fast. Easy steps, clear formula, and quick results for liquid and gas flow.
Flow measurement can feel hard. Many tools look complex and slow. So we built a simple differential pressure flow calculator that gives fast and clear flow results. You don’t need deep math skills. You don’t need long charts. You only need your basic input values. The tool does the heavy work for you. You’ll get the flow rate in a snap.
Differential pressure flow means the flow rate changes when pressure drops across a point. This drop happens when the fluid passes through a small opening. It can be an orifice plate, a nozzle, or a venturi. When the pressure drops, the fluid speeds up. The higher the drop, the faster the fluid moves. This simple idea helps us measure how much fluid flows through a pipe.
Our tool reads your input. It converts units into one standard form. Then it uses the main differential pressure flow formula. This formula comes from Bernoulli’s law. It links pressure, density, and speed. The calculator also adjusts for the shape of the pipe and orifice. It works for both gas and liquid.
Here is the core formula in plain text:
Qv = C × ε × A × √(2Δp / ρ)
The code also finds the beta ratio. It is the ratio between the orifice and the pipe. It then finds the approach factor. This factor changes the speed based on how the flow shrinks at the orifice. Last, it multiplies the values and gives the flow rate.
The calculator follows these steps in order.
Mass flow is ρ × Qv.
Flow speed is Qv ÷ A.
Each step runs fast inside the code. You’ll see the result in a second.
You can use the tool without stress. Just enter pipe size, orifice size, pressure drop, and fluid density. Pick your units. If you work with gas, add your expansibility factor. Then hit the calculate button. The tool shows the flow rate, mass flow, and speed. You’ll also see each step of the math. This helps you check your values.
This tool keeps things simple. You don’t need long tables. You don’t need to guess. You don’t need a spreadsheet. You can use it on any device. It works fast and gives clean values. It helps students, engineers, and hobby users. Anyone who deals with flow can use it. You’ll save time and avoid long math.
This differential pressure flow calculator makes flow math easy. It uses a trusted formula. It shows clear steps. It works with gas and liquid. It gives fast and neat results. If you want a tool that saves time and cuts stress, this one does the job. Try it once and you’ll see how simple flow math can become.
It is the change in flow caused by a pressure drop across a small opening in a pipe.
A higher drop means the fluid moves faster. We use this change to measure flow.
Yes. You only need to enter the expansibility factor. The calculator adjusts the value.
No. The tool works for you. You only enter the basic values.
Yes. You can see each part of the flow equation. This helps you trust the result.