Formula to Calculate Hydraulic Pump Flow and Application

Hydraulic pump flow calculation formulas help you better understand flow, pressure and capacity. These parameters are calculated based on the system's needs. Usually, hydraulic pumps only display specific flow rates, such as the flow rates of gear pumps, piston pumps and vane pumps, without specifying the actual flow rate. To better understand the flow calculation formula and its application, learn with Truong Linh Parts through the article below.

1. Formula to calculate the flow of a hydraulic pump

The amount of oil that the hydraulic pump supplies to the system in a certain period of time is called the flow rate of the hydraulic pump. This flow rate affects the velocity of the oil flow.

The flow rate of a hydraulic pump is usually calculated based on the size of the pump and its rotation speed.

The basic formula to calculate the pumped hydraulic oil flow is:

Q = q x n

Flow rate (Q)

q: specific flow

n: number of revolutions of the engine.

In there:

Flow rate (Q) is measured in liters per minute (LPM) or gallons per minute (GPM), depending on the unit you use.

Speed (N) is the pump's rotational speed, usually calculated in revolutions per minute (RPM).

Formula to calculate pump pressure

Pump pressure represents the pump's ability to create thrust for cylinders or other hydraulic motors. We have the following formula:

P = F/S

In there:

F: force needed to push. Unit: N

S: area of piston. Unit v: m2

P: pressure. Unit: N/m2. In which 1 bar = 10^5 N/m2 (this is the more commonly used unit)

Calculate the capacity of the machine to choose a hydraulic pump

To calculate the capacity of a hydraulic pump, we can use the formula N = P/(Q x 612) where P is the pressure (unit bar), Q is the pump flow (unit liters/minute) and N is the pump capacity (unit Kw). However, with accurate calculations, we need to ensure that the input parameters are measured accurately and completely. Wishing you success in calculating hydraulic pump capacity!

The application of this formula is to calculate the flow of hydraulic oil pumped from the hydraulic pump to other components in the hydraulic system such as cylinders, valves, or motors. This helps evaluate the hydraulic pump's capabilities and ensure that it is large enough to provide the flow required for your specific application.

2. Calculate applications of hydraulic pumps

Hydraulic pumps have many important applications in many different fields due to their ability to provide high pressure and flow. Here are some common applications of hydraulic pumps:

Machinery manufacturing industry: Hydraulic pumps are widely used in industry to provide pressure and flow to operate industrial machinery and equipment such as presses, metal cutting machines, plastic injection machines, and woodworking machines.

Construction and infrastructure: Hydraulic pumps are used in construction to lift, move and place large components such as columns, beams and foundations. They provide the strength and control needed during construction.

Automotive and transportation: Hydraulic pumps are used in special vehicles such as forklifts, heavy goods trucks and construction vehicles to control systems such as lifting platforms and steering systems.

Construction and lawn mowers: Construction machinery such as loaders and excavators use hydraulic pumps to operate functions such as lifting, digging and moving soil.

See more: Formula to Calculate Hydraulic Pump Flow and Application

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