What Is A Commercial Pump And What’s its benefits?

Posted on Mar 10, 2019

A Commercial Pump And its benefits

A commercial pump is a type of pumps that moves fluids-state substance through its mechanical action, and is used for commercial purposes. Depending on how the commercial pumps moves fluid, the pumps can be divided into three main models.

What Is A Commercial Pump And What’s its benefits?

Commercial Pump

What is a commercial pump?

A commercial pump is a type of pumps that moves fluids-state substance through its mechanical action, and is used for commercial purposes. Depending on how the commercial pumps moves fluid, the pumps can be divided into three main models.

:: Read more : A Brief Introduction: What Is An Industrial Pump?


Pump classifications

These three types of commercial pumps are determined by the way they move the fluid, and there are direct lift, displacement, and gravity methods. That is, there are direct lift pump, displacement pump, and gravity pump respectively. Commercial pumps are usually operated by a reciprocating mechanism or a rotary mechanism, and consume energy to perform mechanical work that moves the fluid, thereby improving fluid transmission performance.

There is another type of commercial pump. That is, immersed in the fluid they pumped or placed outside the fluid. Displacement methods of commercial pumps can be divided into positive displacement pumps, impulse pumps, velocity pumps, gravity pumps, steam pumps and valve-less pumps, etc. The more common ones are positive displacement pumps and centrifugal pumps. These classifications are based on theoretical and commercial manufacturing, respectively.


Power sources

Commercial pumps can be driven by many power sources, such as manual operation by field operators, electricity, engines, or sustainable energy sources such as wind power. These energy sources can come from a variety of equipment, of varying sizes, such as medical microscopes, large industrial pumps for water supply systems, machine tool coolant transmission equipment, and so on.

Pumps for commercial purpose have a wide range of applications, such as pumping water from wells, aquarium filtration tasks, pond filtration tasks, water cooling and fuel injection in the automotive industry, and oil and gas transportation in the energy industry.


Machine tool application

In the field of machine tools, pumps are used to transport cutting fluids and coolants. Therefore, the pump is considered a necessary component of the machine tool, not an optional component. The density of coolant and cutting fluid is a key factor in the selection of pumps. Users must understand their nature and operation methods to choose the best pump solution.

:: Read more : Industrial Pumps Categories: Introduction and Applications


Another way of classification

The number of impellers determines the working mode of the pump and the strength of liquid delivery. A pump that contains only one revolving impeller is called a single-stage pump, while two or more revolving impellers are called a two-stage or multi-stage pump. In applications in the biological field, many different types of chemical and biomechanical pumps have been developed. BIOMIMICRY is sometimes used in the development of new mechanical pumps. Just like in the early days, people tried to study birds to achieve human flight.


Displacement model

The positive displacement pump draws a fixed amount of liquid and directs it into the discharge pipe to move the fluid. Generally, positive displacement pumps use expanding cavity on the suction side and decreasing cavity on the discharge side. With this method, when the cavity on the suction side expands, the liquid flows into the pump, and when the cavity collapses, the liquid flows out from the discharge port. The fluid volume is constant through each cycle.


What’s important for positive displacement?

A positive displacement pump can produce the same flow at a given speed, regardless of the discharge pressure. Positive displacement pumps are constant flow machines. But in fact, as the pressure increases, the internal leakage will increase slightly, thus preventing the constant flow. In other words, since the positive displacement pump does not have a shutoff head like a centrifugal pump, the positive displacement pump cannot reversely close the valve on the discharge side of the pump.

In this case, the positive displacement pump continues to generate flow, and the pressure in the discharge line continues to increase until the line bursts, which will seriously damage the pump. For safety reasons, it is usually necessary to install a relief or safety valve on the discharge side of the positive displacement pump. The safety valve can be internal or external.


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