Pneumatic Pump: Characteristics and applications - NAIJATWIST Pneumatic Pump: Characteristics and applications | NAIJATWIST Pneumatic Pump: Characteristics and applications - NAIJATWIST
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Pneumatic Pump: Characteristics and applications

Pneumatic pumps are generally known as positive displacement pumps that are double-acting with no return spring and can use many pressurized gases or fluids or as drivers. Pneumatic pump systems can make use of pressurized air or gas or to transfer media and in industrial applications such as water treatment, water treatment, pulp and paper, chemical sector, food processes and fertilizer dosing.

Because they make use of pressurized air to function, pneumatic pump have a relatively lower cost of ownership compared to other kind of pumps such as screw pumps, gear pumps, and pistong pumps.

A pneumatic pump has the function of creating a variable volume in the pumping chamber while the the suction phase increases and reduces the expulsion phase to expelled the liquid.
The operation is similar to the peristalsis of the stomach. Peristalsis is a radially symmetrical contraction and relaxation of muscles that propagates in a wave down a tube, in an anterograde direction. Peristaltic movement comprises relaxation of circular smooth muscles, then their contraction behind the chewed material to keep it from moving backward, then longitudinal contraction to push it forward

What are the characteristics of a pneumatic pump?
There are different types of pneumatic pump. Peristaltic pumps are one of them. These industrial pumps are used often in industrial applications that require fluid to be moved from one location to another.

Peristaltic pumps are a type of rotator positive displacement pump that has a roller o shoe that squeezes a tube as it rotates. The squeezing action moves the liquid along the hose.
They are generally used for special applications such as viscous liquids or liquids containing fragile solids. Also, fluid velocity inside a peristaltic pump is much lower than a centrifugal pump.

Pneumatic pumps don´t have impellers (rotor or wheel) and work within the following ranges:
Viscosity limits vary with pump type
Flow rate ranges between 1 and 15.000
Horsepower ranges between 0,5 and 5.000 hp

Industrial applications of pneumatic pumps
Pumps are needed to process the fluids, to accelerate them when they need to move at high rates of flow or to move them from place to place. Because there are so many different types of fluids used in industrial applications, industrial pumps come in all shapes and sizes, one of them are positive displacement pumps such as pneumatics pumps, rotator pumps including gear, screw, vane and peristaltic pumps.

This type of industrial pumps are specially designed for demanding oil and gas production applications, along with use in many other industries such as pulp and paper, fertilizer dosing, water treatment, and food processing.

Peristaltic pumps are ideal for applications where a constant flow is needed such as:

  • Wide variety of thin and thick liquids including corrosive liquids.
  • Wineries, sewage treatment plants, manipulation of solids and gases such as mercury and sludge.
  • They can be used for recirculation, cooling and in many applications where sealles pumpling is a plus.
Handle chlorine and other disinfectants in commercial swimming pools.

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