Positive Displacement Pumps For Diverse Applications

The Positive Displacement Pumps are versatile pumps that operate on the principle of positive displacement, i.e. holding a fixed amount of liquid in the expanding cavity and moving it through the shrinking cavity.

A range of PD Pumps follows this principle in their working.  

A Chemical Dosing Pump is one such pump. The Chemical Dosing Pump is a compact pump that is widely used to facilitate precise dosing. These pumps are primarily used to dispense chemicals, and inject the chemicals into water, gas or steam. An electric motor powers these pumps. A controller also forms a part of their machinery. It helps to control the flow rate of the liquid and turns the pump on and off.

One of the best Chemical Dosing Pump manufacturers is Roto Pumps whose Dosing pumps can successfully deal with applications with the minimum flow of up to 0.68 LPH. The highest flow handled by these pumps is 500 LPH. They can easily handle the pressure up to 24 bar.

Another kind of efficient PD pump manufactured and supplied by Roto are Helical Rotor Pumps which are used to transfer difficult media. A Helical Rotor Pump is known for its exceptional hydraulic capabilities. These pumps are highly popular owing to their ability to generate high pressures at low speed. They are widely used to handle shear-sensitive media as they can transport fluids without negatively affecting their quality and nature. This feature makes them highly suitable for the food industry. These pumps are extremely robust and work with the help of a helical rotor and a rubber helix stator.

The High Pressure Slurry Pump is another kind of PD pump that is used to handle the transport of difficult media. However, unlike Helical Rotor Pumps, they are used to transport unclean semi-liquids known as slurry. These pumps are powerful in their built as the nature of the media they are used for is highly aggressive.

The Slurry Pumps manufactured by Roto are incredibly economical and low-maintenance. They function with the help of a steel or elastomer impeller and a robust outer casing.