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.
