The pumping element in the Progresive Cavity Pumps comprises of a precision machined
single external helix metallic rotor and a double internal
helix elastomer stator. Due to special profile of Rotor and
Stator, a sealing line is formed along the axis of the rotor,
which is maintained at static or dynamic condition.
As the rotor turns within the stator, these cavities progress
from suction to discharge end of the progressive cavity pump carrying the fluid.
Distinctive Design Features and Benefits of Progressive Cavity Pumps
Positive Displacement
:
In progressive cavity pumps uniform metered and non pulsalting flow is
developed due to the progressive cavities generated
because of single rotating element. Head developed
is independent of
speed whereas capacity is
proportionate to speed.
Self-Priming
:
Progressive cavity pumps are inherently self-priming, can work on Snore & does
not
require foot valve.
Non-Clogging
:
Handles solids in suspension or mixture containing high
percentage of solids.
Low NPSH Requirement
:
Suction lift capability up to 9.5 mwc & effective
even in
high vacuum conditions.
Low internal Velocity
:
Minimum degradation of shear-sensitive media,
can handle highly viscous materials having pseudo
plastic characteristics.
Reversible
:
Progressive cavity pumps performs
with equal efficiency in either direction due to reversible rotation capabilities.
Silent Running
:
Rotor turns inside a resilient stator & thus
generates little noise in progressive cavity pumps
Separate Bearing housing
:
In progressive cavity pumps fluids can be pumped with no contamination.
