Description
Puma Roots pumps follow the well
established principle of Roots type
machines. Two rotors with identi
cal profile rotate in opposite directions
within the casing. As they rotate, gas
is drawn in to the space between
each rotor and the casing where it
is trapped and then pushed out into
the discharge. There is no mechanical
contact between rotors and cylinder.
Therefore pump lubrication is not
necessary.
Puma Roots pumps have no me
chanical bypass. Therefore, the
max. allowable differential pressure
between inlet and discharge must be
respected.
Due to its characteristics, and desp
te high volumetric efficiency, Puma
Roots need a backing pump in most
applications..
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