These are available in single & double
stage and are oil sealed, rotary vane type positive displacement pumps
where, not only complete assembly is immersed in oil but shaft seal is also
designed in such a way that it totally eliminates the possibility of suction
of air through it. These are designed to achieve maximum vacuum in a very
short time and rise in temperature of the unit also remains under check,
which in turn reduces the wear and tear of its components and makes it
suitable for noiseless and trouble free performance for years and thus helps
in reduction of repair bills.
These pumps are very compact and are
so simple in design that all minor repairs, in case of need, can be carried
out easily without removing the main housing from its base plate and without
disturbing the alignment. In industrial models, or in vacuum pumps of higher
capacities which are operated continuously for very long spells of time the
oil gets heated either on account of friction or on account of heavy intake
of hot mixture of gas and vapours, the performance of the pump drops.
In
order to keep it cool, a jacket is constructed around three sides of the
pump housing, in which water is made to circulate for keeping the
temperature of vacuum pump under control and retaining the performance at
its best. In this model an inbuilt device, known as Gas Ballast is provided,
which effectively checks to a large extent condensation of the water vapours
which otherwise would not only had contaminated the oil, but had also
diminished the performance of the pump.
ApplicationsVacuum
Creation, Filling, Drying, Lifting, Forming, Filtration, Distillation,
Annealing, Impregnation, Dehydration, Sublimation, Film Coating & Many
More.
Specifications