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Information on Vacuum Pumps from PPI Pumps Pvt. Ltd.


Information on vacuum pump that includes operation of vacuum pump, types of vacuum pumps, positive displacement vacuum pumps, momentum transfer vacuum pumps and entrapment vacuum pumps from PPI Pumps Pvt. Ltd., Ahmedabad, India – PowerPoint PPT presentation

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Title: Information on Vacuum Pumps from PPI Pumps Pvt. Ltd.

Welcome To PPI Pumps Pvt. Ltd.

Introduction about Vacuum Pump
Vacuum pump is used to pull air or gases from a
confined or sealed space. The air or gas is
sucked out leaving the space void of any or most
of the air or gas molecules.
Introduction about Vacuum Pump
Different forms of vacuum pumps are used in
household and commercial vacuum applications like
vacuum cleaning, vacuum sealing of food or other
objects which are damaged due to the harmful
elements present in the nature and much more.
Introduction about Vacuum Pump
Otto von Guericke was the one who for the first
time introduced to the world the ever first
vacuum pump in 1650. Pumping speed is the most
important factor on the basis of which vacuum
pumps are usually compared or measured.
Basic Operation of a Vacuum Pump
The basic principle behind working of vacuum
pumps is removal of air from the enclosed system
by suction to progressively decrease air density
within the confined space so that the absolute
pressure of the remaining gas drops and vacuum is
Basic Operation of a Vacuum Pump
A vacuum pump converts the mechanical input
energy of a rotating shaft into pneumatic energy
by evacuating the air contained within a system.
The internal pressure level thus becomes lower
than that of the outside atmosphere. The amount
of energy produced depends on the volume
evacuated and the pressure difference produced.
Types of Vacuum Pumps
  • There are basically three types of vacuum pumps.
  • Positive Displacement Vacuum Pumps
  • Momentum Transfer Vacuum Pumps
  • Entrapment Pumps

Positive Displacement Vacuum Pumps
In positive displacement pumps continuous
mechanism is employed for expanding a cavity.
Here the gases are allowed to flow in from the
chamber and exhausted to the atmosphere after
sealing of the cavity.
Transfer Type Vacuum Pumps
  • In transfer vacuum pumps momentum is created with
    a piston or propeller kind of device in the pumps
    which pushes the gas around the inner parts of
    the pump. The piston in the pump accelerates the
    gas and air molecules, creating an area of low
  • The gas and air molecules begin moving away from
    the low pressure region and escape through the
    outlet valve of the pump. When the desired amount
    has been removed from the chamber, a closure
    valve is put into place to prevent the molecules
    from being pulled back into the container from
    the pump.

Entrapment Pumps
To perform more effectively, trapping pumps or
entrapment pumps are usually placed inside the
space or container to be vacuumed. These types of
pumps work using chemical reactions. Some
entrapment pumps operate by removing the
condensation or thin film created by the
molecules in the air when they chemically react
to the internal surfaces of the pump.
Contact Us
PPI Pumps Pvt. Ltd. 14 16 E, Phase I,G.I.D.C.
Estate, Vatva,Ahmedabad - 382 445,Gujrat
(India). Phone91 (79) 25832273 / 4 Fax91
(79) 25830578
Thank You PPI Pumps Pvt. Ltd.