Pumps are devices that moves fluids (liquids or gases), or sometimes slurries, by mechanical action.  They can be classified into three major groups according to the method they use to move the fluid.  Classifications like direct lift, displacement, and gravity pump.

They operate by some mechanism (typically reciprocating or rotary), and consume energy to perform mechanical work by moving the fluid.

Also, mechanical pump serve in a wide range of applications such as pumping.  SRS Pumps comes in different types from Centrifugal, Gear Type, Positive Displacement, Air Diaphragm, Lobe and Vacuum liquid ring types.

Centrifugal Pumps

Centrifugal pump is a sub-class of dynamic axisymmetric work-absorbing turbomachinery.  These pumps are used to transport fluids by the conversion of rotational kinetic energy to the hydrodynamic energy of the fluid flow.

The rotational energy typically comes from an engine or electric motor.  Fluid enters the pump impeller along or near to the rotating axis and is accelerated by the impeller.  It then flows radially outward into a diffuser or volute chamber (casing), from where it exits.

In addition, a Centrifugal is commonly used to include water, sewage, petroleum and petrochemical pumping; a centrifugal fan is commonly used to implement a vacuum cleaner.

Finally, the reverse function of the centrifugal pump is a water turbine converting potential energy of water pressure into mechanical rotational energy.

Gear Pumps

First of all, a gear pump uses the meshing of gears to pump fluid by displacement.  They are one of the most common types of pumps for hydraulic fluid power applications.

Also, Rotary Gear pumps are also widely used in chemical transfer pump installations to pump high viscosity fluids.  There are two main variations, Internal and External. 

The external gear pump which uses two external spur gears.  Internal gear pumps use an external and internal spur gears.

They are positive displacement (or fixed displacement), meaning they pump a constant amount of fluid for each revolution.  Some gear pump are designed to function as either a motor or a pump.

Lobe Pumps

They are used in a variety of industries including pulp and paper, chemical, food, beverage, pharmaceutical, and biotechnology.  

Also, they are popular in these diverse industries because they offer superb sanitary qualities.  It also has high efficiency, reliability, corrosion resistance and good clean-in-place and steam-in-place (CIP/SIP) characteristics.

In addition, a Rotary can handle solids (e.g., cherries and olives), slurries, pastes, and a variety of liquids.  If wetted, they offer self-priming performance.  A gentle pumping action minimizes product degradation.

Finally, they also offer continuous and intermittent reversible flows and can operate dry for brief periods of time.

Flow is relatively independent of changes in process pressure, too, so output is relatively constant and continuous.

Vacuum Pumps

It is a device that removes gas molecules from a sealed volume in order to leave behind a partial vacuum

SRS Vacuum pumps are Two stage liquid ring vacuum pumps capable of producing a vacuum to 29” Hg.   They are available in various materials of construction.  Materials like Iron, Bronze, Stainless steel. 
Moreover, pumps are provided with threaded, flanged and Tri-clamp connections for service liquid, draining, vacuum relief valve.   Optional items include inlet check valve, vacuum relief valve, flow control, solenoid valve, vacuum and temperature gauges.
The vacuum pumps can also come as completely packaged units.

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