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


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


Centrifugal Pumps




In addition, Centrifugal pumps are 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



Also, Rotary Gear pump are also widely used in chemical transfer pump installations to pump high viscosity fluids.  There are two main variations; external gear pump which use two external spur gears, and internal gear pumps which use an external and an internal spur gears (internal spur gear teeth face inwards, see below).

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





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



Vacuum Pumps



SRS Vacuum pumps are Two stage liquid ring vacuum pumps capable of producing a vacuum to 29” Hg.   The pumps are available in various materials of construction (Iron/Bronze, Iron/Stainless steel, All stainless steel). 
Pumps are provided with threaded, flanged and Tri-clamp connections for service liquid, pump 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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