Points to keep in mind while purchasing split casing pumps

A pump can be described as a hydraulic operating machine which enhances the overall mechanical power of a fluid. Pumps are fundamental devices that transform cold and hot fluids in a condensed system and are the basis of the modern world.

The sheer specialty of these split casing pumps lies on the procedure of moving slurries or fluids which run through them impeccably from a higher level to lower level. Throughout the years, the pumps have incorporated themselves like the staple devices of colleges, households, commercial complexes, hospitals, etc. Nowadays, one can come diagonally a pump fixed for a plethora of reasons, for example, water supply, chemical movement, gasoline supply, flood control, marine service, etc. in urban as well as rural areas.

These pumps are either horizontal split casing pumps, vertical split casing pumpsor centrifugal split casing pumps. These types of pumps are further divided into 2 types, viz. single stage horizontal/vertical pumps and multistage horizontal/vertical pumps Every single stage pump is provided with double suction sort impeller. Both double stage/single stage pumps are fixed with mechanical seal. A lot of aspects plays an important role while choosing a right split casing pump. We have listed some points below which you should follow:


The pump head denotes the enlargement in energy obtained by 1 liter of fluid between the output and the input section of the pump. It is symbolized by the H letter and is calculated in meters of transmitted liquid or J/kg. To make out the head rating of a pump, search for a data shield which specifies the total head (Ht), discharge head (Hd) & suction head (Hs).

Flow Rate:

The stream rate of a pump is the functional volume of fluid dispensed by the pump into the time unit. It is generally symbolized with the letter Q and is calculated in the units: m3/s, m3/h or LPM.


The control imparted into a liquid increases the force of the fluid for each unit volume. Therefore, power relies on the transfer of the mechanical power of the fluid elements and pump mechanism present inside the pump. It is another critical thing to be noticed it is the effectiveness of a pump (ηp) to be exactly the ratio between the power Pactl absorbed by the pump and power P supplied to the fluid the (that is the automatic power transmitted by the electric motor):

 ηp = P/Pactl


The rotating speed of a pump is the amount of uprising carried out by the pump in a permanent time unit. The speed is symbolized with the ‘Ns’ letter and calculated in Revolutions Per Minute (RPM). Generally, pumps are fixed with a 2-pole induction speed. If the average management of the motors as well as the electrical power dispersed in the mains includes a frequency of more than 50 or 60 Hz.

Net Positive Suction Head (NPSH):

If you would like to purchase a centrifugal pump, then NPSH is the leading parameter that should be regarded without fail. NPSH points out an inability of a centrifugal pump to create an unconditional vacuum as well as suck at higher than or height equal to 10 meters.

So, the points mentioned above clear your doubts and help you to decide to buy split casing pumps.