“Industrial Process Company

Surat, Gujarat, India

Vertical Multi-stage Centrifugal Pump


Vertical Multi-stage Centrifugal Pump

BL(T) series stainless steel multi-stage centrifugal pump (afterwards called pump)boasts characters of high efficiency, low noise, steady operation, etc.The pump set adopts the non-self-priming vertical multi-stage structure, which makes a compact whole,its installation easy, its operation and maintenance convenient.

Shimge Pump Industry Group Co.,Ltd is a famous China vertical multi-stage centrifugal pump manufacturer and supplier, equipped with a productive factory and company, welcome to import high quality and economical Rosh CE and UL vertical stainless steel pump, vertical water treatment pump, vertical pressure pump from us.

Overview Of The Product

BL(T) series stainless steel multi-stage centrifugal pump (afterwards called pump)boasts characters of high efficiency, low noise, steady operation, etc.The pump set adopts the non-self-priming vertical multi-stage structure, which makes a compact whole,its installation easy, its operation and maintenance convenient.

Application Limits

◎ Medium temperature: normal type:0℃~68℃hot water type:0℃~120℃,

◎ Ambient temperature:+40℃,

◎ Max ambient pressure:1.0MPa,

◎ Advisable to use motor of higher power in case that the density or viscosity of medium is above that of water.

◎ pH: 5 to 8

Electric Motor

◎ Full-enclosed and ventilating two-pole standard motor

◎ Protection class: IP55

◎ Insulation class: F

◎ Standard voltage Single phase 220V-50Hz   Three phase:380/400V-50Hz

Calculation Of minimum Inlet Pressure

If the pressure in pump is lower than the vapour pressure of medium, cavitation will occur, which will affect the performance of pump. To avoid the cavitation and ensure the pump inlet has a minimum pressure, maximum suction head should be calculated as following:

H=Pbx10.2-NPSH-Hf-hv-Hs

Pb: Atmospheric pressure, bar (In close pipeline system, it can be considered as the system pressure );

NPSH: Net positive suction head, m (Value at maximum flow of Q-NPSH curve);

Hf: Suction pipe line loss (Value at maximum flow of corresponding pipeline);

Hv: Medium vapour pressure, m (Medium vapour pressure at corresponding temperature, the default medium is water, as shown in figure4 on the right );

Hs: Safety margin, m, general value is 0.5.

Calculation result: if H is positive, the pump is installed in suction way, otherwise, it is installed in downdraft way.

Note: It is not necessary to do above calculation under general conditions. Only when we use pump in the following situations do we need to calculate the H:

1. Medium temperature is high;

2. The velocity of flow is larger than rated value;

3. Suction head is big or inlet pipeline is long;

4. System pressure is small;

5. Inlet condition is bad.

Selection Of Pumps

Selection of pumps should be based on:

1. Duty point of the pump.

2. Dimensional data such as pressure loss as aresult of height differences,friction loss in the pipework,

3. Pump efficiency etc. 

4. Pump materials

5. Pump connections 

6. Commonly used mechanical seal configuration tables




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Contact Details

“Industrial Process Company

B-7, Shiv Krupa Society, B/h. Unique Hospital, Udhna,-394210, Surat, Gujarat, India

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