booster pump
booster pump
(OP)
Hi all,
Maybe this is a stupid question...but help me anyway..
I have a pump with NPSHr approx 5 meter. The NPSHa is only 2 meter. It was a design mistake. Anyways, this pump capacity is 1500 m3/hr at about 10 bar.
To rectify this, I was thinking to install a booster pump upstream of this pump. Do I need to find a pump that also matches a 1500 m3/hr capacity (with lower head; proabably 5 bar)? or could i live with a lower capacity pump? Medium is water.
Thanks
Maybe this is a stupid question...but help me anyway..
I have a pump with NPSHr approx 5 meter. The NPSHa is only 2 meter. It was a design mistake. Anyways, this pump capacity is 1500 m3/hr at about 10 bar.
To rectify this, I was thinking to install a booster pump upstream of this pump. Do I need to find a pump that also matches a 1500 m3/hr capacity (with lower head; proabably 5 bar)? or could i live with a lower capacity pump? Medium is water.
Thanks





RE: booster pump
What would you be doing, if you knew that you could not fail?
RE: booster pump
If you choose the booster to have 5 bar DP you will have total pump DP of 15 bar in the system.
and you will get more that 1500m3/hr if you do not throttle the discharge.
RE: booster pump
Anything to do to improve the existing system?
- increase NPSHA in the suction system
- modify pump to obtain a lower NPSHR
- put another pump in parallel
The installation of a booster pump will lead to shutoff troubles in the discharge system and will increase the operating costs.
An analysis of CAPEX/OPEX should be done to compare alternative solutions.