Hi All,
I have been looking for information that would outline when it would be suitable to use a multistage pump versus a single or two stage pump. I have a scenario where I have two different manufacturer's for my Boiler feed Water pumps. The first set of pumps are Byron jackson, a two stage...
Guys, I got this quote from a website:
"Pumps are normally throttled with a discharge valve, but in rare cases it can be done with a suction valve.
1. You must have sufficient NPSH to prevent cavitation.
2. Suction throttling prevents the over heating caused by discharge regulation. This can...
Hey everyone,
I came across an equation to calculate the efficiency of pumps in parallel. It is as follows:
H*(specific gravity) x Sum of pump flow rates (gpm)
____________________ ____________________________
k Sum of total power to...
Hi all,
My company has an Allis-Chalmers motor and would like to perform a complete overhaul on this motor. We would like to purchase new bearings, but are not sure who is now the current supplier for Allis-Chalmers motors.
Any info would be greatly appreciated.
Thanks
Hi all,
With reference to my previous post thread407-176454 (Cooling towers and vertical pumps), I am designing a sump for the vertical wet pit pumps. I have thus far used the Hydraulic Institute guidelines but was wondering how to determine the depth of the sump. Keeping in mind that the speed...
Hi people,
I am new in the industry and have to justify replacing five horizontal pumps with three vertical ones. Let me expand.
These five horizantal pumps have been troublesome for the last 30 years with lots of bearing and seal failures and shaft breakage. These pumps are double suction...
Hi everyone,
I have been searching online for information about the effects of a worn cutwater/throat in pumps but have not been too sucessful. Can anyone help ?
Thanks alot.
