Getting back to you was the least I could do. I really appreciate everyone's help honestly; after I discovered it was rocks the first thing i thought of was "what am i gonna tell my buddies at eng-tips? they sure are expecting a more interesting failure (maybe I shold cause one lol)"
Honestly...
Hi guys,
We pulled out the pump and found rocks clogging the inlet. The rocks were all beyond 0.5 inches, which is why wee didnt see any solids in the discharge. The rocks were getting sucked in only when we had enough pressure (at 40hz), at which point they would get sucked and stuck in the...
Hello guys,
Sorry for building up your questions..had to be at site.
The pump is completely submerged in a deepwell. As soon as pump performance drops the level of the well starts to rise. The lack of intake is not an issue at all, as the pump is submerged in a deep deep well. The water table...
Hello to All Pump specialists,
We are on a mining project, and the site is filled with water. We have to dewater the site before mining by drilling wells and installing deepwell pumps. We started a one-pump dewatering test, and we have experienced a very funny behavior that we cannot explain...
I read your previous thread..what a long conversation. I can imagine that when you read my posting, you must have been thinking "NOT AGAIN!"
But you guys are really helpfull. I downloaded the software, and it does verify bidder A's range of U.
We are scheduled for a final clarification meeting...
Good Day to all,
I need a plate heat exchanger to heat water to 60 C from 49 C. The hot fluid is propylene glycol, 60 % by mass conc, with Temp of 90C at in and 70 C at out.
Flow rates for both are fixed: 6 m3/h for water, 4 m3/hr for pgly
2 bidders came back with different proposals. Both...
Why would you design it like that
if one pump is off, then that stationary pump is just uselessly adding losses as the water has to be pumped through these tight clearances.
if you think you need two pumps for that much extra head, you should get a bigger bowl and add more stages to the VTP...
Hi,
I know sterling engineres are easy to make. of course you have the headache of fabricating/outsourcing the parts and putting a good design together..but thats with making anything
I own a mini sterling engine. i bought it for about $100 from PM research (seen here...
when you say you measured the water temp for in and out, do you mean thats your spec, and you need the water to cool 40 tons?
is the calculation of 40 tons from actual results and you need to improve it? iam confused
to answer your question, if an electrical component is consuming 175kW, then...
FYI
VTP's do have much smaller clearances. Although his impeller was minimally trimmed, pumps were operating to the right of BEP! just a bit though.
But with VTPs, between the minimum and maximum diameter possible is usually a few percent (<10), so its that uncommon to see minimally trimmed...
Hi everybody,
First of all you guys form a great community.
My questions is: does anybody know the harms in having minimally trimmed impellers for vertical turbine pumps?
Some vendor is offering 6 stage pumps with impellers in stages2-6 to be trimmed to the minimum diameter possible.
It...
