Horiz. split case v. vertical turbine (thread 164-80905)
Horiz. split case v. vertical turbine (thread 164-80905)
(OP)
(I probably should have posted this question in this forum first)
Can anyone steer me to a good resource that actually lists pros and cons of horizontal split case centrifugal and vertical turbine pumps-specific not just general? I'm primarily interested in operations and maintenance, performance, efficiency, space requirements, ease of operation, bearings, motors, wear, repair, maintenance, owner/ operator preference based on ???, etc., with heads and flows of 300 ft and 5,500 to 7,800 gpm (90 m & 30,000 m^3/day to 42,500 m^3/day) ... I'm in a discussion with another colleague about an upcoming design project. He prefers horiz. split case centrifugals and I prefer vertical turbines. Maybe someone has a reference that actually documents maintenance activities, frequencies, and their associated costs. What about systems that changed out one type of pump for another?(thread164-80905)
Can anyone steer me to a good resource that actually lists pros and cons of horizontal split case centrifugal and vertical turbine pumps-specific not just general? I'm primarily interested in operations and maintenance, performance, efficiency, space requirements, ease of operation, bearings, motors, wear, repair, maintenance, owner/ operator preference based on ???, etc., with heads and flows of 300 ft and 5,500 to 7,800 gpm (90 m & 30,000 m^3/day to 42,500 m^3/day) ... I'm in a discussion with another colleague about an upcoming design project. He prefers horiz. split case centrifugals and I prefer vertical turbines. Maybe someone has a reference that actually documents maintenance activities, frequencies, and their associated costs. What about systems that changed out one type of pump for another?(thread164-80905)





RE: Horiz. split case v. vertical turbine (thread 164-80905)
What is the application?
Naresuan University
Phitsanulok
Thailand
RE: Horiz. split case v. vertical turbine (thread 164-80905)
RE: Horiz. split case v. vertical turbine (thread 164-80905)
rmw
RE: Horiz. split case v. vertical turbine (thread 164-80905)
My decision would be based on the application and the construct costs for this project, and as the supply to the pump inlet is from gravity tanks I would select the HSC pumps - easier to install and less civil works.
If on the other hand some of your projects are pumping from wet wells I would probably lean towards the vertical pumps.
To me - the decision would be based on capital costs, including real estate - equipment and the best hydraulic (efficiency) selection for the duty.
Naresuan University
Phitsanulok
Thailand
RE: Horiz. split case v. vertical turbine (thread 164-80905)
I agree with all of your comments, but do you know of a definitive source that lists these types of pros and cons? I guess the equipment manufacturers really don't care which pump they sell, so I'm not sure they would be the source of information I'm looking for. A manufacturer, however, might be a good source if they have accumulated this type of pro/ con information where they have either experienced great satisfaction with their products or dissatisfaction, even to the point where their equipment was replaced (VT for HSC or vice versa, or even by a competitor's pump).
RE: Horiz. split case v. vertical turbine (thread 164-80905)
Naresuan University
Phitsanulok
Thailand
RE: Horiz. split case v. vertical turbine (thread 164-80905)
Thanks!
Pete
RE: Horiz. split case v. vertical turbine (thread 164-80905)
for a duty of 3500ft TDH it would be very unlikely that a VT would be available for this application anyway.
As for comparing horizontal pumps to vertical pumps - a lot depends on what you are comparing - the difference between high quality VT and Horizontal pumps would be minimal - however, if you are comparing agricultural / irrigartion quality VT pumps then your comments would be correct. Quality VT pumps can be designed for a service life of 15 - 20 years without too much difficulty as can HSC pumps.
Naresuan University
Phitsanulok
Thailand
RE: Horiz. split case v. vertical turbine (thread 164-80905)
RE: Horiz. split case v. vertical turbine (thread 164-80905)
BigInch
-born in the trenches.
http://virtualpipeline.spaces.msn.com
RE: Horiz. split case v. vertical turbine (thread 164-80905)
I think the VT pump guys think that if you spec these pumps it is too late for any alternatives.
RE: Horiz. split case v. vertical turbine (thread 164-80905)
RE: Horiz. split case v. vertical turbine (thread 164-80905)