Pump heads - Cast iron vs. Fabricated Steel Vertical Turbine pumps
Pump heads - Cast iron vs. Fabricated Steel Vertical Turbine pumps
(OP)
Hi, gang!
I am working on a WTP design including new High Service pumps. A former operator told the client that he should insist on cast iron pump heads, that fabricated steel ones would ultimately deform or flex and cause problems.
Any thoughts?
Thanks!
I am working on a WTP design including new High Service pumps. A former operator told the client that he should insist on cast iron pump heads, that fabricated steel ones would ultimately deform or flex and cause problems.
Any thoughts?
Thanks!





RE: Pump heads - Cast iron vs. Fabricated Steel Vertical Turbine pumps
Depends on a lot of things but i am assuming that when you say fabricated steel heads you are referring to the many manufacturers that now build multistage pumps out of stainless sheet with various bits bolted on or supported by cast iron brackets , base plates etc.
Those style of pumps generally work well and give many years of service, if selected correctly.
However the same applies to a cast iron pump.
Regards
Ashtree
"Any water can be made potable if you filter it through enough money"
RE: Pump heads - Cast iron vs. Fabricated Steel Vertical Turbine pumps
You should be aware that the manufacturers are constantly updating their products and it is be difficult to find the same equipment just a few years later.
RE: Pump heads - Cast iron vs. Fabricated Steel Vertical Turbine pumps
RE: Pump heads - Cast iron vs. Fabricated Steel Vertical Turbine pumps
It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)
RE: Pump heads - Cast iron vs. Fabricated Steel Vertical Turbine pumps
Thought - his/her preferred pump vendor used cast iron heads, and the operator wanted to spec everyone else out.
If you think a fab steel head will be floppy, spec a minimum wall thickness.
RE: Pump heads - Cast iron vs. Fabricated Steel Vertical Turbine pumps
When you're looking at at 1500 hp vertical motor on a 30" pump, you'll be hard pressed to find a cast head.
Face it, the manufacturers actually know what they're doing.