Salt Water Pumping
Salt Water Pumping
(OP)
OK experts, here is a challenging one.
I need to pump 1200GPM at 20 TDH saltwater at 70F, on a continuous basis.
I am leaning towards a 316SS or Fiberglass type pump (at least until I hear from the pros).
Main question -- can anyone hone me in a mnaufacturer that is likely to make a suitable pump with good efficiency (say 78% or better) in the expected range.
Pump has to lift 2 to 4 feet depending on tide. Source is a salt water well, so water is pretty clear. I don't want to use any checkvalves, and it does run continiously, so once primed, it should be good to go.
Thanks to y'all, from Hawaii, PacificSteve
I need to pump 1200GPM at 20 TDH saltwater at 70F, on a continuous basis.
I am leaning towards a 316SS or Fiberglass type pump (at least until I hear from the pros).
Main question -- can anyone hone me in a mnaufacturer that is likely to make a suitable pump with good efficiency (say 78% or better) in the expected range.
Pump has to lift 2 to 4 feet depending on tide. Source is a salt water well, so water is pretty clear. I don't want to use any checkvalves, and it does run continiously, so once primed, it should be good to go.
Thanks to y'all, from Hawaii, PacificSteve





RE: Salt Water Pumping
Pumps considered were Sulzer from Switzerland, Hayward Tyler from the Uk and TKL from Australia.
I am sure the majors such as Flowserve or Goulds would have a unit to suit the application.
You can share knowledge but you cant share wisdom. Using knowledge wisely separates engineers from the enthusiastic amateurs that burden our society
RE: Salt Water Pumping
Bronze or cast iron is what I've seen used most often for seawater. 316SS is subject to chloride stress cracking.
RE: Salt Water Pumping
www.giwindustries.com
is a good place to start - they explain the different materials
Keep the wheels on the ground
Bob
showshine@aol.com
RE: Salt Water Pumping
Vacuum pumps and venturis are both used.
You may find a submersible is cheaper overall.
Steve
RE: Salt Water Pumping
This issue was discussed in another thread...
www.eng-tips.com/gviewthread.cfm/lev2/14...
Consider specification of a fiberglass casing pump.... FRP pumps offer excellent service under a variety of conditions....... MET-PRO has a division called "FIBROC" with a proven FRP pump design
I think that your requirements for an efficiency of 78% or better is not compatable with the flora, fauna, sand and muck that you will be pulling through the pump.....Efficiencies above 80% typically only apply to vertical axis, multi-stage centrifugal pumps.....you may have to settle for 55-70% efficiency
Also, the 20 TDH sounds very low (is it realistic ?)....Carefully examine where you end up on the pump curve for the pump you finally select....you do not want to end up with a maintenance nightmare
Seawater is nasty abrasive stuff, good luck
My opinion only
MJC
RE: Salt Water Pumping
The pump brand is "FYBROC" not "FIBROC"....sorry !!
RE: Salt Water Pumping
Thanks
PacificSteve
RE: Salt Water Pumping
In addition, you will not get 78% efficiency for this type of pump.
RE: Salt Water Pumping
In the petro industry (platforms) the manufactures are Schlumberger, Baker and Weatherford.
The link for Schlumberger is:
SLB.com
Once there do a search for REDA pumps.
The link for Baker is:
Baker.com
Once there do a search for Centrilift pumps
The link for Weatherford is:
Weatherford.com
Once there do a search for Weatherford ESP
Happy hunting!