Side-By-Side Vertical Turbine Pumps - Min Center Distance
Side-By-Side Vertical Turbine Pumps - Min Center Distance
(OP)
I have an application that requires the installation of two side-by-side vertical turbine pumps. Under worst-case condiditions, both pumps will be operating at full load simultaneously. The pumps are identical - 725 gpm at 120 ft TDH. Can anyone provide a resource for recommendation on minimum center-to-center spacing for this type of application. I'm worried about cavitation problems caused by vortexing.
Thanks in advance.
Thanks in advance.





RE: Side-By-Side Vertical Turbine Pumps - Min Center Distance
RE: Side-By-Side Vertical Turbine Pumps - Min Center Distance
RE: Side-By-Side Vertical Turbine Pumps - Min Center Distance
rmw
RE: Side-By-Side Vertical Turbine Pumps - Min Center Distance
Phitsanulok
Thailand
RE: Side-By-Side Vertical Turbine Pumps - Min Center Distance
http://www.gouldspumps.com/pag_0007.html
Phitsanulok
Thailand
RE: Side-By-Side Vertical Turbine Pumps - Min Center Distance
http
RE: Side-By-Side Vertical Turbine Pumps - Min Center Distance
BigInch
-born in the trenches.
http://virtualpipeline.spaces.msn.com
RE: Side-By-Side Vertical Turbine Pumps - Min Center Distance
rmw
RE: Side-By-Side Vertical Turbine Pumps - Min Center Distance
american-marsh.com
RE: Side-By-Side Vertical Turbine Pumps - Min Center Distance
RE: Side-By-Side Vertical Turbine Pumps - Min Center Distance
These suggestions were obtained at http://www.mcnallyinstitute.com/14-html/14-12.htm
* Place a cone under the bell.
* Use diffuser screens.
* Use floating rafts around the pump column to break up the vortices.
* Float large spheres on the surface to break up vortices.
* Move the pump away from the wall.
* Increase the size of the inlet piping.
* Reduce the inlet velocity by spreading the flow over a larger area, or change the direction and velocity of the flow by the use of baffles.
* Eliminate the separating wall between pumps.
* Keep the inlet flow to the pit below 2 feet/second (0.7 meters/sec)
* Keep the flow in the pit below 1 foot/sec (0.3 meters/sec)
* Any type of a logical flow straightener will help reduce velocity.
Walter Hieber
PIB, INC. - http://www.thepumpbox.com