Flow Restrictor
Flow Restrictor
(OP)
Have a 3 hp Gould 7GS20 installed. It is set at 641'; static is at 588' with a Franklin #282 302 8310 and a Dole flow restrictor of 7 gpm.
Already replaced the main overload and it has only been in place 3 months.
The previous pump did not have a flow restrictor, and pumped into the top of a 3500 gal storage tank at the rate of approx 10 gpm.
The previous pump quit for various reasons, none of which was related to the flow.
At 7 gpm, in order to keep up with the volume, the pump runs nearly constantly with normal usage. A fan must be run on the Franklin box to keep the main overload from tripping.
Thought about R and R the 7gpm with a 10 gpm. The purpose would be to reduce amp load.
Would this be the proper fix?
Already replaced the main overload and it has only been in place 3 months.
The previous pump did not have a flow restrictor, and pumped into the top of a 3500 gal storage tank at the rate of approx 10 gpm.
The previous pump quit for various reasons, none of which was related to the flow.
At 7 gpm, in order to keep up with the volume, the pump runs nearly constantly with normal usage. A fan must be run on the Franklin box to keep the main overload from tripping.
Thought about R and R the 7gpm with a 10 gpm. The purpose would be to reduce amp load.
Would this be the proper fix?





RE: Flow Restrictor
RE: Flow Restrictor
RE: Flow Restrictor
We've bought a few of these - AC Technology Corporation.Uxbridge, MA.
Our technical folks report they are quite reliable and phone tech support (all that we needed) is excellent.
No affiliation, just a satisfied customer.
Dan Timberlake
RE: Flow Restrictor
There should be no problem using the Dole valve to control the output of the pump. Check the amperage. If the amperage is normal and the overloads are tripping, the overload needs replacing. If the amperage is high, you probably have a cooling problem with the motor. There is either something wrong with the motor/pump, or it just needs a flow inducer shroud.
RE: Flow Restrictor
RE: Flow Restrictor
RE: Flow Restrictor
It is a Franklin 3 hp box. Just installed a 10 gpm Dole flow restricter, as well as a new run capacitor. 7 gpm flow restricter did not keep up with flow required and made pump run 12-14 hrs without shut-off.
Water temp runs in the high 80 degree F. range and outside air temp upper 90's F.
Original pump would run approx 3 hrs and shut off because storage tank was full. And it would be off 2-3 hrs before repeating cycle.
Did this for 14 years, until replaced with new Gould unit in Dec 06.
RE: Flow Restrictor
RE: Flow Restrictor
Hydrae
RE: Flow Restrictor
Thanks to all.