Distance between pump suction intakes?
Distance between pump suction intakes?
(OP)
Hi,
I am installing two vertical 10000 usgpm centrifugal pumps in a salt water well (13'x 22'x 20' deep). The pumps were purchase second-hand and I have limited information on them. Due to constraints, I may have to put the intakes of the pumps about 6.5' apart. I am concerned that since the intakes of the pumps are relatively close together it may affect their performance. Does anyone have any suggestions? Thanks.
I am installing two vertical 10000 usgpm centrifugal pumps in a salt water well (13'x 22'x 20' deep). The pumps were purchase second-hand and I have limited information on them. Due to constraints, I may have to put the intakes of the pumps about 6.5' apart. I am concerned that since the intakes of the pumps are relatively close together it may affect their performance. Does anyone have any suggestions? Thanks.





RE: Distance between pump suction intakes?
The rules of thumb that I use for multiple suctions in a well are:
1. The centerline distance between two pump suctions should be equal to at least 3 x the diameter of the suction bell opening.
2. The centerline of a pump suction should be at least 1.5 x the diameter of the suction bell opening away from any vertical wall.
3. The bottom edge of the suction bell opening should be at least 0.5 x the diameter of the suction bell opening off the bottom of the tank.
I hope this helps you
RE: Distance between pump suction intakes?
do you happen to have the ansi/hi-9.8-1998 standard, if so do you have any equations giving the above stated requirements. if so that would be great.
RE: Distance between pump suction intakes?
International College
Naresuan University
Phitsanulok
Thailand
RE: Distance between pump suction intakes?
I can't believe your post has been sitting out there for two years and never got a star.
I just fixed that. Excellent information.
rmw