Double suction pumps piping
Double suction pumps piping
(OP)
I'm routing 12" or larger piping to (2) double suction pumps with 10" nozzle and a top/top configurations. I also have control valve, basket strainer and the block valves immediately upstream of the suction nozzle and running the suction piping perpendicular to the pump shaft centerline.
However, I cannot stack the piping components because of the piping configuration (vessel nozzle height, control valve access, etc.).
I need place an elbow right before the pump suction so that I can run my piping. So, would I also need to provide a 5-10 diameter straight run prior to the elbow?
Would it be better to place the reducer on the vertical run then place the elbow or place the elbow first, then install the reducer on the horizontal run?
However, I cannot stack the piping components because of the piping configuration (vessel nozzle height, control valve access, etc.).
I need place an elbow right before the pump suction so that I can run my piping. So, would I also need to provide a 5-10 diameter straight run prior to the elbow?
Would it be better to place the reducer on the vertical run then place the elbow or place the elbow first, then install the reducer on the horizontal run?





RE: Double suction pumps piping
A). Place the reducer on the vertical run then place the elbow as in 10" Flange, 12 x 10" Concentric Reducer then 12" elbow.
or
B). Place the elbow first, then install the reducer on the horizontal run as in 10" flange, 10" elbow then a 12" x 10" Eccentric Reducer
I would go with option "A".
RE: Double suction pumps piping
In our standards, we would require a minimum 5 pipe diameters (preferred 10 diameters) straight run between the pump and the elbow. Starting at the pump, it would be concentric reducer, straight pipe, elbow, strainer, valves.
Johnny Pellin
RE: Double suction pumps piping
http://issuu.com/sheenamundra/docs/power-feb-1992
RE: Double suction pumps piping
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