1 reply to this topic

[bernath]

Dear All,

Need clarification on below statement,

"There should be at least 10 diameters between the suction line of the pump and the first elbow."

How about reducer? Can it be treated as well with 10D rule?

It's clear for me that straight pipe line is needed prior to suction flange for the purpose of reducing degree of turbulent before fluid entering the pump.

Elbow (or tee etc) means that the fluid will undergo the change of direction which cause turbulent while reducer means that the fluid will undergo change in sizing which cause turbulent as well.

In my opinion, it should be at least 10 diameters between the suction flange of the pump and the first obstruction (elbow, tee, reducer etc).

Please kindly let me know if I'm wrong.

Thank you
regards,
bernath

[ankur2061]

Bernath,

Refer the links below for the reducer installation and orientation in pump suction:

http://www.pipingdes...c_reducers.html\

http://www.mcnallyin...2-html/2-7.html

http://www.cheresour...r-pump-suction/

Regards,
Ankur.