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Suction Header Design

Suction Header Design

Suction Header Design

(OP)
Please can any body help me to calculate the dia of main suction line to three pumps (and the Equations used for the calculation).

PUMP capacity is 350 m3/hr
pump suction nozzle is 8 inch dia
the service is water @ arround 38 degree C



Regards,


RE: Suction Header Design

To keep the velocity in the inlet header at the same 9.84 ft/sec inlet velocity to the three pumps you need a 13.86 inch ID header if the 8-inch pump inlet diameter is in fact the ID and not the OD of the piping. The magical equation is Velocity =Flow/Area. Don't you have a calculator and a set of conversion factors?

RE: Suction Header Design

For me the issue is not velocity but pressure distribution. I would select the header sizes so that irrespective of the pump combinations in service each pump had the substantialy same flow

RE: Suction Header Design

Utlaan!

Maintain 0.5m/s to 1m/s velocity in suction line.

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