2 replies to this topic

[jawbkk]

Good morning,
We are in the process of installing a new centrifugal pump which will be fixed to an existing steel support structure.
I have read somewhere that the mass of a concrete support plinth for a centrifugal pump should be 3 x the pump mass. The pump in our case is 4600kg and the motor is 5875kg. (the motor is mounted on a support frame which also sits on the support structure)
Also I have read that two lines should be projected downwards at 30 degrees from the vertical and that the two lines should pass through the plinth base and NOT the sides.
In this case, we don't have a plinth but a steel structure.
Do the same rules apply?
Is there a different set of guidelines for steel structures as opposed to concrete plinths?
I am concerned about possible vibration issues which are specified at 11mm / second RMS.
The max speed of the pump is 750 RPM.
Please see attached sketch.

Regards
John

Edited by jawbkk, 13 December 2012 - 04:11 AM.

[ElSid]

Please attache sketch

[jawbkk]

Hi ElSid

Unfortunately it doesn't look like I can upload my pdf sketch hence why not attached!!