API 610th/ VS1/ Soleplate Installation into metallic structure

[Safe_cat]

Hi,

This is my first post into the forum since long time ago. I'm glad to be back

We're evaluating the best solution for an installation of a API610 VS1 pump, several services between 10 to 16 meters long, from soleplate level till the suction bell.
Normally for this type of pump will be installed into grouting, put in the correct place, leveling using jack screw and grout.
This time the situation will be different as the pump will be installed into a metallic structure, where we'll have metal against metal contact. We'll expect to leveling the soleplate using shims, but, we have concerns about the gaps between the soleplate and the metal supporting structure after shimming.

Is there any equivalent as API686 for offshore installation (I assume offshore installation has this type of situation? Is it possible to apply any type of grouting between metal surfaces? Any other suggestion?

Thanks,

 

[JJPellin]

I would consider making the sole plate thicker than normal and welding it down to the structure. Then I would field machine the top of the plate flat and level so no shims were needed. Do you have details on the steel structure that you will be attaching to?

Johnny Pellin

 

[Safe_cat]

Hi JJPellin,

Thanks for your valuable feedback. It could be interested to evaluate, the main issue could be the increasing of tasks at installation/commissioning. With standard anchoring it will be just leveling and screw the bolts versus welding and machining at place.

The structure where the pump will be located is a common structure steel painting. We normally request the rigidity matrix of the structure to perform verification of natural frequencies to avoid vibration problems during operation.

Thanks,

 

[spartan117]

Vibration issues aren't always resolved with the most rigid structures. It is more about getting away from the overall resonance at typical operating conditions. An modal analysis would certainly be needed including modeling the anchor bolts as the whole system is subject to mechanical resonance.

 

[JS_]

Maybe this would work.......Five star grout....

https://www.fivestarproducts.com/products/epoxy-grouts/hp-epoxy-grout.html