×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Looking for pump isolation feet

Looking for pump isolation feet

Looking for pump isolation feet

(OP)
I'm looking to mount some large equipment on a concrete pad and the owner wants to isolate the equipment vibration from the concrete so the concrete does not powder over the years.  Any suggestions for existing vendors of such isolation or shock absorbing systems?

RE: Looking for pump isolation feet

Hi IFRs

You don't say what type of pump it is, or whats driving it, however what a company I worked for recently used to do
was mount the pump and driver onto a frame, which if required could have vibration isolation on the frame.
The frame was then bolted to the concrete floor with foundation bolts.

regards

desertfox

RE: Looking for pump isolation feet

(OP)
Sorry for the poor question.  It is a Busch Cobra 1000 (m3/hr) 3600 RPM twin-screw vacuum pump.  These 50 HP beauties vibrate with a concrete powdering frequency, so I was looking for some isolation device to prolong the slab life.

RE: Looking for pump isolation feet

Hi IFRs

Well I found there website and they claim these pumps run with low vibration and noise.
Anyway if you go to this site it shows a picture of one of these pumps mounted on a frame with vibration isolators.

http://www.busch.co.uk/p-ContactFree-Cobra.asp

You could contact them and see if they can help, to my knowledge, I think you have to know how much vibration you have in terms of displacement and or frequency before you can match vibration mounts.

regards

desertfox

RE: Looking for pump isolation feet

That drawing only makes me wonder why they need vibration isolators!  Its not to keep the earth from vibrating the pump.

That's a big piece of equipment to have essentially no foundation.  I'll bet the torque pegs the feet every time it starts, or does the torque load its putting on the pipe hold it in place?
 

http://virtualpipeline.spaces.msn.com

"What gets us into trouble is not what we don't know, its what we know for sure" - Mark Twain

RE: Looking for pump isolation feet

IFR....

In my opinion, you client is best served by purchasing the "normal and customary" equipment mounting scheme offered by the equipment vendor.

If necessary, have the vendor contact the client directly, and have whatever performance guarantee is necessary developed by the client.

If the vendor has been mounting his equipment a certain way for decades and can show many examples of the proper mounting with long equipment life, you can perhaps get your client to agree or back down.

Also, investigate the cost of vibration monitoring equipment added as part of the package. Ensure that the equipment vendor can give you setpoints for normal, and emergencey levels of vibration.

My thoughts only..

-MJC

   

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources