How do I isolate a vertical pipe?

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Mark Wright - 15 Jul 2004 15:30 GMT

I've live in an older condominium, and I have the pipes for my
downstairs neighbors' (3 units) heat pumps running vertically through
a chase in my bedroom. When we upgraded the heat pumps to more
powerful, scroll-compressor units, they started transmitting a lot of
vibration to the walls, to the point where it's more or less
unbearable.

The vibration-isolation hardware I've seen seems to be designed to
isolate somthing from the surfave that it is sitting on top of, or
suspended from. How do people typically isolate something from the
surface next to it?

mark

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Noral Stewart - 16 Jul 2004 13:05 GMT

A couple of thoughts. First, the better systems have a flexible connection
and silencer section in the piping to reduce the pulses in the pipe. You
might investigate this option. The piping also should be isolated from the
structure as you say. The pipe is probable in direct contact with the
sturcture. It needs to be attached to the structure using a resilient
bushing around the pipe. A poor man's system that has worked well is to use
Armaflex pipe insulation as the resilient material.

> I've live in an older condominium, and I have the pipes for my
> downstairs neighbors' (3 units) heat pumps running vertically through
[quoted text clipped - 9 lines]
>
> mark

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Bill Nash - 07 Sep 2004 01:16 GMT

The link http://www.soundproofing.org/sales/pipe.htm might help.

BJ Nash

>I've live in an older condominium, and I have the pipes for my
>downstairs neighbors' (3 units) heat pumps running vertically through
[quoted text clipped - 9 lines]
>
>mark

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Natural Science Forum / Physics / Acoustics / September 2004

How do I isolate a vertical pipe?