Re: High Temperature Piping Support Pads

From: <George>
Date: Wed Aug 17 2005 - 14:40:00 EDT

Al:
Thanks for reply. What we have here is a combination: adjustable pipe wedges plus clamp, attached to concrete support. The pipe usually has a wear pad bonded to the bottom, to avoid wear/corrosion between the pipe and support wedges. Same on the pipe clamp, has pad bonded. With temperature swing from ambient to 500 degrees, pipe grows longitudinally and moves in relation to clamp. Possibly could weld on a sacrificial pad, but I'm concerned about it galling and binding up to the clamp and support wedge. So, I am looking for a non-metallic pad/clamp liner that will live at the high temp.

George McKinney

• Original Message -----
  From: aluser2
  To: <a href="/group/PipingDesign/post?postID=YwPZatVMgjq4_FsPNKhU8YlA3Gh-iMS7ln_fZfe8xl9k9cg0Ho_XMyvTaDv8YqcdQf5kzPLSr22tDSRli0tewwld">PipingDesign@yahoogroups.com</a>
  Sent: Wednesday, August 17, 2005 2:25 PM
  Subject: Re: [PipingDesign] High Temperature Piping Support Pads
  

sorry george, dont understand
everybrand Fig 295 hgr good to 750F ++alloy to 1050F . some brands go
slightly higher.

whats wrong with steel on steel? it only gets tricky on high temp supports
>1200F such as for high press high temp steam and other specialty high temp
stuff.

if you need low friction use polished ss wear / slider plates for really hi
temp.

cheers
Al

• Original Message -----
  From: "George McKinney" <gmckinney@augustaeng.com>
  To: <PipingDesign@yahoogroups.com>
  Sent: Wednesday, August 17, 2005 11:44 AM
  Subject: [PipingDesign] High Temperature Piping Support Pads
  

> Anyone have any experience with high temperature pipe support/insulation
pads? I have a job that is heating natural gas to about 500 degrees (F),
for regenerating a dry bed dehydration unit. I have worked with EZline pipe
supports, clamps and wedge systems, which are variants of fiber reinforced
plastic (FRP), and limited to around 400 degrees. Any one have experience
in steam plants or such - teflon or other materials for lining clamps, or
what? I can try insulating pipe, but then I can't get a good solid
retainer/anchor.
>
> Bright ideas?
>
> Thanks
> George McKinney
>
> [Non-text portions of this message have been removed]
>
>
>
>
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[Non-text portions of this message have been removed] Received on Wed Aug 17 14:40:00 2005