Re: Rod hangers?

From: <Gang>
Date: Wed Jun 30 2004 - 04:03:00 EDT

Paul,
Rod hanger
It is a simple case of transfer of clean vertically acting load. I mean clean in the sense that it does not have any torsion or bending. In such a case, the generally accepted range of tilt is a cone angle of 4 degrees with respect to the vertical. This facilitates a little amount of displacements in the axial or lateral directions.
Spring hanger
It is used when the load to be supported is generally of constant nature. It could be borne by a constant one or a variable one. Constant spring hangers are expensive and for that reason general preference, to the extent possible, is in favour of variable spring hangers. They are made with deflection ranges, 0 to 12 mm; 12 to 24 mm and 24 to 36 mm.
There are various executions of them; hanging from top, pedestal type, twin type etc. depending on the application.
Anything more? Please ask.
Good luck!
C. V. Gangadharan.

• Paul Bowers <pbowers@pipingdesign.com> wrote:
  > > Can any one please tell me at what
  > conditions we have to
  > use
  > > "spring hangers" and at what conditions we have to
  > go for " Rod
  > > hangers". And what is the normal acceptable
  > length of the Rod in Rod
  > > hanger. How much angle of swing we can allow in
  > Rod hangers. And
  > > what is the design criteria for rod hangers.
  >
  >
  > Here's a page on Variable Spring Hangers:
  >
  >
  http://www.pipingtech.com/technical/im/variable-spring-hanger.htm
  >
  >
  >
  

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