Some reasons include: assuring support is maintained where thermal piping changes can cause the pipe to raise or lower, limiting the resultant loads on equipment when connected to thermally cycling piping.
I can't think of a reason for a limit on the rod length, provided the rod has the necessary strength and the design considers the effects of dynamic loads.
I use the guideline of limiting swing to 4 deg. from vertical.
The design criteria is primarily for adequate strength, fit-up to the pipe attachment and structural attachment, material considerations related to strength and corrosion. Check with a supplier regarding standard rods and then select for the application.
Ken A. Nisly-Nagele, P.E.
Project Engineer, Mechanical
Applied Engineering Services, Inc.
7999 Knue Road
Indianapolis, IN 46250
317-585-8920
-----Original Message-----
From: satish [mailto:veera_satish@yahoo.com]
Sent: Monday, June 28, 2004 6:55 AM
To: pipingdesign@yahoogroups.com
Subject: [PipingDesign] Rod hangers?
Hi !
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.
Thanks for your help.
with regards
satish.
[Non-text portions of this message have been removed]
Yahoo! Groups Links Received on Mon Jun 28 10:46:00 2004
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