Re: pipe trunion and elevation of marked point ‘A’

From: <Gordon.Reddek@Alcan.com>
Date: Wed Jun 23 2004 - 19:17:00 EDT

Satish,

A trunnion is a little pipe welded out of the side of a main pipe, always used to support the main pipe. It is normally used to support a long vertical pipe. The standard details is that the vertical pipe passes through the structure with a support beam on each side of the pipe. Two small trunnions are then welded to the side of the vertical pipe and they (the trunnions) rest on the two support beams. They are like the cross stroke on a small "t". The Webster dictionary compares trunnions to the two gudgeons on the old fashioned cannon. They are the two pins on the side of the cannon that were used to rotate the cannon in the vertical plane.

You obviously have a drawing of a pipe with trunions on it that have to be located at a specific elevation so that they will be seated on suitable support structure. That is what the elevation "A" refers to.

Regards,

Gordon

Gordon Reddek
Specialist Mechanical Engineer
Alcan Engineering, Level 3, 443 Queen St, Brisbane, Qld 4001, Australia. Tel: +61 7 3328 6424
Fax: +61 7 3328 6990
Email: gordon.reddek@alcan.com

satish <veera_satish@yahoo.com>
23/06/2004 09:52 PM
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[PipingDesign] pipe "trunion" and elevation of marked "point ‘A’"

Can any one please tell me "WHAT IS PIPE TRUNION". And what is "ELEVATION OF MARKED POINT 'A'. Thanks for your help

Satish...

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[Non-text portions of this message have been removed] Received on Wed Jun 23 19:17:00 2004