Re:(PipingDesign) Pipe Stiffening

From: <Ravichandran>
Date: Wed Apr 03 2002 - 09:05:00 EST

Rough calculations based on ASME SEC VIII UG28 your pipe can with stand only about 6.7Psi external pressure. Provide two stiffener rings on equal interval.

Regards,

K.V.RaviChandran
Senior Piping Engineer
Foster Wheeler Eastern Pte. Ltd.

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Subject: (PipingDesign) Pipe Stiffening Author: "Ahmed Vawda" <SMTP:avawda@aksugar.co.ae> Date: 4/2/02 12:47 AM

Hello Forum Members

We've just installed low pressure vapour pipes and there is a concern over its strength to withstand the vacuum.
The pipe diameter is 780mm. Length 15 meters. SS304 5.5 mm thick. Pressure is normally at 250 mbara, but could drop to 100 mbara in cases of valve failure.
I'd like to know if it could withstand full vacuum.

Any one out there that could kindly advise (without liability off-course) on the need to stiffen the pipe.

regards

Ahmed Vawda
Process Engineer
Al Khaleej Sugar LLC - Dubai

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Your use of Yahoo! Groups is subject to <a href="http://docs.yahoo.com/info/terms/">http://docs.yahoo.com/info/terms/</a> Received on Wed Apr 03 09:05:00 2002