Re: compressed air vs. screwed pipe

Why does any one thread 3" pipe?
We can weld two joints in the time it takes to thread one, and their is no where near the restriction in a welded line not to mention the fact that they are no pockets in the fittings for water to collect in. But I could be a bit biased.
Remember to oversize for future expansion, and an air header can never be too large the cost difference between 3" and 4" is slight. look in to it. grade the piping as much as you can and use plenty of drip legs, and drain traps. If you need high quality air look in to a refrigerated drier.

On Monday, September 24, 2001, at 10:08 AM, ljh@kochllc.com wrote:

> Hi, folks
>
> I have a quick and easy question.  We are planning a small retrofit
> of a compressed air blow-down system and the customer would like to
> use screwed (NPT) pipe for a distribution line.  If he uses 3"NPT for
> the distribution loop, would he be in compliance with ASME?
>
> Thanx
>
>
>

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[Non-text portions of this message have been removed] Received on Tue Sep 25 01:12:00 2001