Chris,
The test presure is on the nameplate as is the working pressure. The problem is that the surge analysis has shown higher prerssures than the working pressure. It is thought that when the facility was built in the 1960's no surge analysis was done. The operators and owners have not gone back and re engineered the facility. It is only now when a new supplier wants to come on line that the surge analysis has been done.
I think this is a pre existing condition for the current operators. they have been blissfully unaware of non compliance.
My question is what would be the allowable pressure, including surge, according to ASME for this filter? I was thinking that the design pressure would be higher than the working pressure?
Geoff
Christopher Wright <chrisw@skypoint.com> wrote:
On Oct 27, 2005, at 2:43 AM, Geoff Stone DD&D Australia wrote:
> I am based in Australia. I have Fram Warner Lewis filters with the
> following reference
You might want to try wading through the Fram web site
<http://www.fram.com/>. I tried a search on Warner Lewis and got a lot
of hits but nothing I recognized right away (sorry--short attention
span) as a manufacturer. Try it--your mileage may vary.
My experience is that getting design information may be a problem
unless you're a big customer. Most manufacturers view all such things
as proprietary including the pedestrian stuff that anyone could do if
they felt like it. If the filter is meant to be a stationary
installation with a significant volume, it may have had to demonstrate
compliance with ASME code here in the states at some point. The fact
that there's a published test pressure that's 1.5 times the working
pressure is an indication that someone was thinking about the ASME Code
when it was designed. If the filter were in full compliance, it would
carry a code plate welded or perhaps stuck to the body of the filter.
How do you know what the test pressure is? Is there some kind of
document you could trace back?
Christopher Wright P.E. |"They couldn't hit an elephant at
chrisw@skypoint.com | this distance" (last words of Gen.
.......................................| John Sedgwick, Spotsylvania1864)
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[Non-text portions of this message have been removed] Received on Thu Oct 27 17:54:00 2005
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