The cold box and the internal piping was all aluminium. SS flanges were used with aluminium stub flanges for the connection points.
<tt>
Do you mean that the prefab cold box arrived with aluminum flanges<BR>
as connect points or that the internal piping was aluminum?<BR>
<BR>
Paul<BR>
<BR>
<BR>
----- Original Message -----<BR>
From: "Geoff Stone DD&D Australia"
<blenrayaust@yahoo.co.uk><BR>
To: <PipingDesign@yahoogroups.com><BR>
Sent: Monday, March 25, 2002 12:19 AM<BR>
Subject: RE: [PipingDesign] Mil-spec question?<BR>
<BR>
<BR>
[...]<BR>
<BR>
> As far as Belleville washers are concerned I have used these<BR>
successfully on an<BR>
> LPG cold box where the piping was aluminium with MSS stub<BR>
flanges and 316 ss<BR>
> backing rings. All the bolts were torqued up. We made damn sure<BR>
that the<BR>
> threads were to specification using QC gauges, lubricant/"never<BR>
sieze" was<BR>
> applied and they werent dropped in the desert before they were<BR>
assembled.<BR>
<BR>
<BR>
</tt>
<br>
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