Hi Robin
do you think it may be a Victaulic connection? The valve looks a bit
flash for dunny pipe, but then again the bonnet bolts do appear to be
galvanised. I havent had much luck with Victaulics and superheated
steam. I blame the welders electrode choice; they select low hydrogen
hiten, but I reckon we need something softer to stick to rubber.
Pity the poor sod who has to open and close the valve; I reckon a good
10 minutes hard yakka each way. O Rotork; wherefore art thou? Judging by
the haircut of the technician, its either an old photo, a "YMCA"
workshop, or Pauls brother.
Cheers
Steve
-----Original Message-----
From: Robin Badcock [mailto:rbadcock@vision.net.au]
Sent: Wednesday, March 02, 2005 8:42 PM
To: PipingDesign@yahoogroups.com
Subject: Re: [PipingDesign] Big Valve Questions
Jeez Paul,
That valve is a snap to install, couple of hours only. The hard part is pushing the pipe with the rubber ring into the machined rebate (that you can clearly see in the photo).
The guy with the moustache is trying to figure out which bit to stick the delivery docket to and how he is going to get the cardboard box to hang together after it spends a week rolling around in the back of a freight truck.
Cheers,
Robin
>
> I wonder how long/how many passes it takes to weld this into the line,
> multiple shifts?
>
> http://www.pipingdesign.com/photos/large_valve.jpg
>
> The photo is from a Velan catalog, it's a 36", not sure of the rating.
>
> For this size valve, are welded ends the best way to go (as opposed to
> flanges)? The guts should be easily serviced through the bonnet.
>
> Paul
>
>
>
>
>
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