[ROVERNET - UK] P6B nuts and bolts specs
slatskars at comcast.net
Tue Nov 6 07:53:10 GMT 2007
----- Original Message -----
From: "Warwick Brooks" <warwick at regscom.com.au>
To: <rovernet at lyris.ccdata.com>
Sent: Monday, November 05, 2007 9:11 PM
Subject: RE: [ROVERNET - UK] P6B nuts and bolts specs
> Ah, thanks. Important points.
> With apologies to any plumbers, I've always found the following
> specification useful when ordering or designing equipment or
> Pipeline Specifications
> All pipe is to be made of a long hole, surrounded completely by metal.
> All pipe is to be made hollow throughout the entire length.
> The inside diameter must not exceed the outside diameter, otherwise the
> will be on the outside and the pipe will leak.
> All pipes over 250m in length should have the words "Long Pipe" printed
> clearly at each end, so that the plumber will know that it is a long pipe.
> Pipes over 5km in length must also have the words "Long Pipe" printed in
> middle, so that the plumber will not have to walk the entire length of the
> pipe to determine whether or not it is a long pipe.
> The labelling of the middle of long pipes must also face to each side so
> that the plumber does not have to walk all the way around the pipe to read
> the label
> All pipes over 150mm in diameter must have the words "Large Pipe" painted
> them, so that the plumber will not mistake them for small pipes.
> Where flanges are to be fitted, the flanges must have holes for the bolts
> quite separate from the big hole in the middle.
> When ordering pipe fittings from the supplier, be sure that 90 and 45
> elbows are specified as right-hand or left-hand otherwise you may end up
> with the pipeline going the wrong way.
> Do not mix screwed couplings with left or right-hand threads, otherwise as
> the coupling is being screwed onto one pipe, it will be unscrewed on the
> Be sure to specify level, uphill or downhill pipe.
> When ordering valves, remember that a red knob means hot, while a blue
> means cold. However a common trap for newcomers to the industry is that
> some valve manufacturers use green to mean cold.
> -----Original Message-----
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