Supporting > Engine Ancillaries

Flanged pipework

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tel:
6 bolts? You are a real glutton for punishment Simon - 4 is plenty to do the job and look OK and makes for far less fiddling.

steamer:
Simon,

The other bit to keep in mind with a screwed connection is getting the bolt holes to line up.  You may want to consider a slip in soldered connection to the flange so that you can position the flange rotationally to align the bolt holes

The tubing will twist a bit once silver soldered as it is locally annealed once brought up to red heat.

Dave

smfr:
I chose six as a compromise. Peter Tarn's model (which is a constant inspiration to me) has 8 on the steam inlet pipes!



Some good tips here, folks, thanks!
Simon

Jasonb:
4 or 8 are the normal configuration that way any valves or fittings can be mounted vertically or horizontally. Full size flanges to the BS hole patterns are made that way with 12 holes on flanges for pipes over 12" dia.

J

Dan Rowe:
Simon,
6 bolt flanges are not really very common. I have made a bunch of gaskets like the ones John posted a sketch of and they work fine full scale.

Here is a link to pipe and flange sizes for several pressure ratings.
http://www.engineeringtoolbox.com/flanges-bolts-dimensions-d_464.html

Dan

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