Gas pipe sizing

This is where the industrial and domestic are different Chris, it matters a lot.

The actual Drop at the appliances are.

C 0.65

E 1.35

F. 1.39

E or F would not be acceptable.

In a domestic installation you will know best, as to whether you could get away with it or not.
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doitall said:
A-B 1MB.
B-C 0.62MB.
B-D 2MB.
D-E 1.2MB.
D-F 1MB.
According to your previous post the pressure drop from A to F was 1.0 + 2.0 + 1.0 = 4.0 mb. Now you are saying it's 1.39 mb.

Which is wrong? :evil:
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Start with a few lengths of 35mm, been allowed for domestic since 2005. Only thing you'll find is you probably wont get a 35mm meter union so go with a 28mm and step up to 35mm straight off the union.

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