Gas pipe sizing technique

[mutley racers]

 

[mutley racers]

Not sure why it had loaded twice

 

[ShaunCorbs]

are you asking the question or someone else ????

 

[mutley racers]

I am asking the question. I can't seem remember when to stop dividing by 3 and then divide by 2.

 

[mutley racers]

I am asking the question. I can't seem remember when to stop dividing by 3 and then divide by 2.

I actually mean x by 3 to get the length of pipe to see the gas flow rate for the size of pipe

 

[Paulplumb]

This will refresh your memory Mutley.

http://www.ukcopperboard.co.uk/lite...ion-Tips/Domestic-gas-planning-and-sizing.pdf

 

[mutley racers]

It's how to turn the pipe into how many sections that's confusing mee

 

[ShaunCorbs]

It's how to turn the pipe into how many sections that's confusing mee

the drawing you have supplied would be done into 3 sections (a-b) meter - to first t, (b-c) first t - 20kw appliance, (b-d) first t - 40kw appliance, hope this helps

 

[mutley racers]

But this is only.3 sections apparently

 

[Paulplumb]

A - f
B - c
D - e

 

[Dotty]

Yep.

Section 1 - Meter to tee 60kw

Section 2 - Tee to 20kw appliance

Section 3 - Tee to 40kw appliance

I think the logic books make pipe sizing confusing.

 

[gasmanrob]

Igeup are easier to understand imo

 

[mutley racers]

And how many sections is this

 

[ShaunCorbs]

View attachment 22040

and how many sections is this

4

a - h ( But for working out you add appliances g and e (kw/m3h) in as well)
b - c
d - e
d - g

 

[Dotty]

View attachment 22040

And how many sections is this

Seven.