gas pipe sizing

[Inverness]

I can see the figures in your last post. But I thought .5 for each elbow and tee .3 for formed bend?

 

[Inverness]

I didn't know there is pin point figures from the bs6891 2015

 

[Inverness]

On the gastite website there is detailed pipe pressure losses for even couplings. Is this what you do for precise measurements?

 

[AlexGas]

I didn't know there is pin point figures from the bs6891 2015

It was new to me too. That's the latest British Standard.

 

[Inverness]

The book we have been given from college said this is all we need to know to pass. When did it come out?

 

[spanner]

Maximum allowance from meter to appliance 1mbar. From the meter work out the consumption rate of a a meter of pipe up to the maximum of 35mm diameter. The larger pipe bore the more retained.
Then reduce the sizing slightly further down the run. And not forgetting to + 0.5 of resistance for each and every fitting then adding in to actual length.