Thanks IMM,
the gas-meter has something like Bes part no: 0981 - 22mm female capillary.
is a 22mm X 28mm reducer the best thing for this or replace 0981 with 0246.

All the diagrams I've seen show gas flowing from larger bore pipes to
smaller bore, I was a bit worried about the smaller bore at the meter.
Thanks,
Steve

"IMM" wrote in message
...

"sjj" wrote in message
...
I'm connecting a 35kW boiler to a BK-G4 meter that has a 22mm spigot.
Pipework to the boiler (the only gas appliance in the house) is 20
meters.
Using CIBSE to calculate the pressure drop I believe I need 28mm piping.

Question : Can I connect a 28mm pipe to a 22mm meter connection?
And if so whats the best method?

Thanks,
Steve.

Go to:
http://www.bes.ltd.uk

Assuming the meter horn has a 1" MBSP connection.

Part Nos:
0246 (direct to 28mm copper)
2415

If the meter has a 3/4" MBSP connection then:

Part Nos:
0260 (connects to 22mm pipe and have to insert a 28mm x 22mm reducer.
8720

Order few washers.