Yes can see that, so what would it need for 35mm ?
But it only needs 28mm, well, according to the photo anyway!!
Last time we needed a 35mm gas supply on a domestic install we changed the U6 for a bigger meter, if I recall correctly? That reminds me; I must renew my ACOPS gas ticket.
Perhaps the concept of a 'bottleneck' meter union is lost on you?
The point I'm making is if there is less than the allowed pressure drop across the pipework then there is no need for a 1" meter union
Surely you didn't fit a u16 just because you needed 35mm pipework with a demand of less than 6m3
Didn't someone just mention the industry being full of cowboys & chancers !!!!
Nothing wrong with fitting a higher capacity meter mate, granted 6m3 is a lot, but SGN were more than happy to do it!
The meter is supported by the pipe work & if you're so experienced, you never flagged that up fella!!! And, clearly you're not doing anything about it in your day-to-day job, time for some retraining I'd say........