Shortest conversion 1.5" bsp to 22mm

[Spedley]

I have a 1.5" female BSP connection on the boiler which I want to connect a 22mm pipe to. What is the shortest way of doing this?

RS have nearly what I want but only up to 1" https://uk.rs-online.com/web/p/brass-copper-compression-fittings/4320342/

 

[Dan Robinson]

Why such a bug size differential?

 

[muggles]

1.5" to 3/4" bush, and a 22×3/4 MI

As with Dan though, I'm slightly concerned as to why you feel it's appropriate or sensible to reduce a boiler's designed pipework so significantly

 

[Spedley]

It's an old oil boiler, this is the 1.5" to 22mm currently on it and I want a bit more space. I've re-purposed the boiler to be a pool heater and the heat exchanger only has 22mm connections (so do most pumps). At some point I'm going to have to reduce to 22mm so doing it at the boiler makes the most sense - it's only a 5m circuit so circulation isn't a problem.

 

[Dan Robinson]

 

[magicmushroom666]

That fitting isn't especially long so I dont think you'll beat that, short of something being custom made which will be expensive. If this is a good idea or not...

 

[Spedley]

*Deleted*

 

[Spedley]

It is quite a bit shorter, gives me extra breathing space, however I got it wrong - it is 1.25" not 1.5". I don't know how I managed that. Doh!