Pump control fittings

karltimber

Hi
Am fitting a pressure control valve to a rain water system.

The old fitting in the picture is 1¼ to ¾ - what's this fitting called ?
What do I need to attach it to the ¾ Flexi pipe ?

Other side - I need same 1¼ down to ½ - whats needed ?
Same fitting as above & what

Thanks

Wearb

karltimber wrote: »

Hi
Am fitting a pressure control valve to a rain water system.

The old fitting in the picture is 1¼ to ¾ - what's this fitting called ?
What do I need to attach it to the ¾ Flexi pipe ?

Other side - I need same 1¼ down to ½ - whats needed ?
Same fitting as above & what

Thanks

You could put a couple of inches of 3/4" copper on that and then a 3/4" 311.
For other side the same except a 3/4"X1/2" 311.



There might be a more elegant way to do it depending on the stock in your local shop.

karltimber

Found a few fittings - see pic.

Is the large fitting a 312 1¼ ? As herehttps://www.plumbingproducts.ie/female-compression-couplings-ireland/319-compression-female-iron-coupling-312-1-1-4.html
And is that the same as I have - reducing to ¾ ?

Thx

Wearb

Is the large fitting a 312 1¼ ? As herehttps://www.plumbingproducts.ie/female-compression-couplings-ireland/319-compression-female-iron-coupling-312-1-1-4.html

Yes

And is that the same as I have - reducing to ¾ ?

Thx

Photos can be deceiving, but the pump end of your 312 doesn't look as big as 1 1/4"

karltimber

Wearb wrote: »

Yes



Photos can be deceiving, but the pump end of your 312 doesn't look as big as 1 1/4"

It's the same picture for all the different sizes. Thanks

Wearb

karltimber wrote: »

It's the same picture for all the different sizes. Thanks

It's your original pic I'm thinking of. There doesn't look to be enough of a difference between both ends for compression side to be 2 sizes smaller than threaded side.

corkgsxr

Generally there 1" fittings on that sort of pump controller