28mm y plan valve
- Thread starter jeggos
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28mm 3 port valves are still available,looks like you have bought one for 22 mm pipework.
Is it that the new one valve doesn't fit the old pipework and maybe the nuts? Are the pipe ends too long or too short to make the fitting?
The new one looks like 22mm, so take it back and swap it for a 28mm. You could take the old one to check the dimensions are the same, so it will fit OK, but I'd be surprised if it's any different.
The nuts for the new valve are clearly stamped or cast DANFOSS 28 MM to my poor old eyes. Body has HSV3B28 marked on it as well.
Old valve is a different brand or older iteration of the valve brassware casting?
So, to me, it seems Madrab's question needs answering.
I'd also ask if there are any maker marks on the old valve (other side) or even the nuts to help identify it.
Old valve is a different brand or older iteration of the valve brassware casting?
So, to me, it seems Madrab's question needs answering.
I'd also ask if there are any maker marks on the old valve (other side) or even the nuts to help identify it.
OK, I thought the new one looked smaller, but maybe it's just perspective. In that case, jeggos needs to say what the problem is, as per Madrab.
The bottom old one is a Sunvic 2706 which I think is obsolete.
And I've got the new danfoss HSV3B28 one at the top but the bottom flange is longer so the copper pipe will need reducing.
I think the side flanges are slightly wider too.
I was hoping to find a direct replacement.
Thanks for help
And I've got the new danfoss HSV3B28 one at the top but the bottom flange is longer so the copper pipe will need reducing.
I think the side flanges are slightly wider too.
I was hoping to find a direct replacement.
Thanks for help
If you're handy then it's relatively easy to accommodate the new valve - use a junior hacksaw to cut across the old olives till your almost through to the pipe. The use a plain screwdriver in the slot you've cut to snap the olive, that'll allow the old olive and nuts to be removed.
Then it's just a case of trimming the copper to size, tiding up the cuts ends and then on with the new nuts and olives to fit.
Then it's just a case of trimming the copper to size, tiding up the cuts ends and then on with the new nuts and olives to fit.
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