Hot water cylinder coupling?

This is the current setup at the top of our hot water cylinder:

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pipework coming out of it is 22mm, and you can see there is some kind of reducer in play there also.

I'm planning on fitting one of these tomorrow, which has a 1" bsp connection, male, or female with adaptor.

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having done anything like this before, I want to make sure I have all the right bits before I start the job. Will it be a simple task of removing everything that's there already and screwing in the flange? Or will I need to get an adaptor of sorts to allow me to fit the flange to the tank?

Is it likely I will find a 1" bsp female threaded hole at the top of the cylinder once all the old stuff has been removed?

Also, will I need to be cautious of any parts I can't see falling into the tank, like a male part of a coupler or something?

Thanks.

Reply to
Davey
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If you do have a 1" coupling at the top should be straightforward, I discovered my tank only had a 3/4" and I couldn't find anywhere that stocked a suitable essex/surrey or similar flange, so I fitted a warrix (sp?) flange,. worked nicely but rather an odd prospect taking a hole-saw to the side of a perfectly good HW tank.

Reply to
Andy Burns

This is the cylinder we have:

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litres, 1050 x 450mm

Reply to
Davey

From the look of your photo of the existing setup, the cylinder has a 1" BSP female boss in the top - into which is screwed a 1" male to 22mm compression fitting.

If you remove the existing fitting, and then remove the supplied female adapter from the flange, the flange will screw straight into the top of the cylinder. The only problem you will have will be getting the pump outlet to point in the right direction when the flange is tight. You may need to experiment with different thicknesses of washer. For good measure, when finally fitting it, put some liquid PTFE on the threads.

A 22mm vent/domestic hot water supply pipe will fit straight into the vertical outlet, making use of the supplied 28x22 reducing set.

Reply to
Roger Mills

On Fri, 4 Sep 2009 09:42:03 +0100 someone who may be "Davey" wrote this:-

To add to what has been said, you will need to reduce the length of the existing vertical vent pipe so that it fits into the new fitting. The vent pipe should be horizontal or rising. If you add the new fitting and bodge the existing vent pipe into it without adapting it then the vent pipe will run downwards. Given the amount of space careful use of a pipe cutter is advisable.

No.

I suggest that you start off by fitting the coupling and connect a short new length of pipe and a valve to it. Then you can restore domestic harmony by getting the hot water back on as quickly as possible. If there are no problems you can then do the pump and so on, eventually connecting it all up to this valve. If there are problems then you have time to sort these out. The same approach can be taken with the connection you will presumably be making to the cold water storage tank.

Reply to
David Hansen

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> 140 litres, 1050 x 450mm

I've got the 900 x 450 equivalent of that (just over a year old) and mine is definitely 1" BSP at the top, so yours will almost certainly be the same.

Reply to
Roger Mills

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>>> 140 litres, 1050 x 450mm

Appreciate your response.

Thanks.

Reply to
Davey

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