10mm or 15mm inlet pipe?
- Thread starter nrage147
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The TRV is not bi-directional no and it's on the flow - water flow has to follow the direction of the arrow otherwise it would bang it's head off.
Could be a 10mm pipe with a 15mm reducer into the valve, use a knife and scrape off the paint, just to be sure.
Could be a 10mm pipe with a 15mm reducer into the valve, use a knife and scrape off the paint, just to be sure.
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When the heating is on, the _other_ inlet heats and this one remains stone cold. The radiator does heat.. but only along the top.
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It's a 15mm valve body ,so it looks like a fitting reducer has been soldered on. The pipe looks more like 12mm.
So.. If I want to replace the valve without touching the pipes, I need one with a 15mm inlet. Or.. I could cut the reducer off, clean off all the pain, and fit one with a 10mm inlet, right?
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Yes buy a 15mm valve,straight swap !
The answer to your second question would be yes ,if the pipe is indeed 10mm.
The answer to your second question would be yes ,if the pipe is indeed 10mm.
If there is enough pipe in the floor to pull up and stretch and if you manage to find a native 10mm TRV.
As suggested though, it could be a much rarer 12mm pipe. Scrape the paint off both side of the pipe then measure side to side on clean copper.
^^ This means it's the wrong valve in the wrong orientation, right? No idea why I'm not hearing any banging...
That is what I am thinking too.
Just lucky.
It is incorrect instal for direction of flow.
TRV valve chatter when it about to close is quite common. To instal it against flow will make the situation worst.
If your instal is trouble free, just luck old chap
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