Isolating radiator and draining

[tomsim]

If you shut the valve off on these. Do they allow the rad. To be drained without the rest of the system? If close the trv too. Thanks

 

[CBW]

Edited, for misleading information

 

[tomsim]

Thanks but if you turn the valve off on the valve I have put on. And then open the drain off. Will this just drain the rad. Or if you turn the valve off will it just drain nothing?

 

[Harry Bloomfield]

Turn the valve off and nothing will be drained.

 

[ianmcd]

Sorry I disagree, with the valve closed and the valve at the other end of the rad closed, that will drain only that rad, with the valve open it will drain the system, remember and open the air bleed point at the top of the radiator to allow the rad to drain

 

[tomsim]

Sorry I disagree, with the valve closed and the valve at the other end of the rad closed, that will drain only that rad, with the valve open it will drain the system, remember and open the air bleed point at the top of the radiator to allow the rad to drain

That's what I thought but wasn't 100percent hence the question

 

[terryplumb]

Closing that valve shuts of the connection to the system pipework. Opening the drain cock will drain the rad if the other rad valve is closed .
As Ian said above.

 

[ianmcd]

That's what I thought but wasn't 100percent hence the question

yes you are correct

 

[Harry Bloomfield]

Sorry I disagree, with the valve closed and the valve at the other end of the rad closed, that will drain only that rad, with the valve open it will drain the system, remember and open the air bleed point at the top of the radiator to allow the rad to drain

Yep, you are correct again - I misinterpreted which end of that fitted in the rad..

 

[ianmcd]

Yep, you are correct again - I misinterpreted which end of that fitted in the rad..

when I read yours and @CBW post , I thought I was wrong and had to go out and get one to try it

 

[CBW]

when I read yours and @CBW post , I thought I was wrong and had to go out and get one to try it

Sorry @tomsim, I’m obviously wrong. That’s how I thought they worked.