Could this be valve fore draining heating system?? See picture

[bazza1410]

could this be the valve for draining down the central heating system. There is a pipe outside the back door leading up to the airing cupboard and seems to go to this valve.

 

[Chalked]

It looks like a " plug cock" So should be for draining.
What is it connected to?

 

[bazza1410]

I dont really know. I need to drain the heating system tomorrow and was hoping this is the drain valve as i cant find one downstairs anywhere but as i said there is a pipe at back door which is so low i can only imagone its for draining the heating system.

 

[Dogby]

Trace the pipe behind the cylinder and identify what it's connected to, do you have other pictures? Failing that , try it, if it goes outside you won't do any damage only drain some of the heating circuit.

 

[bazza1410]

I think its the return to the boiler its connected to. Hard to tell its very tight in there.

 

[bazza1410]

Its the cold water feed to tank so im guessing this is to isolate the cold feed to tank.

 

[bazza1410]

Ok so the pipe outside actually goes into the boiler. I take it i cant drain heating from here?

 

[Dogby]

Definitely not it's the gas pipe.

 

[bazza1410]

of course it is. I just took a rad off much easier.

 

[Last Plumber]

I think it's the drain cock for the cylinder

 

[bazza1410]

I thought it was the cold water feed. It goes into the bottom of the tank and appears to be part of a pipe that goes up up into the attic.

 

[Chalked]

I thought it was the cold water feed. It goes into the bottom of the tank and appears to be part of a pipe that goes up up into the attic.

That will be the cylinder drain then :bulb2:

 

[Old Account]

could this be the valve for draining down the central heating system. There is a pipe outside the back door leading up to the airing cupboard and seems to go to this valve.

If you are unsure You could get a self tapping drain off once it's drained take it off and fix the pipe with a proper drain off

 

[Last Plumber]

That ( if I'm right ), looks like a permanent drain connected into the bottom of the cold feed to the cylinder. The other end will be piped through to an outside wall. I see a lot in my area.
Have a look around outside for 15mm pipe sticking out the wall.