F & E tank, stopcock.

[secret squirrel]

Today, I had to deal with a radiator problem and whilst looking at the F & E tank, I saw a stopcock on the out let as well as one on the inlet from the mains.

I know the one on the mains to the ball cock is a legal requirement,

BUT, the one on the outlet is wrong (isn't it) I've never seen one there before. I removed it.

I have trouble thinking why its wrong but I'm almost sure that it is (99%) I'm having trouble articulating what I'm thinking........ so your views would be appreciated.

Thanks

 

[Mushybees]

The feed to the primary circuit is intended to take up the expansion in the heating system. If a valve were to be placed on the pipe it and it be closed it could be dangerous.

You did good.

 

[justlead1]

Hi, i is / was quite common to fit a gate valves on cold feeds. However stopcocks act as non return valves if fitted with loose jumpers. As has been stated, the cold feed needs flows both ways during the heating and cooling of a system.

 

[secret squirrel]

Thanks,

You've both put into words what I was thinking and couldn't write down.

 

[Bernie2]

Hi! Squirrel,

Just Lead is right it was common at one time to put stop cocks on feed and expansion cisterns but they should be gate valves not stop cocks. I don't think anybody does it now though.

 

[bigcheese]

I put a gate valve on the cold feed before I do a powerflush to prevent the tank from filling, but never a stop tap. I would have taken it off too mate.