Motorised Valve Tripping house electrics

[king of pipes]

Replace the valve completely you may find it is getting stuck you wont know until you take it out 3 valve heads ? hmmm
Dont seem right some how . Kop

 

[Peter West]

It was the water, shorting out the switch in the valve head. all three switches had blown switches, the motors and travel are fine. Fixed now and all is working perfectly. It's my own fault for not suspecting the leak, it only happened when the system was cold, there was no leak in the hot running system. That's why it only happened at night. I recently moved in 18 months ago and inherited a very untidy system, with lots of gate valves that really should all be replaced, and are going to be. Gate valves should not really be used in a pressurised system, it was converted to a closed system a few years ago, so I'm told

 

[Ric2013]

Gate valves should not really be used in a pressurised system, it was converted to a closed system a few years ago, so I'm told

News to me.

Most pump valves are gate valves, and radiator lockshield valves often use the same traditional glanded spindle seal as a gate valve. Both are common in sealed systems. I cannot for the life of me see why use of a gate valve in a sealed system should be any less suitable than an open-vented system. Which is not to say that many, though not all, gate valves were scrap from the day they left the factory due to cost-cutting.

What brand of gate valves? Is there a maker's name?

 

[Peter West]

Only following the advice of my friendly plumber. Just to say I'm not in the trade and only have a layman's knowledge. So I'm ready to listen. May be he said that because they are crap, he prefers the lever ball valve. I can see why. The gate valve looks like the cheap generic sort of red handle one

 

[Ric2013]

As others are aware, I'm a rep for the Union of Gate Valves and Affiliated Obsolete Water Cocks (UGVAOWC). Many people on this forum hate gate valves with a vengeance, but we must remember that good quality gate valves are by no means a liability to be gotten rid of as a priority, hence my asking if there was a brandname on them.

 

[Chuck]

[...] we must remember that good quality gate valves are by no means a liability to be gotten rid of as a priority, [...]

I suspect that once the lever-operated ball valves have been in service for a few decades we'll start finding that they stick open or closed and trying to operate the lever shears off the shaft.

 

[Peter West]

The problem with the ones on my system is they leak. Especially when cold. They are OK if I tighten them and leave them, but if I happen to use them, that's it, they leak again.