Lockshield Valve Fixed Cap

[Eh_Dinna_Ken]

Hi, I have fitted a new radiator to our bathroom as the previous one had corroded and basically didnt work. Having refitted the existing valves to the new rad I am having trouble getting consistent heat... I cant balance the radiator as the lockshield valve is just a fixed cap and doest turn. well, you can remove it but thats it.


I need to balance the system as the radiator is hot at top and cold at bottom.

Help me pleassssee!!

 

[seco services]

can't you turn the valve with a adjustable spanner.

 

[bengasman]

You are putting the cart before the horse. changing the rad will do little good, you need to clean the system

 

[garagerob]

picture?
what do you see when you take the cap off?

 

[Eh_Dinna_Ken]

when you take the cap off there is black water. you can poke your finger into the hole and it feels like an alan key type shape about 10 - 15mm into the valve.

The radiator was well and truly rusted. however I take your point that I should have sorted out the valve etc before replacing it. However it was £30 and it nice and white now, instead of rusty and spotty.

Turning the cap either slackens it off (i.e like a loose nut, which will leak) and tightening does just that, it tightens to a stop.

Are these unusual lockshield valves, or is it something to do with my boiler? All other valves in the house are like it. I have googled for images as no way of getting photo to PC at moment - as you can see from the attached the fixed hex cap does not allow you to open/ close the valve, as far as I can make out!

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• Eh_Dinna_Ken
• 1 Dec 2008
• 1

 

[Eh_Dinna_Ken]

ITS OK!

I found out how to operate these Lockshield valves - they are called lockshield RLV valves.

Down in amongst the black water there was a 4mm allan-head which had was closing the valve.... just had to slacken it off.

The bathroom will not be so cold tomorrow morning now! Thanks for the advice/ help!