The valve has suddenly started leaking from underneath the cap. Anyone know how to remove the cap or if it is possible to repair the valve?
Dont want to drain down system etc at this point . Will be doing that in a few weeks when fitting a new radiator elsewhere in the house.
By the way I have tried some force to remove the cap and it hasn't budged. Don't want to apply more force unless I know for definite that it should come off.
Does the cap separate? It looks like the section at the very left of your picture might be a lid which would conceal a retaining screw perhaps.
I have tried to force a screwdriver into that recess, but no movement. It is hard to tell if it is a decorative recess or not. I was hoping there might be someone who has experience of these valves and knows for certain what comes off and what doesn't. My trial and error approach may cause more damage.
I've fitted a few similar looking ones and the very left bit should unscrew then the main cap bit pulls / falls off. The left bit unscrews separately from the main bit.
half way down the shaft you will see a gland nut, either gently tighten it in a clockwise direction until the leak stops or turn the valve off and then undue the nut put some rolled up ptfe tape into the threaded area and retighten the nut up again
Thanks, I had tried prising as I hadn't considered it would be threaded. I have now effected a temporary repair that should do the job . This valve has two 0-rings on the shaft and I have wrapped ptfe around them. Thanks everyone for the helpful suggestions.
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