Radiator extension valve does not fit

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we are changing our rads from imperial to matric and I wanted to extend the locksheild side.

I got some adapters and they don't fit I think. What should I get. See picture attached
 

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That's not a lockshield extension. You need something like this:


normal_IMG_0096.PNG
 
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No. Throw those away! Just unscrew and remove what you already have coming out of your radiator, fit the size of extension you require (they can be cut down), fit a new olive and a new (or your original chrome cap) and then fit your valve. Here's one of mine.

image.jpg
 
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The extensions screw into the radiator (with ptfe tape around them) and then the valves fit onto the smooth end with a nut and an olive.

Edit: I mean the suggested extensions. Not the ones you have - to make them work you have to replace the ferrule that's in the rad with the extension and then put the old ferrule in the end of the extension.
 
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I suppose you could use what you have but I don't think they'll look as neat because you'll have two joins before the valve. I don't think you'll get a 15mm olive over what you have.

Here's a clip showing how to fit the ones I showed you above although that's a telescopic one and not a fixed length one but the fitting principal is the same.

 
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I am not suggesting it, why not fit what you got ?
Could do. Just personal opinion of mine, I think it'll look fugly though.

http://www.screwfix.com/p/tesla-rig...gclsrc=aw.ds&dclid=CIrg2cvdsNYCFUSHUQodBJAMeg

Is this the item you are all suggesting?

It didn't have good reviews so didn't consider it firsf

That's what I have on mine in the picture above. What was bad about it in the reviews?

I suppose it's your choice in the end though but what you have is just one half of the extension and you will have to fit whatever rusty piece of ****e you remove from your radiator to that.
 
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