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Removing lockshield extension tail

Discussion in 'Plumbing and Central Heating' started by phloaw, 30 Apr 2021.

  1. phloaw

    phloaw

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    Hi, I have a standard radiator (1/2" female bsp) on which I'm installing a new lockshield/TRV kit. The lockshield is similar to this:
    [​IMG]

    What happens if I remove the nut and everything on its left in the pic, and screw the valve directly into the radiator (with PTFE)?
    This would simplify my space arrangements a lot, but before actually trying I thought to ask if this makes sense at all.
    TA!
     
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  3. oldbutnotdead

    oldbutnotdead

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    Check the threads actually are the same, if they are then lots of ptfe (at least 5 turns) and maybe a smear of Boss white or similar and try it.
     
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  4. ianmcd

    ianmcd

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    and if you ever need to remove the radiator ? what are you going to do ?they have tails for a reason , the shank can be adjusted but you need to use a tail
     
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  5. phloaw

    phloaw

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    Ah, that's not a problem, there would be some slack at some other point on the circuit. However, I'm more worried about the possibility of not having enough room to properly tighten the ptfe joint, so I guess I'll try to keep the tail. Thanks for all the answers!
     
  6. oldbutnotdead

    oldbutnotdead

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    If space is really tight you could try the older type of valve fitting (tapered thread tail with a flange that the valve mates to)- you might save 5mm or so. Or get a narrower radiator
     
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  8. phloaw

    phloaw

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    Thank you. Not sure which type you mean. Would you have a link or pic, please?
     
  9. oldbutnotdead

    oldbutnotdead

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  10. phloaw

    phloaw

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  11. phloaw

    phloaw

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