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How to remove a radiator that is has mainly horizontal pipe work?

Discussion in 'Plumbing and Central Heating' started by ABN, 26 Oct 2020.

  1. ABN

    ABN

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    Tying to remove a radiator that is connected via mainly horizontal pipe work. One end the valve is connection is via a soldered elbow with about 1cm of vertical pipe and the other end with a soldered elbow and about 3cm of vertical pipe.

    I have drained the radiator but can’t pull the valves far enough apart to free the connection into the radiator. Short of draining the whole central heating system and removing the valves from the pipework is there another way to remove this radiator?
    Code (Text):

    Valve-->              Radiator            <--Valve
    1                                         1-------------------pipe
    1  
    1--------------------------------------------------------------pipe
    Hope this gives you an idea of the pipework.
     
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  3. John the plumber

    John the plumber

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    Can you take a pic of it?
     
  4. John the plumber

    John the plumber

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    Pull a vacuum (plumbers language) or freeze pipe, or have something to catch the water and a 15mm speedfit stop, cut the pipe and whack a stop end on there quickly and rejoin at a later date with a coupler. and there are a few other ways.
     
    Last edited: 26 Oct 2020
  5. ABN

    ABN

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    Thanks for the reply. As a diyer can`t do the vacuum or freeze. Was hoping for a way without cutting existing pipe work and if poss without draining the system.
    Here is a photo as requested
    IMG_20201026_190949_1.jpg
     
  6. oldbuffer

    oldbuffer

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    You might try:
    1. Turn both radiator valves hard off. Count the number of 1/8 turns to full close on the right hand (lock shield) valve, and when finished re-open to the same point.
    2. Slacken the nut securing the left hand valve to the radiator, open the radiator bleed valve and drain the water into a pan or similar.
    3. When drained, fully unscrew the aforementioned nut. You should have enough slack in the pipework to pull the left hand valve off.
    4. Undo the right hand valve at the nut securing it to the radiator. Might be some residual water.
    5. Slide the radiator to the left on its brackets. Should give you enough room to remove it.
    6. Refitting is the reverse of the above. You might want to wrap some PTFE tape around the olives on the radiator tails, or use something like JetLube V2 paste.
    7. Re-open lock shield valve to previously noted setting to preserve system balance.
    8. Re-open TRV to desired setting.
     
  7. ABN

    ABN

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    Thanks thats the standard way to remove a radiator with vertical pipes as you can move/bend the pipes enough to free them from the rad which seems impossiblr with the horizontal pipework.
     
  8. Harry Bloomfield

    Harry Bloomfield

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    As above, turn the valves fully off, then you should be able to undo the unions nearest and at either end of the radiator. The pipes will then have enough give and spring to get the radiator completely out.
     
  9. Madrab

    Madrab

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    Cant you slide/lift the rad on the brackets to the left enough to release the right valve, there should be enough give on that long pipe, the left valve will be then be easy to disconnect movement.

    If not, Is you system sealed? If so then turn all the other rads off at both ends, count the turns on the lockshields so they can be returned to what they were, then you only need to depressurise the system, not drain it, you shouldn't loose a lot of water.
     
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  11. ABN

    ABN

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    Have lifted it off the brackets but there does not seem to be enough give in the pipes for the valve to clear the connector. Have even unscrewed the connect at the rad side in hope that had a shorter insertion into the rad than the valve into the connector. But sadly was not.
     
  12. Madrab

    Madrab

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  13. Lower

    Lower

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    Are you planning to replace or reuse the radiator. If you're planning to replace the rad, cut the rad tails off whilst the radiator is in situ.
     
  14. ABN

    ABN

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    Yes the system is sealed.
    Yes we will be replacing the rad but not for a whille so don`t want to have to drain the system twice.
     
  15. Madrab

    Madrab

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    OK so if you follow the instructions and shut of every rad then you only need to de-pressurise the system.

    You won't actually be draining the system down that way as most of the volume will be held in the rads and pipework and you won't lose much in the way of water volume.

    You can then disconnect the valves off from the supply pipework and cap the ends and job's a guddun.
     
  16. Lower

    Lower

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    Then isolate the radiator using the valves, loosen the joints to drain the rad and then cut the tails where the come out of the radiator. Then you can remove the rad and the remains of the tails leaving the system live until you're ready to replace the radiator.
     
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