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2 quick questions

Discussion in 'Plumbing and Central Heating' started by teddyb, 13 Feb 2012.

  1. teddyb

    teddyb

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    Hi
    1. Is it necessary to have boiler off when freeing the pin in a TRV?
    2. Would a squirt of WD40 help to keep the pin free?

    They may be daft questions, but important for me :eek:
     
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  3. 45yearsagasman

    45yearsagasman

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    1-No
    2-Yes
     
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  4. D_Hailsham

    D_Hailsham

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    A silicon-based lubricant is better as the chemicals in WD40 can cause the seals within a TRV to disintegrate.
     
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  5. teddyb

    teddyb

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    Thanks. Being new to this bit of DIY, I felt it best to check. :D
     
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  7. teddyb

    teddyb

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    Having taken the head off, I find it is broken. Part of the plastic which grips the brass nut on the valve has crumbled and the black 'sick' doesn't move when the dial is turned. The good news is that, without the head on, the radiator is now hot :D . Does anyone know if it is possible to buy just a replacement head part, or do I have to get in a plumber to replace the whole valve and drain down the system?

    As always, thanks for all advice and help. :):)
     
  8. teddyb

    teddyb

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    Of course, I meant STICK not sick. :oops:
     
  9. 45yearsagasman

    45yearsagasman

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    Most of the leading brands(Peglers, Drayton, Honeywell among others) will supply heads only.
     
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  10. tryitandsee

    tryitandsee

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