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WD40 terror and zone valve

Discussion in 'Plumbing and Central Heating' started by WakaDIY, 1 Apr 2020.

  1. WakaDIY

    WakaDIY

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    Hi all,

    Drayton ZA5 valve seized the other day during this Corona lock down. Took off the actuator head and sprayed the tap itself with silicon lubricant, but no luck, still too hard to move with pliers. Only thing that freed it was WD40.

    I am now terrified the WD40 is gonna eat the seals. It's in the loft, it's Corona time, I'm vulnerable and a leak would be disaster.

    Any ideas or thoughts I haven't considered will be greatly appreciated :)

    Many thanks
     
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  3. denso13

    denso13

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    Don't worry about it. From the website;

    "Surface Compatibility: For all variations : WD-40 Multi-Use Product demonstrates none to negligible deleterious effect to plastic, rubber and metal hard surfaces. This includes Acetal, neoprene/hard rubber, HDPE, PPS Copolymer Polysulfone, Teflon, Viton, steel, galvanized steel hot dip, electroplated, copper, brass, magnesium, nickel, tin plate, titanium and zinc"
     
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  4. footprints

    footprints

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    Used it loads of times on valves, to be fair it is only a short term fix it will seize again but no problem it is not oil based so will not attack the seal.
     
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  5. WakaDIY

    WakaDIY

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    Thanks guys. Appreciated.

    But I keep seeing warnings not to use WD40 on valves. It's the negligible risk that's worrying me...

    How long did it last you?
     
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  6. footprints

    footprints

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    Quite often got customers running again till the valve could be changed, a week or two normally, but I suspect many left it till it stuck again.
    Like most plumbers mine got sprayed with WD40 several times till it finally gave up. The usual cause is a small leak around the spindle due to wear, corrosion then jambs the diverter operation. In time the leak gets slowly worse as it wears till it sticks for good or starts dripping perhaps damaging the electrical components in the valve. I have never had one flood, no need to panic.
     
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  7. WakaDIY

    WakaDIY

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    Phew. Thanks :) Really didn't need that kind of problem too
     
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  9. Keithmac

    Keithmac

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    I've seen first hand what it does to rubber seals and boots (swells them up) so I can't see how they can publish that information?.
     
  10. WakaDIY

    WakaDIY

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  11. WakaDIY

    WakaDIY

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    Can I blast out the WD with another spray?
     
  12. Keithmac

    Keithmac

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    I'd leave it be now to be fair, GT85 is far better/ kinder imho for next time.
     
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  13. footprints

    footprints

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    Don't Panic! Keep calm and carry on!
     
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  14. WakaDIY

    WakaDIY

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    Thank you all
     
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