Honeywell 22mm motorised valve to 20mm composite pipe

Discussion in 'Plumbing and Central Heating' started by chris911sc, 17 Jan 2021.

  1. chris911sc

    chris911sc

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  2. CBW

    CBW

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    He would have most likely used a 22mm x 20mm reducer
     
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  4. chris911sc

    chris911sc

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    Last edited: 17 Jan 2021
  5. muggles

    muggles

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    Wow, what a lash-up. A photo of the actual valve would help, but generally you'd use something like this https://www.wolseley.co.uk/product/uponor-compression-adaptor-brass-20-x-22mm/

    The difficulty with zone valves is that the cap nuts don't use standard pitch threads, so you might not be able to use the nut from the adaptor.
     
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