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What do you call these / where can I buy them?

Discussion in 'Plumbing and Central Heating' started by goosander, 11 May 2017.

  1. goosander

    goosander

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    IMG_0028.JPG I'm in the process of replacing an ancient leaking Sunvic Duoval 3 port valve. Rather than replace with the same thing I decided to replace with a standard spring return Honeywell valve and get rid of the large duoval relay box. Since the old valve had what appeared to be 3/4" connections, I bought the replacement Honeywell valve with 3/4" connections in the hope of not having to alter any pipe.

    Turns out the 3/4" fittings on the Honeywell valve are different to the old Sunvic one, so I can't reuse the old 'nuts' (see pic) and the new valve didn't come with any...

    What do you call these 'nuts', and where can I buy some that will fit a honeywell valve with 3/4" connections?

    Out of interest, any idea what fitting the old valve is - it appears similar to the 3/4" on the Honeywell valve but is slightly different size or thread so won't mate.

    Help much appreciated as I'm rather stuck now...
     
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  3. 45yearsagasman

    45yearsagasman

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    Change the valve you bought for a standard 22mm valve. Cut and remove the old olives and discard the nuts. Use the new valve as supplied.
     
  4. ServiceNumpty

    ServiceNumpty

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  5. goosander

    goosander

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    Thanks, I did see those in screwfix but was trying to locate the equivilent of the 'nuts' in the photo. What you suggest will be plan B...
     
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  7. ianmcd

    ianmcd

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    The wiring will not be the same , this is not a straight swap
     
  8. ianmcd

    ianmcd

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    your sunvic valve will have had a relay box fitted , you can not just swap it out
     
  9. That will be tomorrow's post
     
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  10. goosander

    goosander

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    I know the electrics are different and I'm OK with that side of things, just the plumbing causing problems - thanks.
     
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