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Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
These two books are the perfect starting place to help you get to grips with one of the most vitally important aspects of our society - our homes and living environment.

PLEASE NOTE: A download link for Volume 1 will be sent to you by email and Volume 2 will be sent to you by post as a book.

Buy individually or both books together. Delivery is free!


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  1.  
    I've got two Danfoss HPV22 Vale bodies like follows:
    http://www.google.co.uk/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0CAcQjRw&url=http%3A%2F%2Fwww.bhl.co.uk%2Fdanfoss-randall-hpv22-2-port-valve-body-22-mm.html&ei=IKOZVdmnL6TN7Qa67IGICA&bvm=bv.96952980,d.ZGU&psig=AFQjCNGWMBa6k3i-8EN3uVftSJ7NAu-Fzw&ust=1436218523076950

    I assume they have 22mm external compression fittings, for some reason I cannot get any 22mm compression nut I have to fit? When an olive is inserted on the pipe it just won't allow enough depth to bite onto the thread?

    Any suggestions? Are there smaller olives (depth wise) or longer nuts perhaps?

    I would have thought any 22 nut would fit?
    • CommentAuthorTriassic
    • CommentTimeJul 5th 2015 edited
     
    Have you made sure the nut fits the thread before inserting the pipe and olive?
  2.  
    I have tried all 4 threads on the 2 valves and I just can't get a bite on them when an olive is fitted?

    I have been using Screwfix nuts:
    http://www.screwfix.com/p/compression-nut-22mm-pack-of-10/64413

    and olives:
    http://www.screwfix.com/p/compression-olives-22mm-pack-of-20/51520

    They are on 'clearance' so maybe they're reject nuts or something? But every nut is the same
    • CommentAuthorTriassic
    • CommentTimeJul 5th 2015
     
    Some nuts will not "mix and match" between fittings as the thread pitch is different. Make sure you use the original nuts and olives that came with the valve.
  3.  
    I do not have the original nuts and olives unfortunately.

    Two of the four are fine as the original nuts are on the one side.

    But as the other two were blanked off, I need to now finally connect up the pipes.
    •  
      CommentAuthorfostertom
    • CommentTimeJul 5th 2015
     
    Yes, there are fine and coarse threads around.
  4.  
    I guess a local plumbers merchant should carry these off the shelf?
    • CommentAuthorwoodgnome
    • CommentTimeJul 6th 2015
     
    Just take the valve bodies into the plumbers merchants.....
  5.  
    Danfoss kindly sending out replacement nuts and olives free of charge, excellent service.
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