1. Visiting from the US? Why not try DIYnot.US instead? Click here to continue to DIYnot.US.
    Dismiss Notice

Radiator Bleed Valve Sizing.

Discussion in 'Plumbing and Central Heating' started by Deeko99, 16 Jan 2017.

  1. Deeko99

    Deeko99

    Joined:
    15 Feb 2010
    Messages:
    6
    Thanks Received:
    0
    Location:
    Yorkshire
    Country:
    United Kingdom
    IMG_6346.PNG

    I have just removed 2 bleed valves from a vertical radiator which were leaking. The measurement across the thread was 1/2" so I ordered x2 1/2" replacements from a seller on ebay. They arrived today and measure 3/4" across the thread (as attached picture). The seller is adamant they are 1/2" valves and stated that 1/2" = 21.3mm. Am I missing something here?

    Thanks in advance.
     
  2. Sponsored Links
  3. spraggo

    spraggo

    Joined:
    6 Sep 2010
    Messages:
    947
    Thanks Received:
    151
    Location:
    Avon
    Country:
    United Kingdom

    !/2"=15mm.
     
  4. Nige F

    Nige F

    Joined:
    28 Jun 2005
    Messages:
    21,204
    Thanks Received:
    1,741
    Country:
    United Kingdom
    The seller was talking about BSP thread size - common to plumbing fittings. So "in the trade" what you have are 1/2 inch fittings ( and possibly in the diy sheds too ) Put some PTFE on the threads of your existing valves and try that;)
     
  5. DIYnot Local

    DIYnot Local

    Joined:
    3 Sep 2019
    Country:
    United Kingdom

    If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

    Select the supplier or trade you require, enter your location to begin your search.


    Are you a trade or supplier? You can create your listing free at DIYnot Local

     
Loading...

Share This Page