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42mm Tank connector ?

Discussion in 'Plumbing and Central Heating' started by Ian3266, 17 Mar 2012.

  1. Ian3266

    Ian3266

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    Location:
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    Hi all

    I have a relatively simple query to which I cannot find any related info on the net, curious :confused:

    I have a small stainless boiler with a circular hole in it (on a flat section) of 47.65 mm (I cannot alter this). I need to attach a short length (about 1 mtr) of copper pipe to this to form a watertight connection, there is little pressure involved, maybe a little but not significant. It also needs to be relatively easily removable.

    42mm pipe would be ideal and a tank connector immediately springs to mind but I cannot find out the hole size required for such a beasty without buying one, does anyone know the answer ??

    thanks in advance :D
     
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  3. TicklyT

    TicklyT

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    47.65mm is a tad tight for 1½" BSP, but only just (1½" BSP has a major diameter of 47.803).

    1¼" BSP has a major diameter of 41.91 mm.

    the two sizes are commonly used for sink and basin wastes.
     
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