yorkshire_spam Posted November 5, 2012 Share Posted November 5, 2012 Any idea what size/thread the drain plug hole is on the bottom tank of a wide radiator.My existing narrow rad doesn't seem to have one - so I need to source one for when I fit the wider rad?I'm guessing BSP - but not sure what size? I thought I'd do the lazy thing and ask rather than measuring it ;-) Quote Link to comment Share on other sites More sharing options...
Velocita Rosso Posted November 5, 2012 Share Posted November 5, 2012 There`s not many with drain plugs these daysI bought a new one and there is n`t one on mine Quote Link to comment Share on other sites More sharing options...
yorkshire_spam Posted November 5, 2012 Author Share Posted November 5, 2012 Gave it a rough measure (couldn't find calipers to get an accurate i/d) at "just" over 18mm, 19.05mm is ½ BSP so I guess that's it (unless it's british standard cycle size or something just to be awkward) Quote Link to comment Share on other sites More sharing options...
nang Posted November 6, 2012 Share Posted November 6, 2012 1/2" BSP sounds hellava big. Is it tapered or parallel ?Tony. Quote Link to comment Share on other sites More sharing options...
yorkshire_spam Posted November 6, 2012 Author Share Posted November 6, 2012 nang wrote:1/2" BSP sounds hellava big. Is it tapered or parallel ?Tony.Good question! I'll have to clean the over spray out of the hole and have a proper look! Quote Link to comment Share on other sites More sharing options...
junkuser Posted November 6, 2012 Share Posted November 6, 2012 Remember BSP is nominated by pipe size and that is the approx ID of the pipe, not the OD. Quote Link to comment Share on other sites More sharing options...
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