thread size
Having trouble fixing a leak so need to confirm a thread size.
a bottom entry float valve http://www.andyplumb.co.uk/product.a...19&prodID=7472 Is it 1/2 " bsp or metric? Thanks. Arthur |
thread size
"51" wrote in message ... Having trouble fixing a leak so need to confirm a thread size. a bottom entry float valve http://www.andyplumb.co.uk/product.a...19&prodID=7472 Is it 1/2 " bsp or metric? Thanks. Arthur Well whatever thread it is it's pressure rating is 'interesting' - to quote "withstands pressures from 1.5 to PSI " - maybe 'PSI' is some strange newfangled utterly horrendous pressure ! AWEM |
thread size
On Thu, 21 Sep 2006 22:30:44 +0100, "51"
wrote: a bottom entry float valve Sounds a bit kinky... :-) -- Frank Erskine |
thread size
"51" wrote in message ... Having trouble fixing a leak so need to confirm a thread size. a bottom entry float valve http://www.andyplumb.co.uk/product.a...19&prodID=7472 Is it 1/2 " bsp or metric? BSP is an ISO standard thread, which makes it officially a metric thread. Most domestic tank and cistern fittings use 3/4" BSP, which is just over 1" OD. If the one on that valve is 1/2", the thread OD would be about 3/4". Colin Bignell |
thread size
"nightjar .uk.com" nightjar@insert my surname here wrote in message ... "51" wrote in message ... Having trouble fixing a leak so need to confirm a thread size. a bottom entry float valve http://www.andyplumb.co.uk/product.a...19&prodID=7472 Is it 1/2 " bsp or metric? BSP is an ISO standard thread, which makes it officially a metric thread. Most domestic tank and cistern fittings use 3/4" BSP, which is just over 1" OD. If the one on that valve is 1/2", the thread OD would be about 3/4". Colin Bignell Thanks, Colin. |
thread size
On Fri, 22 Sep 2006 02:14:12 +0100, "nightjar" nightjar@insert my
surname here.uk.com wrote: "51" wrote in message Is it 1/2 " bsp or metric? BSP is an ISO standard thread, which makes it officially a metric thread. Are you *really* sure of that? -- |
thread size
The message
from Matt contains these words: Is it 1/2 " bsp or metric? BSP is an ISO standard thread, which makes it officially a metric thread. Are you *really* sure of that? My now rather old reference states: "British Standard pipe threads are recognised by ISO and are maintained in the inch system with fractional designations for pipe joints." The dimensions in the tables are metric apart from TPI. -- Roger Chapman |
thread size
"Matt" wrote in message ... On Fri, 22 Sep 2006 02:14:12 +0100, "nightjar" nightjar@insert my surname here.uk.com wrote: "51" wrote in message Is it 1/2 " bsp or metric? BSP is an ISO standard thread, which makes it officially a metric thread. Are you *really* sure of that? Under EU legislation, all threads we use must be metric, even if they have to produce metric versions of threads that started out as imperial to achieve that. The relevant standards are ISO 228 and BS EN 10226 Colin Bignell |
thread size
On Fri, 22 Sep 2006 17:09:59 +0100, Roger
wrote: The message from Matt contains these words: Is it 1/2 " bsp or metric? BSP is an ISO standard thread, which makes it officially a metric thread. Are you *really* sure of that? My now rather old reference states: "British Standard pipe threads are recognised by ISO and are maintained in the inch system with fractional designations for pipe joints." The dimensions in the tables are metric apart from TPI. Currently being nowhere near my usually easily accessible Zeus tables/Kempes/Machinery's Handbook i'll take your word for it! Bloody strange state of affairs when it has to be dimensioned in metric though. Probably to suit the Germans/French who couldn't devise a sensible thread if their life depended on it. PG threads used (or not) for conduit/industrial switchgear are one of the most obscure. They have a Metric OD (but ridiculously referenced so that PG 13.5 is actually just over 20mm, not exactly 20mm mind as that would be far too sensible - (20.4mm to be exact), 18tpi pitch which equals 1.41mm yes 1.41mm, not 1.5mm as that might remotely make some sense and an 80 degree thread angle so they can't be cut using common off the shelf tooling. Why on earth would any sane person bother with PG crap when 20mm or larger conduit holes can be punched for 1/10 Euro cent and use standard conduit fittings that have been around for three decades? -- |
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