I am looking to buy compression fittings that will attach to a lead pipe but am a bit foxed by the sizes. For lead, pipe size is given by the weight of one foot length of the pipe. However, because the pipe is connected I cannot just hack a bit off and weigh it! Does anyone know the approximate external diameter of 5lb, 6lb, 7lb and 9lb lead?
I realise this query goes a bit further back than imperial/metric but here's hoping.
Obviouly you need a leadloc but you know that. There is an ancient formula as follows:
Measure the interior diameter of the pipe. Add to it the thickness of the lead. Multiply the result by 0.483 for 1/32" thickness, 0.967 for 1/16", 1.45 for 3/32" and 1.933 for 1/8". That will give you your weight per foot.
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