Working out the weight of lead main

[mutley racers]

Hi, can someone tell me how we worked out the weight of lead per foot by using a piece of string and wrapping it around it? I cannot see it on the search bar any where.

Cheers

 

[spanner]

Cant remember exactly
As far as..taking a piece of string wrapping around the lead pipe exactly twice
Measure the length of string in cm multiply and devide by something it gives you the LB of lead in weight..

 

[Jones82]

If its to find out what size lead lock you need, just use a universal transition fitting instead, philmac make them, also another brand I forget but they will fit any size in a range, for example 15-21mm

Universal Transition Couplings | Philmac

However most pipes are either 7 or 9lb lead... rarely some are 5lb and some are 8lb....

 

[Gasmk1]

Shouldn't the weight be embossed on the seam ?

 

[snowhead]

Wrap the string around the lead, once.
Measure it in mm.
Divide it by 3.14 (Pi in maths)
The result is O.D. (outside diameter )

Use the table at the bottom of this page;

http://plassonuk.m6.signature-it.com/gallery/upload/Fitting Instructions/Pipe Size Chart.pdf

I'd just use calipers and measure the O.D directly or cut a slot in a piece of cardboard to the OD

 

[mutley racers]

Thanks all for your help. Going on the above I have 7lb lead.

 

[Last Plumber]

weight of lead per foot

I know you've sorted this but just for future ref, it's per yard for pipe.

 

[mutley racers]

So I measured with me calipers and it was like 22.68mm OD. So went with 7lb and worked a treat. Philmacs were 45 squids for 2 compared to 16

 

[ShaunCorbs]

Wtf why did you pay that much ?

 

[mutley racers]

I did not. 2 lead locks for 16