steel pipe sizes

[swindon]

i have to replace some very old steel pipe
it is about 100yrs old
would it be the same size as new steel pipe as some i will need to reconnect
thanks in anticipation

 

[Chalked]

What size is it .
steel is measured in od. Outside diameter .

 

[IDCHAPPY]

I'm pretty sure they used cast or lead 100 years ago, I don't think the diameter of steel has changed significantly in the last 50 years?

 

[swindon]

it seems to be 3" but it could be a mm out or so
just wondered when the bs came in to standerdise pipe manufacture

 

[swindon]

i could be cast but the church warden says its over a 100yrs old used for underfloor trench heating

 

[turnpin]

Look on one of the fittings you should be able to see the size stamped on it...regards Turnpin:43:

 

[swindon]

the fittings are clamp style so no size given
very old
when was steel pipe (or cast) standardised?

 

[swindon]

I'm pretty sure they used cast or lead 100 years ago, I don't think the diameter of steel has changed significantly in the last 50 years?

sorry new to this site
do i quick reply or reply with quote?
anyway the joints are clamp style no size stamped
the pipe is about 100yrs old according to the church warden
used for tench heating

 

[IDCHAPPY]

Clamp style fittings? it must be cast man, especially in a church(I've worked in a few of similar age and all the main runs of pipe was 3/4" cast) with the guy reckoning about 100 y/o. Can you get a picture dude?

 

[chris watkins]

Sounds like it may be a job of these!! get an idea of the existing OD & what you are going to replace it with.
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