1922 boiler pipe thickness

[MasterDumber]

Back in 1920-1922 did they generally use STD black iron pipe on boilers, or did they use XS or XXS?

 

[johnjh2o]

STD black iron with cast iron fittings.

 

[MasterDumber]

anybody able to post a link to the relevant mechanical code?

 

[frodo]

low pressure steam is sch 40 blk pipe and medium, pressure/high is sch 80 here wherr i live

i have no idea about your area/??????????????

unified mechanical code ...my book is old 2000

chapter 12 1201.1 scope

https://law.resource.org/pub/us/code/ibr/iapmo.umc.2009.pdf