Joint of Category C for lethal-service vessel
Joint of Category C for lethal-service vessel
(OP)
When vessels are to contain lethal substances, UW-2 (1)(b) says that all joints of Categories C shall be:
Type Nº1 (Butt joints as attained by double-welding....) or
Type Nº2 (Single-welded butt joint with backing strip other than those included under 1 ) of Table UW-12.
Does this imply that I cannot weld a socket weld Flange to a 3/4"-nozzle when the vessel contains a lethal substance?
Thanks for your help.
Type Nº1 (Butt joints as attained by double-welding....) or
Type Nº2 (Single-welded butt joint with backing strip other than those included under 1 ) of Table UW-12.
Does this imply that I cannot weld a socket weld Flange to a 3/4"-nozzle when the vessel contains a lethal substance?
Thanks for your help.





RE: Joint of Category C for lethal-service vessel
prex
http://www.xcalcs.com
Online tools for structural design
RE: Joint of Category C for lethal-service vessel
1. Perhaps a TIG butt-joint that is 100% RT'ed.
Or,
2. Utilize a 2" nozzle with 2" flange reduced downstream
to 3/4".
Cheers
Pains of 3/4" :)
RE: Joint of Category C for lethal-service vessel
RE: Joint of Category C for lethal-service vessel