socket welded piping for low grade radioactive waste

[hwjtce]

For a civilian nuclear power project the carbon steel piping used to carry low grade radioactive waste to a waste management plant is of socket welded type as per PMS prepared by the client. However the same PMS indicates the requirement of slip on flanges over the socket welded piping. The reason provided by the client for this is it wants to avoid the number of hot spots accumulation inside the piping in the sockets. But this looks absurd as all the socket welded joints, fittings will anyway have sockets and its njumber is very large as compared to the number of flanged joints. need to know any technical reason behind this or is it a plain mistake which the client wants to hide?