What is LJ?

2019-06-15View Original

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The butt-welded ring flanges used in steel-reinforced polyethylene plastic composite pipes have a connection grade (sealing surface) of LJ – what does this mean?

Reply #22019-06-15

LJ probably refers to a slip flange, rather than the type of sealing surface.

Reply #32019-06-15

Loose flanges – it doesn’t seem to be called LJ in the new standards

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What is LJ?

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