Flanges of copper pipes may be made of bronze. When
flanges are attached to copper pipes by brazing they
shall be secured in such additional way (e.g. by riveting
the ends or forming a conical end so as to fit into
the conical bore in the flange) that the resistance
to withdrawal from the flange does not depend wholly
on the brazing.
|The size and thickness
of flanges and the number and size of their bolts
should be as the given values.