Pressure/temperature ratings
The effectiveness of the joint is very dependent on size, local service conditions, support conditions and jointing compounds and techniques.
The table below offers recommendations only.

Reducing sockets

Hose tail

Hexagon nipples

Female socket unions and male/female socket unions

Equal and half sockets

Crosses

90 degree male female elbow

90 degree female elbow and equal tees

45 degree female elbow

