Threaded elbow

A threaded elbow is a forged fitting that changes piping direction through threaded end connections. The generic title does not establish elbow angle, equal or reducing sizes, male or female arrangement, or thread form; each must be specified for the order. It differs from a socket-weld elbow by its connection principle: assembly relies on thread engagement and sealing rather than inserting pipe into a socket and making a fillet weld. Selection should consider routing angle, thread type and orientation at each end, size, material, sealing method, assembly loads, and maintenance access.

Application and duty

Changing direction with a forged threaded fitting after angle, end arrangement, and thread form are defined by the project specification.

TECHNICAL REFERENCE

Selection summary

Socket-weld and threaded fittings for small-bore, high-pressure piping

Fitting class, size, end type, forging grade and socket depth or thread form must match the project piping class.

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