104 Field Instrumentation GEN Rev)
Flared fitting: It is formed by making a clean, square cut at the end of the tubing and then flaring the end. A threaded connector forces the flared end of the tubing onto a mating part.
Compression fitting: Made by slipping a ring (a sleeve or ferrule) over the end of the tubing. Tightening the threaded connector compresses
the ring around the tubing, forcing it against a mating part.
Pipe fitting: A normal pipe thread is tapered i.e. the depth of male thread becomes shallower as moved away from pipe.
By tightening this fitting, shallow threads form a tight seal with the female threads. This kind of fitting is used for high pressures.
Socket fitting: it is made by soldering or welding each pipe end into a standard connector. Used for high pressures.
105 Field Instrumentation GEN Rev)
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