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Types of Threaded fittings

DataTime:[2016-5-15]

Types of Threaded fittings

Threaded fittings are mainly used for small pipe diameters (Small Bore Piping); generally for piping whose nominal diameter is NPS 2 or smaller.

1. Threaded cap( end cap)

Threaded cap Seals the threaded end of pipe

2. Threaded half-coupling
The threaded half coupling can be directly welded to the run pipe, to make a branch connection

3. Threaded full-coupling
Threaded full Coupling, joins pipe two pipe or to a nipple et cetera.

4. Threaded square head plug 
Threaded square head plug seals the threaded end of fittings

Threaded Square Head Plug

5.  Threaded round head plug 
Threaded round head plug seals the threaded end of fittings

6. Threaded hex head plug 
Threaded hex head plug seals the threaded end of fittings

7. Threaded hex head bushing 
Threaded hex head bushing can be used to reduce a threaded fitting

45° Threaded Elbows make 45° changes of direction in the run of pipe.

9. 90º Threaded Elbow
90º Threaded Elbow make 90° changes of direction in the run of pipe.

10. 90º Threaded tee
90º Threaded tee makes 90º branch from the main run of pipe.

11. 90º Threaded cross
 90º Threaded cross makes 90º branch from the main run of pipe.

12.  Threaded union(MSS SP-83)

Threaded Union are primarily used for maintenance and installation purposes.


It is a screwed joint design and it consists of three interconnected pieces: two internally threads and a centerpiece that draws the ends together when rotated.

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Yaang Pipe Industry Co., Ltd. is an international supplier of piping solutions for flange, butt welding fittings, socket welding fittings and threaded fittings. Our products are widely used in different industrial fields, including oil and gas, chemical industry, petrochemical industry, power plant, pulp and paper industry, environmental and water conservancy engineering, engineering projects, etc.