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3 inch BSPP Threaded Half Coupling

BSP Pipe Fittings Specification:
Type: Elbow /Tee /Cross /Coupling /Cap/Union /Nipple /Plug /Bushing
Standard: ASME B16.11, BS3799
Size: 1/8IN-4IN/DN6-DN10
Rating: 2000lbs,3000lbs,6000lbs
British Standard Pipe Parallel (BSPP)

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BSPP is type of threaded for forged steel pipe fittings. 3 inch threaded half coupling is common packaged by seaworthy carton.

British Pipe Standard fittings are among the most popular of all foreign threads. These threads come in 2 versions: parallel (BSPP), and tapered (BSPT). The thread flank angle for both tapered and parallel British threads is 55°.

BSP Pipe Fittings Specification:

Type Elbow /Tee /Cross /Coupling /Cap/Union /Nipple /Plug /Bushing
Standard ASME B16.11, BS3799
Size 1/8IN-4IN/DN6-DN10
Rating 2000lbs,3000lbs,6000lbs
British Standard Pipe Parallel (BSPP)

A British Standard Pipe Parallel is the straight equivalent of a BSPT thread. BSPP connections require a bonded seal ring, which is sandwiched in between the shoulder of the male fitting and the face (opening) of the female fitting.

We are the Manufacturer of pipe fittings from China, the main products contain Butt Welded Fittings, Socket Welding Fittings and Threaded steel Fittings.

Threaded fittings are available in pressure ratings Class 2000, 3000, and 6000;

3000lb steel pipe fittings is common used in connection of piping.

Threaded Steel Coupling is a short piece with screw in NPT or BSP ends or one end, which is available in stainless steel, alloy steel and carbon steel. The size range is DN6-DN100. There are various grade of A694 Threaded Coupling, Such as A694 F42 / 46 / 52 / 56 / 65 / 70

Forged threaded pipe fittings are named by its manufacturing forging process and produced according to ASME B16.11, MSS-SP-79\83\95\97 and BS3799 standards. It is a connector in between nominal bore pipes. Their material can be made of carbon steel A105 and stainless steel SS316 & 304. Threaded fittings are mainly used for small pipe diameters, generally for piping whose nominal diameter is NPS 2 or smaller. Threaded joints probably represent the oldest method of joining piping systems.


Threaded Pipe Fittings Specification
Shape Elbow,Tee, Cross, Coupling, Cap, Swage Nipple, Bushing, Plug, Nipple, Union, Hex Nipple,Threadolet.
Size Range 1/8″ –  4″ / DN6 – DN100
Pressure Rating Class 2000lbs, 3000lbs, 6000lbs
Thread Type NPT, PT, BSPP, BSPT, PF
Standard ASME B16.11, BS3799, EN 10241, MSS SP-83, MSS SP-97
Carbon Steel ASTM A105 / A105N, ASTM A350 LF2/LF3, ASTM A694 F42 / 46 / 56 / 60 / 65, P235GH, P265GH, P280GH, P355GH
Alloy Steel ASTM A182 F11 / 12 / 5 / 9 / 91 / 92 / 22
Stainless Steel ASTM A182 F304/304L/304H, 316/316L, 321, 310S, 317, 347, 904L,1.4404, 1.4437.
Duplex Stainless Steel ASTM A182 F51, F53, F44


Threaded Coupling Drawing and Dimension




Application of Threaded Pipe Fittings

Oil and Gas
Water Pipeline
Noncritical Applications
Power station
Fire Protection


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