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Technical


Technical requirements, specifications and literature for various piping components and equipment.

U Section Butterfly Valve | EN 593 & BS 5155

G.A. Drawing & Design Features As specified by EN 594 and BS 5155, the U-section butterfly valve is a wafer-style valve with two flanged ends. Unlike the conventional double-flanged butterfly valve, although two integral flanges are integrally cast on the body, the internal space between the two integral flanges are too small for them to be bolted up with pipe …

Cast Iron Wafer Butterfly Valves | Without Pin, Single Shaft

Technical Drawing & Design Features Wafer type butterfly valves, either made of cast grey iron or ductile iron, can be further classified according to the way its disc is attached to the shaft. If the disc is attached to the shaft by using a through taper pin, it is called pinned disc or disc with pin; If the disc is …

ASME B16.11 Bushing

Technical Drawing & Function The ASME B16.11 bushing has male threads on the surface of outside diameter (O.D.) and female threads on the surface of inside diameter (I.D.). When used in piping connection, its O.D. screws into the larger-diameter pipe with female threads and its I.D. screws into the smaller-diameter pipe with male threads, thus, makes a reduction in line …

ASME B16.11 Plug

Technical Drawing The ASME B16.11 plug, like a cap, is designed to close off the end of a run of pipe. It is manufactured for screwed fittings with male threads and are screwed into the end of a pipe to create a seal. As illustrated in the drawing above, plugs can be further classified according to the head style: square …

ASME B16.11 Street Elbow | Threaded

Drawing & Function The ASME B16.11 street elbow is a 90° elbow with one end externally threaded (male NPT) and the other end internally threaded (female NPT). The male NPT end is to connect with a female-NPT screwed pipe while the female NPT end is to connect with a male-NPT screwed pipe. It changes the flow direction by an angle …

ASME B16.11 Couplet | SW & Threaded

Technical Drawing & Function The ASME B16.11 couplet is primarily used to connect two pipes. It resembles a welding boss except that a straight length (Q) of weld ring is furnished. One end of the couplet is furnished with socket welding (SW) or threaded connection; the other end is furnished with a bevelled transition to a straight length of welding …

ASME B16.11 Cap | SW & Threaded

Technical Drawing & Function The ASME B16.11 cap, either socket welding or threaded, is used to seal an open end of pipe. SW caps are available in pressure ratings Class 3000, 6000, 9000; threaded caps are available in pressure ratings Class 3000 and 6000. *Click to view dimensions and masses of other ASME B16.11 fittings. Dimensions & Masses of ASME …

ASME B16.11 Boss | SW & Threaded

Technical Drawing & Function The ASME B16.11 welding boss, either with socket welding end (Class 3000, 6000, 9000) or threaded end (Class 3000, 6000), is used as a branch connection on pipe header or a nozzle connection on equipment. It resembles the function of a weld outlet. A branch pipe is joined by socket welding or threaded connection of the …

ASME B16.11 Half Coupling | SW & Threaded

Technical Drawing & Function The ASME B16.11 half coupling is a forged fitting primarily used for connecting small-bore screwed (THD) or socket-weld (SW) pipe to the large-bore main run pipe (header). SW half couplings are available in Class 3000, 6000 and 9000. It usually has larger overall length than SW full coupling counterpart. Threaded half couplings are available in Class …

ASME B16.11 Coupling | SW & Threaded

Technical Drawing & Pressure Ratings ASME B16.11 forged coupling, also known as full coupling, is a length of small-bore sleeve with reinforced wall thickness to connect two pipes. The coupling may be furnished with two internally threaded (THD) ends, two socket welding (SW) ends, or a combination of SW and threaded ends. ASME B16.11 SW couplings are available in pressure …

ASME B16.11 SW & THD Cross

Technical Drawing The ASME B16.11 forged cross has four outlets that can be connected with the pipe end. The two center lines of each pair of outlets are perpendicular to each other. The end connection may be furnished as socket welding (SW) type or threaded (THD) type. The crosses are available in straight style and reducing style. SW crosses are …

ASME B16.11 SW & THD Tee

Technical Drawing Similar to the butt welding tee, ASME B16.11 forged tee is a three-way fitting used to make perpendicular connections to the pipe. The three outlets of the forged tee may be furnished with either socket welding (SW) end or threaded (THD) end. The forged tees can be further classified as straight type (all three outlets are the same …

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