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What is threaded full coupling?

DataTime:[2016-7-13]

What is threaded full coupling?

A threaded full coupling which means a steel pipe coupling has two ends both threaded. It could be a coupling with the thread only on the two ends, also could be a coupling with thread all over the length, they are all called full pipe coupling.


Sometimes the two ends thread may be different, one end is BSP and another end is NPT, then it is like a adaptor for pipes which have different type of thread ends. When installing it, the workers should check the direction for correct match .

Standard: ASME / ANSI B16.11

Class: 3000 LBS, 6000 LBS, 9000 LBS

Material: Available in a complete range of Carbon Steels, Stainless Steels, Alloy Steels and Non-ferrous metals certified to ASTM, ASME Standard.

Sizes: 1/8”- 12” in Class 3000 and 1/8”- 8”in Class 6000

Also available in 1/8 – 8” in 150 # and 1/8”- 4” in Class 9000 and in special lengths

Threads: American National Standard Taper Pipe Threads

NPT (ANSI/ASME B1.20.1-1983)

Also available in other thread forms: NPTF, NPSC, BSPT, BSPP and in any combination.

Left hand threads available upon request.

FORGED FITTINGS THREADED FULL COUPLING MATERIAL & GRADES :

Stainless Steel Threaded Full Coupling : ASTM A182 F304, F304L, F306, F316L, F304H, F309S, F309H, F310S, F310H, F316TI, F316H, F316LN, F317, F317L, F321, F321H, F11, F22, F91, F347, F347H, F904L, ASTM A312/A403 TP304, TP304L, TP316, TP316L

Carbon Steel Threaded Full Coupling : ASTM A105, A350 LF2, A106 Gr.B, A234 WPB

Alloy Steel Threaded Full Coupling : ASTM / ASME A182, ASTM / ASME A335 GR P 1, P 5, P 9, P 11, P 12, P 22, P 23, P 91, ASTM / ASME A691 GR 1 CR, 1 1/4 CR, 2 1/4 CR, 5 CR, 9CR, 91

Duplex Steel Threaded Full Coupling : ASTM/ASME A182 / SA182, A790 / SA790 UNS No S31803, S32205

Super Duplex Threaded Full Coupling : ASTM/ASME A182 / SA182, A790 / SA790 UNS No S32750, S32950

Nickel Alloy Threaded Full Coupling : ASTM B336, ASME SB336, Nickel 200 (UNS No. No2200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020), Titanium (Grade I & II), Copper Nickel (Cupro-Nickel 90/10 & 70/30).

Low Temperature Carbon Steel Threaded Full Coupling : ASTM/ASME A420 SA/420 WPL3, WPL6

DIMENSIONS OF ASME B16.11 THREADED FULL COUPLING

threaded full coupling


Dimensions threaded Full couplings – NPS 1/2 to 4 – 3000 LBS – ASME B16.11

NPS End to End Outside Diameter Minimum Length of Thread
A D B J
1/2 48 28 10.9 13.6
3/4 51 35 12.7 13.9
1 60 44 14.7 17.3
67 57 17 18
79 64 17.8 18.4
2 86 76 19 19.2
92 92 23.6 28.9
3 108 108 25.9 30.5
4 121 140 27.7 33

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