What is threaded half coupling?

What is threaded half coupling?

A threaded half coupling means a steel coupling which only has one thread end, another end of the coupling should be butt welding end. The thread end could be NPT or BSP standard thread. The butt welding end could be a plain end or a bevel end. it could be the connection between a pipe of male thread end and a pipe of no thread end.

When installing this coupling in site, the ends should be in correct direction.

Standard: ASME B16.11 ,Class3000/Class600, BS EN10241

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

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.

MATERIALS: 
Stainless Steel Threaded Half Coupling – SS Threaded Half Coupling 
ASTM A182 F304, 304H, 309, 310, 316, 316L, 317L, 321, 347, 904L 

Duplex Stainless Steel Threaded Half Coupling – Duplex SS Threaded Half Coupling
ASTM / ASME A/SA 182 UNS F 44, F 45, F51, F 53, F 55, F 60, F 61.

Carbon Steel Threaded Half Coupling – CS Threaded Half Coupling
ASTMA 105/A694/ Gr. F42/46/52/56/60/65/70

Low Temperature Carbon Steel Threaded Half Coupling  – LTCS Threaded Half Coupling
A350 LF3/A350 LF2

Alloy Steel Threaded Half Coupling – AS Threaded Half Coupling
ASTM / ASME A/SA 182  F1/F5/F9/F11/F22/F91

Nickel Alloy Threaded Half Coupling  :

Standard:

ASTM / ASME SB 564 / 160 / 472.

UNS 10276 (HASTELLOY C 276 Forged Elbow)
UNS 2200 (NICKEL 200 Forged Elbow ), 
UNS 2201 (NICKEL 201 Forged Elbow ), 
UNS 4400 (MONEL 400 Forged Elbow ), 
UNS 8020 (ALLOY 20 Forged Elbow )
UNS 8825 INCONEL 825 Forged Elbow ), 
UNS 6600 (INCONEL 600 Forged Elbow ), 
UNS 6601 (INCONEL 601 Forged Elbow), 
UNS 6625 (INCONEL 625 Forged Elbow),

Copper Alloy Threaded Half Coupling 
ASTM / ASME SB 61 / 62 / 151 / 152.
C 70600 (CU -NI- 90/10) – Cupro Nickel Forged Elbow 
C 71500 (CU -NI- 70/30) – Copper Nickel Forged Elbow 
UNS NO. C 92200, UNS NO. C 83600, UNS NO.  UNS NO C 10100,
C 10200, C 10300, C 10800, C 12000, C 12200

DIMENSIONS OF ASME B16.11 THREADED HALF COUPLING

 

Dimensions threaded Half 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
1¼	67	57	17	18
1½	79	64	17.8	18.4
2	86	76	19	19.2
2½	92	92	23.6	28.9
3	108	108	25.9	30.5
4	121	140	27.7	33

 

Dimensions threaded Half couplings – NPS 1/2 to 4 – 6000 LBS – ASME B16.11

NPS	End to End	Outside Diameter	Minimum Length of Thread
	A	D	B	J
1/2	48	38	10.9	13.6
3/4	51	44	12.7	13.9
1	60	57	14.7	17.3
1¼	67	64	17	18
1½	79	76	17.8	18.4
2	86	92	19	19.2
2½	92	108	23.6	28.9
3	108	127	25.9	30.5
4	121	159	27.7	33

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