Stainless Threaded Half Coupling

Forged stainless steel high pressure half coupling for threaded outlet connections.

Standard	Pressure Class	Material	Connection
ASME B16.11 / MSS SP-79 / MSS SP-83 / MSS SP-95 / MSS SP-97	2000LB / 3000LB / 6000LB	A182 F304/L, F304H, F316/L, F316Ti, F321, F5, F11, F22, F51, F55, F91	NPT / BSP / R / LP / Gas conic thread

Dimension data from the OTB forged fittings catalog. Slash (/) means the catalog does not list that class or size.

Catalog drawing shows half coupling height as 1/2 W. W values below are the coupling end-to-end reference dimensions.

DN	NPS	Coupling W reference	Approx. 1/2 W	Outside Dia. D 3000	D 6000	Wall G 3000 min	G 6000 min	Thread B min	Thread L2
6	1/8	32	16.0	16	22	4.8	/	6.4	6.7
8	1/4	35	17.5	19	25	4.8	6.4	8.1	10.2
10	3/8	38	19.0	22	32	4.8	6.4	9.1	10.4
15	1/2	48	24.0	30	38	6.4	7.9	10.9	13.6
20	3/4	51	25.5	35	44	6.4	7.9	12.7	13.9
25	1	60	30.0	44	57	9.7	11.2	14.7	17.3
32	1-1/4	67	33.5	57	64	9.7	11.2	17.0	18.0
40	1-1/2	79	39.5	64	76	11.2	12.7	17.8	18.4
50	2	86	43.0	76	92	12.7	15.7	19.0	19.2
65	2-1/2	92	46.0	92	108	15.7	19.0	23.6	28.9
80	3	108	54.0	108	127	19.0	22.4	25.9	30.5
100	4	121	60.5	140	159	22.4	28.4	27.7	33.0

Stainless Threaded Half Coupling dimensions diagram

Stainless Steel High Pressure Fittings