ASME B16.11 Plug

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 head plug; hex head plug; round head plug. ASME B16.11 threaded plugs are available in sizes 1/8″ through 4″ and are not identified by class designation. They may be used for pressure ratings up to Class 6000.

ASME B16.11 Forged Fittings (SW & THD)
90° Elbow	45° Elbow	Cross
Tee	Coupling	Half Coupling
Boss	Cap	Couplet
Street Elbow*	Plug*	Bushing*

*Click to view dimensions and masses of ASME B16.11 fittings.

 

Dimensions & Masses

 

NPS	A mm	B mm	C mm	Mass Kg
1/8"	10	6	7.15	0.01
1/4"	11	6	9.55	0.02
3/8"	13	8	11.11	0.03
1/2"	14	10	14.29	0.05
3/4"	16	11	15.88	0.09
1"	19	13	20.64	0.15
1-1/4"	21	14	23.81	0.27
1-1/2"	21	16	28.58	0.40
2"	22	18	33.27	0.68
2-1/2"	27	19	38.10	1.02
3"	28	21	42.86	1.47
4"	32	25	63.50	3.70

*Dimensions A, B, C and masses for ASME B16.11 square head plugs.

 

 

NPS	A mm	H mm	F mm	Mass kg
1/8"	10	6	11.11	0.02
1/4"	11	6	15.88	0.03
3/8"	13	8	17.46	0.05
1/2"	14	8	22.23	0.08
3/4"	16	10	26.99	0.14
1"	19	10	34.93	0.25
1-1/4"	21	14	44.45	0.51
1-1/2"	21	16	50.80	0.64
2"	22	18	63.50	1.06
2-1/2"	27	19	76.20	1.78
3"	28	21	88.90	2.75
4"	32	25	117.48	6.20

*Dimensions A, H, F and masses for ASME B16.11 hex head plugs.

 

 

NPS	A mm	D mm	E mm	Mass kg
1/8"	10	35	10	0.03
1/4"	11	41	14	0.05
3/8"	13	41	18	0.08
1/2"	14	44	21	0.12
3/4"	16	44	27	0.19
1"	19	51	33	0.34
1-1/4"	21	51	43	0.54
1-1/2"	21	51	48	0.74
2"	22	64	60	1.45
2-1/2"	27	70	73	2.22
3"	28	70	89	3.43
4"	32	76	114	6.30

*Dimensions A, D, E and masses for ASME B16.11 round head plugs.