ASME B16.48 Line Blank Dimensions & Thickness Chart

Spectacle Blind Dimensions for Raised Face & Ring Joint Flanges

About

ASME B16.48 covers the dimensional requirements for line blanks (sometimes called spectacle blinds or skillet blinds) for use with ASME B16.5 flanges. Line blanks are used to positively isolate sections of piping systems during maintenance, testing, or shutdown.

The table below includes data from ASME B16.48-2020 for three face types — raised face (Table 4.3.1), ring joint female face (Table 5.1), and ring joint male face (Table 5.1) — across six pressure classes: 150, 300, 600, 900, 1500, and 2500.

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Line Blank Dimensions Table

Use the filters below to look up line blank dimensions by face type, pressure class, and NPS. Toggle between imperial and metric units.

Face Type

Class

NPS

Units

327 rows

NPS	Face Type	Class	ID, B (in)	OD, O (in)	CL, A (in)	Thk, T (in)	Web, W (in)
1/2	Raised Face	150	0.62	1.75	2.38	0.12	1.5
3/4	Raised Face	150	0.82	2.12	2.75	0.12	1.5
1	Raised Face	150	1.05	2.5	3.12	0.12	1.5
1-1/4	Raised Face	150	1.66	2.88	3.5	0.25	1.5
1-1/2	Raised Face	150	1.9	3.25	3.88	0.25	1.5
2	Raised Face	150	2.38	4	4.75	0.25	2
2-1/2	Raised Face	150	2.88	4.75	5.5	0.25	2
3	Raised Face	150	3.5	5.25	6	0.25	2.5
3-1/2	Raised Face	150	4	6.25	7	0.38	2.5
4	Raised Face	150	4.5	6.75	7.5	0.38	2.5
5	Raised Face	150	5.56	7.62	8.5	0.38	3
6	Raised Face	150	6.62	8.62	9.5	0.5	3
8	Raised Face	150	8.62	10.88	11.75	0.5	3
10	Raised Face	150	10.75	13.25	14.25	0.62	4
12	Raised Face	150	12.75	16	17	0.75	4
14	Raised Face	150	14	17.62	18.75	0.75	4.25
16	Raised Face	150	16	20.12	21.25	0.88	4.25
18	Raised Face	150	18	21.5	22.75	1	4.5
20	Raised Face	150	20	23.75	25	1.12	4.75
24	Raised Face	150	24	28.12	29.5	1.25	5.5
1/2	Raised Face	300	0.62	2	2.62	0.25	1.5
3/4	Raised Face	300	0.82	2.5	3.25	0.25	1.5
1	Raised Face	300	1.05	2.75	3.5	0.25	1.5
1-1/4	Raised Face	300	1.66	3.12	3.88	0.25	1.5
1-1/2	Raised Face	300	1.9	3.62	4.5	0.25	1.5
2	Raised Face	300	2.38	4.25	5	0.38	2
2-1/2	Raised Face	300	2.88	5	5.88	0.38	2
3	Raised Face	300	3.5	5.75	6.62	0.38	2.5
3-1/2	Raised Face	300	4	6.38	7.25	0.5	2.5
4	Raised Face	300	4.5	7	7.88	0.5	2.5
5	Raised Face	300	5.56	8.38	9.25	0.62	3
6	Raised Face	300	6.62	9.75	10.62	0.62	3
8	Raised Face	300	8.62	12	13	0.88	3
10	Raised Face	300	10.75	14.12	15.25	1	4
12	Raised Face	300	12.75	16.5	17.75	1.12	4
14	Raised Face	300	14	19	20.25	1.25	4.25
16	Raised Face	300	16	21.12	22.5	1.5	4.25
18	Raised Face	300	18	23.38	24.75	1.62	4.5
20	Raised Face	300	20	25.62	27	1.75	4.75
24	Raised Face	300	24	30.38	32	2	5.5
1/2	Raised Face	600	0.62	2	2.62	0.25	1.5
3/4	Raised Face	600	0.82	2.5	3.25	0.25	1.5
1	Raised Face	600	1.05	2.75	3.5	0.25	2.25
1-1/4	Raised Face	600	1.44	3.12	3.88	0.38	2.25
1-1/2	Raised Face	600	1.68	3.62	4.5	0.38	2.62
2	Raised Face	600	2.16	4.25	5	0.38	2.25
2-1/2	Raised Face	600	2.64	5	5.88	0.5	2.62
3	Raised Face	600	3.26	5.75	6.62	0.5	2.62
3-1/2	Raised Face	600	3.76	6.25	7.25	0.62	3
4	Raised Face	600	4.26	7.5	8.5	0.62	3
5	Raised Face	600	5.3	9.38	10.5	0.75	3.38
6	Raised Face	600	6.36	10.38	11.5	0.88	3.38
8	Raised Face	600	8.33	12.5	13.75	1.12	3.75
10	Raised Face	600	10.42	15.62	17	1.38	4.12
12	Raised Face	600	12.39	17.88	19.25	1.62	4.12
14	Raised Face	600	13.62	19.25	20.75	1.75	4.5
16	Raised Face	600	15.62	22.12	23.75	2	4.88
18	Raised Face	600	17.62	24	25.75	2.12	5.25
20	Raised Face	600	19.56	26.75	28.5	2.5	5.25
24	Raised Face	600	23.5	31	33	2.88	6
1/2	Raised Face	900	0.62	2.38	3.25	0.25	1.5
3/4	Raised Face	900	0.82	2.62	3.5	0.25	1.62
1	Raised Face	900	1.05	3	4	0.25	2.25
1-1/4	Raised Face	900	1.44	3.38	4.38	0.38	2.25
1-1/2	Raised Face	900	1.68	3.75	4.88	0.38	2.62
2	Raised Face	900	2.16	5.5	6.5	0.5	2.25
2-1/2	Raised Face	900	2.64	6.38	7.5	0.5	2.62
3	Raised Face	900	3.26	6.5	7.5	0.62	2.62
4	Raised Face	900	4.26	8	9.25	0.75	3
5	Raised Face	900	5.3	9.62	11	0.88	3.38
6	Raised Face	900	6.36	11.25	12.5	1	3.38
8	Raised Face	900	8.33	14	15.5	1.38	3.75
10	Raised Face	900	10.42	17	18.5	1.62	4.12
12	Raised Face	900	12.39	19.5	21	1.88	4.12
14	Raised Face	900	13.62	20.38	22	2.12	4.5
16	Raised Face	900	15.62	22.5	24.25	2.38	4.88
18	Raised Face	900	17.62	25	27	2.62	5.25
20	Raised Face	900	19.56	27.38	29.5	2.88	5.25
24	Raised Face	900	23.5	32.88	35.5	3.5	6
1/2	Raised Face	1500	0.62	2.38	3.25	0.25	1.5
3/4	Raised Face	1500	0.82	2.62	3.5	0.38	1.62
1	Raised Face	1500	1.05	3	4	0.38	2.2
1-1/4	Raised Face	1500	1.38	3.38	4.38	0.38	2.5
1-1/2	Raised Face	1500	1.61	3.75	4.88	0.5	2.75
2	Raised Face	1500	2.07	5.5	6.5	0.5	2.75
2-1/2	Raised Face	1500	2.47	6.38	7.5	0.62	3
3	Raised Face	1500	3.07	6.75	8	0.75	3
4	Raised Face	1500	4.03	8.12	9.5	0.88	3.5
5	Raised Face	1500	5.05	9.88	11.5	1.12	3.5
6	Raised Face	1500	6.06	11	12.5	1.38	3.5
8	Raised Face	1500	7.98	13.75	15.5	1.62	4
10	Raised Face	1500	10.02	17	19	2	4.5
12	Raised Face	1500	11.94	20.38	22.5	2.38	4.5
14	Raised Face	1500	13.12	22.62	25	2.62	5
16	Raised Face	1500	15	25.12	27.75	3	5.25
18	Raised Face	1500	16.88	27.62	30.5	3.38	5.75
20	Raised Face	1500	18.81	29.62	32.75	3.75	6
24	Raised Face	1500	22.62	35.38	39	4.38	7
1/2	Raised Face	2500	0.62	2.62	3.5	0.38	1.5
3/4	Raised Face	2500	0.82	2.88	3.75	0.38	1.62
1	Raised Face	2500	1.05	3.25	4.25	0.38	2.5
1-1/4	Raised Face	2500	1.38	4	5.12	0.5	2.5
1-1/2	Raised Face	2500	1.61	4.5	5.75	0.62	2.75
2	Raised Face	2500	2.07	5.62	6.75	0.62	2.75
2-1/2	Raised Face	2500	2.47	6.5	7.75	0.75	3
3	Raised Face	2500	3.07	7.62	9	0.88	3
4	Raised Face	2500	4.03	9.12	10.75	1.12	3.5
5	Raised Face	2500	5.05	10.88	12.75	1.38	3.5
6	Raised Face	2500	6.06	12.38	14.5	1.62	3.5
8	Raised Face	2500	7.81	15.12	17.25	2.12	4
10	Raised Face	2500	9.75	18.62	21.25	2.62	4.5
12	Raised Face	2500	11.37	21.5	24.38	3.12	4.5
1	Ring Joint (Female)	150	1.32	2.5	3.12	0.75	2
1-1/4	Ring Joint (Female)	150	1.66	2.88	3.5	0.75	2
1-1/2	Ring Joint (Female)	150	1.9	3.25	3.88	0.75	2.25
2	Ring Joint (Female)	150	2.38	4	4.75	0.75	2.25
2-1/2	Ring Joint (Female)	150	2.88	4.75	5.5	0.88	2.25
3	Ring Joint (Female)	150	3.5	5.25	6	0.88	2.25
3-1/2	Ring Joint (Female)	150	4	6.06	7	0.88	2.5
4	Ring Joint (Female)	150	4.5	6.75	7.5	0.88	2.5
5	Ring Joint (Female)	150	5.56	7.62	8.5	1	2.75
6	Ring Joint (Female)	150	6.62	8.62	9.5	1	3.25
8	Ring Joint (Female)	150	8.62	10.75	11.75	1.12	3.75
10	Ring Joint (Female)	150	10.75	13	14.25	1.25	4
12	Ring Joint (Female)	150	12.75	16	17	1.38	4.75
14	Ring Joint (Female)	150	14	16.75	18.75	1.38	5
16	Ring Joint (Female)	150	16	19	21.25	1.5	5
18	Ring Joint (Female)	150	18	21.5	22.75	1.62	5
20	Ring Joint (Female)	150	20	23.5	25	1.62	5
24	Ring Joint (Female)	150	24	28	29.5	1.88	6
1/2	Ring Joint (Female)	300	0.84	2	2.62	0.62	1.5
3/4	Ring Joint (Female)	300	1.05	2.5	3.25	0.75	1.75
1	Ring Joint (Female)	300	1.32	2.75	3.5	0.75	2
1-1/4	Ring Joint (Female)	300	1.66	3.12	3.88	0.88	2
1-1/2	Ring Joint (Female)	300	1.9	3.56	4.5	0.88	2.25
2	Ring Joint (Female)	300	2.38	4.25	5	1	2.25
2-1/2	Ring Joint (Female)	300	2.88	5	5.88	1.12	2.25
3	Ring Joint (Female)	300	3.5	5.75	6.62	1.12	2.25
3-1/2	Ring Joint (Female)	300	4	6.25	7.25	1.12	2.5
4	Ring Joint (Female)	300	4.5	6.88	7.88	1.25	2.5
5	Ring Joint (Female)	300	5.56	8.25	9.25	1.38	2.75
6	Ring Joint (Female)	300	6.62	9.5	10.62	1.38	3.25
8	Ring Joint (Female)	300	8.62	11.88	13	1.62	3.75
10	Ring Joint (Female)	300	10.75	14	15.25	1.75	4
12	Ring Joint (Female)	300	12.75	16.25	17.75	2	4.75
1/2	Ring Joint (Female)	600	0.84	2	2.62	0.75	1.5
3/4	Ring Joint (Female)	600	1.05	2.5	3.25	0.88	1.75
1	Ring Joint (Female)	600	1.32	2.75	3.5	0.88	2
1-1/4	Ring Joint (Female)	600	1.66	3.12	3.88	0.88	2
1-1/2	Ring Joint (Female)	600	1.9	3.56	4.5	0.88	2.25
2	Ring Joint (Female)	600	2.38	4.25	5	1.12	2.25
2-1/2	Ring Joint (Female)	600	2.88	5	5.88	1.25	2.25
3	Ring Joint (Female)	600	3.5	5.75	6.62	1.25	2.25
3-1/2	Ring Joint (Female)	600	4	6.25	7.25	1.38	2.5
4	Ring Joint (Female)	600	4.5	6.88	8.5	1.38	2.5
5	Ring Joint (Female)	600	5.56	8.25	10.5	1.5	2.75
6	Ring Joint (Female)	600	6.62	9.5	11.5	1.75	3.25
8	Ring Joint (Female)	600	8.62	11.88	13.75	2	3.75
10	Ring Joint (Female)	600	10.75	14	17	2.25	4
12	Ring Joint (Female)	600	12.75	16.25	19.25	2.5	4.75
14	Ring Joint (Female)	600	14	18	20.75	2.62	5
16	Ring Joint (Female)	600	16	20	23.75	2.88	5
18	Ring Joint (Female)	600	18	22.62	25.75	3.12	5
20	Ring Joint (Female)	600	20	25	28.5	3.5	5
24	Ring Joint (Female)	600	24	29.5	33	4.12	6
1/2	Ring Joint (Female)	900	0.84	2.38	3.25	0.88	1.5
3/4	Ring Joint (Female)	900	1.05	2.62	3.5	0.88	1.75
1	Ring Joint (Female)	900	1.32	2.81	4	0.88	2
1-1/4	Ring Joint (Female)	900	1.66	3.19	4.38	1	2
1-1/2	Ring Joint (Female)	900	1.9	3.62	4.88	1	2.5
2	Ring Joint (Female)	900	2.38	4.88	6.5	1.25	2
2-1/2	Ring Joint (Female)	900	2.88	5.38	7.5	1.38	2.62
3	Ring Joint (Female)	900	3.5	6.12	7.5	1.38	2.62
4	Ring Joint (Female)	900	4.5	7.12	9.25	1.62	2.88
5	Ring Joint (Female)	900	5.56	8.5	11	1.75	2.88
6	Ring Joint (Female)	900	6.62	9.5	12.5	1.88	2.88
8	Ring Joint (Female)	900	8.62	12.12	15.5	2.25	3.12
10	Ring Joint (Female)	900	10.75	14.25	18.5	2.5	4.75
12	Ring Joint (Female)	900	12.75	16.5	21	2.88	4.75
14	Ring Joint (Female)	900	14	18.38	22	3.25	4.75
16	Ring Joint (Female)	900	16	20.62	24.25	3.62	5
18	Ring Joint (Female)	900	18	23.38	27	4	5.25
20	Ring Joint (Female)	900	20	25.5	29.5	4.38	5
24	Ring Joint (Female)	900	24	30.38	35.5	5.25	5.5
1/2	Ring Joint (Female)	1500	0.84	2.38	3.25	0.88	1.5
3/4	Ring Joint (Female)	1500	1.05	2.62	3.5	1	1.75
1	Ring Joint (Female)	1500	1.32	2.81	4	1	2.12
1-1/4	Ring Joint (Female)	1500	1.66	3.19	4.38	1	2.12
1-1/2	Ring Joint (Female)	1500	1.9	3.62	4.88	1.12	2.25
2	Ring Joint (Female)	1500	2.38	4.88	6.5	1.38	2.12
2-1/2	Ring Joint (Female)	1500	2.88	5.38	7.5	1.5	2.25
3	Ring Joint (Female)	1500	3.5	6.62	8	1.75	2.88
4	Ring Joint (Female)	1500	4.5	7.62	9.5	1.88	3
5	Ring Joint (Female)	1500	5.56	9	11.5	2.12	3
6	Ring Joint (Female)	1500	6.62	9.75	12.5	2.38	3.12
8	Ring Joint (Female)	1500	8.62	12.5	15.5	2.88	3.38
10	Ring Joint (Female)	1500	10.75	14.62	19	3.25	5.25
12	Ring Joint (Female)	1500	12.75	17.25	22.5	4	5.25
14	Ring Joint (Female)	1500	14	19.25	25	4.38	5.5
16	Ring Joint (Female)	1500	16	21.5	27.75	4.88	5.75
18	Ring Joint (Female)	1500	18	24.12	30.5	5.25	6
20	Ring Joint (Female)	1500	20	26.5	32.75	5.62	6.5
24	Ring Joint (Female)	1500	24	31.25	39	6.62	7
1/2	Ring Joint (Female)	2500	0.84	2.56	3.5	1	1.5
3/4	Ring Joint (Female)	2500	1.05	2.88	3.75	1.12	1.75
1	Ring Joint (Female)	2500	1.32	3.25	4.25	1.12	2.12
1-1/4	Ring Joint (Female)	2500	1.66	4	5.12	1.38	2.12
1-1/2	Ring Joint (Female)	2500	1.9	4.5	5.75	1.5	2.38
2	Ring Joint (Female)	2500	2.38	5.25	6.75	1.62	2.25
2-1/2	Ring Joint (Female)	2500	2.88	5.88	7.75	1.88	2.38
3	Ring Joint (Female)	2500	3.5	6.62	9	2	3
4	Ring Joint (Female)	2500	4.5	8	10.75	2.5	3.25
5	Ring Joint (Female)	2500	5.56	9.5	12.75	2.88	3.5
6	Ring Joint (Female)	2500	6.62	11	14.5	3.25	3.75
8	Ring Joint (Female)	2500	8.62	13.38	17.25	3.88	3.75
10	Ring Joint (Female)	2500	10.75	16.75	21.25	4.62	3.58
12	Ring Joint (Female)	2500	12.75	19.5	24.38	5.25	6
1	Ring Joint (Male)	150	1.32	—	3.12	0.25	2
1-1/4	Ring Joint (Male)	150	1.66	—	3.5	0.25	2
1-1/2	Ring Joint (Male)	150	1.9	—	3.88	0.25	2.25
2	Ring Joint (Male)	150	2.38	—	4.75	0.25	2.25
2-1/2	Ring Joint (Male)	150	2.88	—	5.5	0.38	2.25
3	Ring Joint (Male)	150	3.5	—	6	0.38	2.25
3-1/2	Ring Joint (Male)	150	4	—	7	0.38	2.5
4	Ring Joint (Male)	150	4.5	—	7.5	0.38	2.5
5	Ring Joint (Male)	150	5.56	—	8.5	0.5	3
6	Ring Joint (Male)	150	6.62	—	9.5	0.5	3.25
8	Ring Joint (Male)	150	8.62	—	11.75	0.62	3.75
10	Ring Joint (Male)	150	10.75	—	14.25	0.75	4
12	Ring Joint (Male)	150	12.75	—	17	0.88	4.75
14	Ring Joint (Male)	150	14	—	18.75	0.88	5
16	Ring Joint (Male)	150	16	—	21.25	1	5
18	Ring Joint (Male)	150	18	—	22.75	1.12	5
20	Ring Joint (Male)	150	20	—	25	1.12	5
24	Ring Joint (Male)	150	24	—	29.5	1.38	6
1/2	Ring Joint (Male)	300	0.84	—	2.62	0.25	1.5
3/4	Ring Joint (Male)	300	1.05	—	3.25	0.38	1.75
1	Ring Joint (Male)	300	1.32	—	3.5	0.38	2
1-1/4	Ring Joint (Male)	300	1.66	—	3.88	0.38	2
1-1/2	Ring Joint (Male)	300	1.9	—	4.5	0.38	2.25
2	Ring Joint (Male)	300	2.38	—	5	0.5	2.25
2-1/2	Ring Joint (Male)	300	2.88	—	5.88	0.62	2.25
3	Ring Joint (Male)	300	3.5	—	6.62	0.62	2.25
3-1/2	Ring Joint (Male)	300	4	—	7.25	0.62	2.5
4	Ring Joint (Male)	300	4.5	—	7.88	0.62	2.5
5	Ring Joint (Male)	300	5.56	—	9.25	0.75	3
6	Ring Joint (Male)	300	6.62	—	10.62	0.88	3.25
8	Ring Joint (Male)	300	8.62	—	13	1	3.75
10	Ring Joint (Male)	300	10.75	—	15.25	1.12	4
12	Ring Joint (Male)	300	12.75	—	17.75	1.38	4.75
14	Ring Joint (Male)	300	14	—	20.25	1.5	5
16	Ring Joint (Male)	300	16	—	22.5	1.62	5
18	Ring Joint (Male)	300	18	—	24.75	1.75	5
20	Ring Joint (Male)	300	20	—	27	2	5
24	Ring Joint (Male)	300	24	—	32	2.25	6
1/2	Ring Joint (Male)	600	0.84	—	2.62	0.25	1.5
3/4	Ring Joint (Male)	600	1.05	—	3.25	0.38	1.75
1	Ring Joint (Male)	600	1.32	—	3.5	0.38	2
1-1/4	Ring Joint (Male)	600	1.66	—	3.88	0.38	2.25
1-1/2	Ring Joint (Male)	600	1.9	—	4.5	0.38	2.25
2	Ring Joint (Male)	600	2.38	—	5	0.5	2
2-1/2	Ring Joint (Male)	600	2.88	—	5.88	0.62	2.25
3	Ring Joint (Male)	600	3.5	—	6.62	0.62	2.62
3-1/2	Ring Joint (Male)	600	4	—	7.25	0.75	2.62
4	Ring Joint (Male)	600	4.5	—	8.5	0.75	2.88
5	Ring Joint (Male)	600	5.56	—	10.5	0.88	2.88
6	Ring Joint (Male)	600	6.62	—	11.5	1.12	2.88
8	Ring Joint (Male)	600	8.62	—	13.75	1.38	3.25
10	Ring Joint (Male)	600	10.75	—	17	1.62	4.75
12	Ring Joint (Male)	600	12.75	—	19.25	1.88	4.75
14	Ring Joint (Male)	600	14	—	20.75	2	4.75
16	Ring Joint (Male)	600	16	—	23.75	2.25	5
18	Ring Joint (Male)	600	18	—	25.75	2.5	5.25
20	Ring Joint (Male)	600	20	—	28.5	2.75	5
24	Ring Joint (Male)	600	24	—	33	3.25	6
1/2	Ring Joint (Male)	900	0.84	—	3.25	0.38	1.5
3/4	Ring Joint (Male)	900	1.05	—	3.5	0.38	1.75
1	Ring Joint (Male)	900	1.32	—	4	0.38	2
1-1/4	Ring Joint (Male)	900	1.66	—	4.38	0.5	2.12
1-1/2	Ring Joint (Male)	900	1.9	—	4.88	0.5	2.12
2	Ring Joint (Male)	900	2.38	—	6.5	0.62	2
2-1/2	Ring Joint (Male)	900	2.88	—	7.5	0.75	2.12
3	Ring Joint (Male)	900	3.5	—	7.5	0.75	2.62
4	Ring Joint (Male)	900	4.5	—	9.25	1	2.88
5	Ring Joint (Male)	900	5.56	—	11	1.12	2.88
6	Ring Joint (Male)	900	6.62	—	12.5	1.25	2.88
8	Ring Joint (Male)	900	8.62	—	15.5	1.62	3.12
10	Ring Joint (Male)	900	10.75	—	18.5	1.88	4.75
12	Ring Joint (Male)	900	12.75	—	21	2.25	4.75
14	Ring Joint (Male)	900	14	—	22	2.38	4.75
16	Ring Joint (Male)	900	16	—	24.25	2.75	5
18	Ring Joint (Male)	900	18	—	27	3	5.25
20	Ring Joint (Male)	900	20	—	29.5	3.38	5
24	Ring Joint (Male)	900	24	—	35.5	3.88	6
1/2	Ring Joint (Male)	1500	0.84	—	3.25	0.38	1.5
3/4	Ring Joint (Male)	1500	1.05	—	3.5	0.38	1.75
1	Ring Joint (Male)	1500	1.32	—	4	0.5	2.12
1-1/4	Ring Joint (Male)	1500	1.66	—	4.38	0.5	2.12
1-1/2	Ring Joint (Male)	1500	1.9	—	4.88	0.62	2.25
2	Ring Joint (Male)	1500	2.38	—	6.5	0.75	2.12
2-1/2	Ring Joint (Male)	1500	2.88	—	7.5	0.88	2.25
3	Ring Joint (Male)	1500	3.5	—	8	1.12	2.88
4	Ring Joint (Male)	1500	4.5	—	9.5	1.25	3
5	Ring Joint (Male)	1500	5.56	—	11.5	1.5	3
6	Ring Joint (Male)	1500	6.62	—	12.5	1.62	3.12
8	Ring Joint (Male)	1500	8.62	—	15.5	2	3.38
10	Ring Joint (Male)	1500	10.75	—	19	2.5	5.25
12	Ring Joint (Male)	1500	12.75	—	22.5	2.88	5.25
14	Ring Joint (Male)	1500	14	—	25	3.12	5.5
16	Ring Joint (Male)	1500	16	—	27.75	3.5	5.75
18	Ring Joint (Male)	1500	18	—	30.5	3.88	6
20	Ring Joint (Male)	1500	20	—	32.75	4.25	6.5
24	Ring Joint (Male)	1500	24	—	39	5	7
1/2	Ring Joint (Male)	2500	0.84	—	3.5	0.5	1.62
3/4	Ring Joint (Male)	2500	1.05	—	3.75	0.62	1.88
1	Ring Joint (Male)	2500	1.32	—	4.25	0.62	2.12
1-1/4	Ring Joint (Male)	2500	1.66	—	5.12	0.75	2.12
1-1/2	Ring Joint (Male)	2500	1.9	—	5.75	0.88	2.38
2	Ring Joint (Male)	2500	2.38	—	6.75	1	2.25
2-1/2	Ring Joint (Male)	2500	2.88	—	7.75	1.12	2.38
3	Ring Joint (Male)	2500	3.5	—	9	1.25	3
4	Ring Joint (Male)	2500	4.5	—	10.75	1.5	3.25
5	Ring Joint (Male)	2500	5.56	—	12.75	1.88	3.5
6	Ring Joint (Male)	2500	6.62	—	14.5	2.25	3.75
8	Ring Joint (Male)	2500	8.62	—	17.25	2.75	3.75
10	Ring Joint (Male)	2500	10.75	—	21.25	3.25	3.75
12	Ring Joint (Male)	2500	12.75	—	24.38	3.88	6

Data sourced from ASME B16.48-2020, Tables 4.3.1 and 5.1.

How to Use This Chart

To find dimensions for a specific line blank, select the face type, pressure class, and NPS using the dropdown filters above. The chart will display the corresponding dimensions.

NPS — Nominal Pipe Size
ID, B — Inside diameter of the bore
OD, O — Outside diameter of the blank (not available for ring joint male face)
CL, A — Centerline dimension (center-to-edge distance)
Thk, T — Thickness of the blank plate
Web, W — Web width connecting the blank and spacer sections