Piping Material Specification

Standard No.... Doc. No....

Issue Date:.. Dec, 20197 of 15

Special Fabricated Larger Diameter Reducers

Reducer O.D.	A	B	Reducer O.D.	A	B
26 x 24	24	1	40 x 32	24	4
26 x 22	24	2	40 x 30	24	5
26 x 20	24	3	* 40 x 28	24	6
26 x 18	24	4	42 x 40	24	1
26 x 16	24	5	42 x 38	24	2
28 x 26	24	1	42 x 36	24	3
28 x 24	24	2	42 x 34	24	4
* 28 x 22	24	3	42 x 32	24	5
28 x 20	24	4	42 x 30	24	6
28 x 18	24	5	44 x 42	24	1
30 x 28	24	1	44 x 40	24	2
30 x 26	24	2	44 x 38	24	3
30 x 24	24	3	44 x 36	24	4
* 30 x 22	24	4	* 44 x 34	24	5
30 x 20	24	5	* 44 x 32	24	6
32 x 30	24	1	46 x 44	28	1
32 x 28	24	2	46 x 42	28	2
32 x 26	24	3	46 x 40	28	3
32 x 24	24	4	46 x 38	28	4
* 32 x 22	24	5	* 46 x 36	24	5
* 32 x 20	24	6	* 46 x 34	24	6
34 x 32	24	1	48 x 46	28	1
34 x 30	24	2	48 x 44	28	2
* 34 x 28	24	3	48 x 42	28	3
34 x 26	24	4	48 x 40	28	4
34 x 24	24	5	* 48 x 38	24	5
36 x 34	24	1	* 48 x 36	24	6
36 x 32	24	2	50 x 48	24	1
36 x 30	24	3	50 x 46	24	2
* 36 x 28	24	4	50 x 44	24	3
36 x 26	24	5	50 x 42	24	4
36 x 24	24	6	50 x 40	24	5
38 x 36	24	1	50 x 38	24	6
38 x 34	24	2	50 x 36	24	7
38 x 32	24	3	52 x 44	30	1
38 x 30	24	4	52 x 42	30	2
38 x 28	24	5	52 x 40	30	3
38 x 26	24	6	52 x 38	30	4
40 x 38	24	1	52 x 36	30	5
40 x 36	24	2	52 x 50	30	6
40 x 34	24	3	52 x 48	30	7
Reducer O.D.	A	B	Reducer O.D.	A	B
52 x 46	30	8	66 x 60	36	3
54 x 52	30	1	66 x 54	36	6
54 x 50	30	2	66 x 48	36	9
54 x 48	30	3	66 x 42	36	12
54 x 46	30	4	68 x 64	36	2
54 x 44	30	5	68 x 60	36	4
54 x 42	30	6	68 x 54	36	7
54 x 38	30	8	68 x 48	36	10
54 x 36	30	9	68 x 42	36	13
54 x 34	30	10	70 x 66	42	2
54 x 32	30	11	70 x 60	42	5
54 x 30	30	12	70 x 54	42	8
56 x 54	30	1	70 x 48	42	11
56 x 52	30	2	70 x 42	42	14
56 x 50	30	3	72 x 66	42	3
56 x 48	30	4	72 x 60	42	6
56 x 46	30	5	72 x 54	42	9
56 x 44	30	6	72 x 48	42	12
56 x 42	30	7	72 x 42	42	15
58 x 56	30	1	78 x 72	48	3
58 x 54	30	2	78 x 66	48	6
58 x 52	30	3	78 x 60	48	9
58 x 48	30	5	78 x 54	48	12
58 x 44	30	7	78 x 48	48	15
58 x 42	30	8	84 x 78	48	3
60 x 56	30	2	84 x 72	48	6
60 x 54	30	3	84 x 66	48	9
60 x 52	30	4	84 x 60	48	12
60 x 48	30	6	84 x 54	48	15
60 x 42	30	9	84 x 48	48	18
62 x 58	30	2	90 x 84	48	3
62 x 54	30	4	90 x 78	48	6
62 x 52	30	5	90 x 72	48	9
62 x 48	30	7	90 x 66	48	12
62 x 44	30	9	90 x 60	48	15
64 x 60	36	2	96 x 90	48	3
64 x 56	36	4	96 x 84	48	6
64 x 54	36	5	96 x 78	48	9
64 x 52	36	6	96 x 72	48	12
64 x 48	36	8	96 x 66	48	15
64 x 42	36	11

Notes..

All dimensions are given in Inches.
These reducers are to be used only when authorized by the piping spec's for the job.
Material shall be as specified in the job piping materials specification class.
Welding shall be in accordance with the job specifications.
Alloy material;s over 1/8" thk. and carbon steel materials 3/16" thk. and over shall have ends beveled for welding in accordance with ASME B16.25 standard.
Reducers marked with asterisk ( * ) and 50" and higher are not ASME B16.9.

Other Pages

Table of contents
Scope, codes, standards and references
General and specific requirements
Abbreviations for piping specifications
Valve tag numbering
Standard installation detail - Utility Station
Special fabricated larger diameter reducers
Four weld 90° LR Miter elbow
Two weld 45° LR Miter elbow
Perforated temporary conical strainers
T-Type strainers
Drip ring
Product sampler cooler
Tolerances for pipe fabrication
Line Blinds NPS 1/2 - NPS 60