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Reducer

Standard: ASME B16.9, DIN2615, JIS B2312, ASME B16.11

Material: Carbon Steel ASTM A234 WPB,

Alloy Steel ASTM A234 WP1, WP5, WP9, WP11, WP22

Stainless Steel ASTM A403 304/316

Types: Equal and Reducing

Size Range: 1/2″ to 24″

Wall thickness: Sch10, Sch40, Sch80

Pressure Rations: 3000#, 6000#, 9000#

Concentric Pipe Reducer and Eccentric Pipe Reducer Dimensions are covered in ASME B16.9. Refer to the table given below for the size 1/2″ to 24″.

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Description

Concentric Reducers (CR)

Concentric reducers are used to transition between pipes of the same diameter. They come in both steel and cast iron, and they can be found in a variety of sizes, including 2-inch, 3-inch, 4-inch and 6-inch. They are also known as male reducers because their outside diameter is larger than the inside diameter of their mating part (in this case a female adapter).

Eccentric Reducers (ER)

Eccentric reducers are used to transition between pipes of different diameters. The eccentric design allows for the joining of a pipe with an inside diameter that is larger than another.

Specification

NPS1	NPS2	OD1	OD2	H
3/4	1/2	26.7	21.3	38
3/4	3/8	26.7	17.3	38
1	3/4	33.4	26.7	51
1	1/2	33.4	21.3	51
1-1/4	1	42.2	33.4	51
1-1/4	3/4	42.2	26.7	51
1-1/4	1/2	42.2	21.3	51
1-1/2	1-1/4	48.3	42.2	64
1-1/2	1	48.3	33.4	64
1-1/2	3/4	48.3	26.7	64
1-1/2	1/2	48.3	21.3	64
2	1-1/2	60.3	48.3	76
2	1-1/4	60.3	42.2	76
2	1	60.3	33.4	76
2	3/4	60.3	26.7	76
NPS1	NPS2	OD1	OD2	H
2-1/2	2	73.0	60.3	89
2-1/2	1-1/2	73.0	48.3	89
2-1/2	1-1/4	73.0	42.2	89
2-1/2	1	73.0	33.4	89
3	2-1/2	88.9	73.0	89
3	2	88.9	60.3	89
3	1-1/2	88.9	48.3	89
3	1-1/4	88.9	42.2	89
3-1/2	3	101.6	88.9	102
3-1/2	2-1/2	101.6	73.0	102
3-1/2	2	101.6	60.3	102
3-1/2	1-1/2	101.6	48.3	102
3-1/2	1-1/4	101.6	42.2	102
4	3-1/2	114.3	101.6	102
4	3	114.3	88.9	102
NPS1	NPS2	OD1	OD2	H
4	2-1/2	114.3	73.0	102
4	2	114.3	60.3	102
4	1-1/2	114.3	48.3	102
5	4	141.3	114.3	127
5	3-1/2	141.3	101.6	127
5	3	141.3	88.9	127
5	2-1/2	141.3	73.0	127
5	2	141.3	60.3	127
6	5	168.3	141.3	140
6	4	168.3	114.3	140
6	3-1/2	168.3	101.6	140
6	3	168.3	88.9	140
6	2-1/2	168.3	73.0	140
8	6	219.1	168.3	152
8	5	219.1	141.3	152
NPS1	NPS2	OD1	OD2	H
8	4	219.1	114.3	152
8	3-1/2	219.1	101.6	152
10	8	273.0	219.1	178
10	6	273.0	168.3	178
10	5	273.0	141.3	178
10	4	273.0	114.3	178
12	10	323.8	273.0	203
12	8	323.8	219.1	203
12	6	323.8	168.3	203
12	5	323.8	141.3	203
14	12	355.6	323.8	330
14	10	355.6	273.0	330
14	8	355.6	219.1	330
14	6	355.6	168.3	330
16	14	406.4	355.6	356
NPS1	NPS2	OD1	OD2	H
16	12	406.4	323.8	356
16	10	406.4	273.0	356
16	8	406.4	219.1	356
18	16	457.0	406.4	381
18	14	457.0	355.6	381
18	12	457.0	323.8	381
18	10	457.0	273.0	381
20	18	508.0	457.0	508
20	16	508.0	406.4	508
20	14	508.0	355.6	508
20	12	508.0	323.8	508
22	20	559.0	508.0	508
22	18	559.0	457.0	508
22	16	559.0	406.4	508
22	14	559.0	355.4	508
NPS1	NPS2	OD1	OD2	H
24	22	610.0	559.0	508
24	20	610.0	508.0	508
24	18	610.0	457.0	508
24	16	610.0	406.4	508
26	24	660.0	610.0	610
26	22	660.0	559.0	610
26	20	660.0	508.0	610
26	18	660.0	457.0	610
28	26	711.0	660.0	610
28	24	711.0	610.0	610
28	20	711.0	508.0	610
28	18	711.0	457.0	610
30	28	762.0	711.0	610
30	26	762.0	660.0	610
30	24	762.0	610.0	610
NPS1	NPS2	OD1	OD2	H
30	20	762.0	508.0	610
32	30	813.0	762.0	610
32	28	813.0	711.0	610
32	26	813.0	660.0	610
32	24	813.0	610.0	610
34	32	864.0	813.0	610
34	30	864.0	762.0	610
34	26	864.0	660.0	610
34	24	864.0	610.0	610
36	34	914.0	864.0	610
36	32	914.0	813.0	610
36	30	914.0	762.0	610
36	26	914.0	660.0	610
36	24	914.0	610.0	610
38	36	965.0	914.0	610
NPS1	NPS2	OD1	OD2	H
38	34	965.0	864.0	610
38	32	965.0	813.0	610
38	30	965.0	762.0	610
38	28	965.0	711.0	610
38	26	965.0	660.0	610
40	38	1016.0	965.0	610
40	36	1016.0	914.0	610
40	34	1016.0	864.0	610
40	32	1016.0	813.0	610
40	30	1016.0	762.0	610
42	40	1067.0	1016.0	610
42	38	1067.0	965.0	610
42	36	1067.0	914.0	610
42	34	1067.0	864.0	610
42	32	1067.0	813.0	610
NPS1	NPS2	OD1	OD2	H
42	30	1067.0	762.0	610
44	42	1118.0	1067.0	610
44	40	1118.0	1016.0	610
44	38	1118.0	965.0	610
44	36	1118.0	914.0	610
46	44	1168.0	1118.0	711
46	42	1168.0	1067.0	711
46	40	1168.0	1016.0	711
46	38	1168.0	965.0	711
48	46	1219.0	1168.0	711
48	44	1219.0	1118.0	711
48	42	1219.0	1067.0	711
48	40	1219.0	1016.0	711
NPS1	NPS2	OD1	OD2	H

Standard

Stainless Steel Reducer : ASTM A403 WP Gr. 304, 304H, 309, 310, 316, 316L, 317L, 321, 347, 904L.

Carbon Steel Reducer : ASTM A 234 WPB , WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70.

Low Temperature Carbon Steel Reducer : ASTM A420 WPL3, A420 WPL6.

Alloy Steel Reducer : ASTM / ASME A/SA 234 Gr. WP 1, WP 5, WP 9, WP 11, WP 12, WP 22, WP 91.

Duplex Steel Reducer : ASTM A 815, ASME SA 815 UNS NO S31803, S32205. Werkstoff No. 1.4462.

Titanium Alloy Reducer : ASTM B363 WPT2, WPT3, WPT7, WPT9, WPT11

Nickel Alloy Reducer : ASTM / ASME SB 336 UNS 2200 ( NICKEL 200 ), UNS 2201 (NICKEL 201 ), UNS 4400 (MONEL 400 ), UNS 8020 ( ALLOY 20 / 20 CB 3, UNS 8825 INCONEL (825), UNS 6600 (INCONEL 600 ), UNS 6601 ( INCONEL 601 ), UNS 6625 (INCONEL 625), UNS 10276 ( HASTELLOY C 276).

Copper Alloy Reducer: ASTM / ASME SB 111 UNS NO. C 10100 , C 10200 , C 10300 , C 10800 , C 12000, C 12200, C 70600 C 71500, ASTM / ASME SB 466 UNS NO. C 70600 ( CU -NI- 90/10) , C 71500 ( CU -NI- 70/30)