Custom 6x4 Eccentric Reducer, ASTM A403 WP316/316L, SCH 40, ASTM B16.9, OEM Forging Factory

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Product Details

There are two types of reducers: concentric reducers and eccentric reducers. The shape of the eccentric reducer is asymmetric, and the centers of the two ends are offset from each other. This design allows for gradual transitions between pipes of different diameters, while changing the elevation or position of the pipes. Eccentric reducers are usually used in situations where vertical or horizontal adjustment of the pipeline is required to ensure optimal flow rate. They can be applied in industries such as oil and gas pipelines, sewage treatment, chemical manufacturing, and wastewater management.

Butt Weld Reducers

Concentric and Eccentric ASME B16.9

Dimensions are in millimeters unless otherwise indicated. Wall thickness (t) must be specified by customer.

NPS	O.D. D	O.D. D1	Length H
3/4 - 1/2	26.7	21.3	38
1 - 1/2	33.4	21.3	51
1 - 3/4	33.4	26.7	51
1.1/4 - 1/2	42.2	21.3	51
1.1/4 - 3/4	42.2	26.7	51
1.1/4 - 1	42.2	33.4	51
1.1/2 - 1/2	48.3	21.3	64
1.1/2 - 3/4	48.3	26.7	64
1.1/2 - 1	48.3	33.4	64
1.1/2 - 1.1/4	48.3	42.2	64
2 - 3/4	60.3	26.7	76
2 - 1	60.3	33.4	76
2 - 1.1/4	60.3	42.2	76
2 - 1.1/2	60.3	48.3	76
2.1/2 - 1	73	33.4	89
2.1/2 - 1.1/4	73	42.2	89
2.1/2 - 1.1/2	73	48.3	89
2.1/2 - 2	73	60.3	89
3 - 1.1/4	88.9	42.2	89
3 - 1.1/2	88.9	48.3	89
3 - 2	88.9	60.3	89
3 - 2.1/2	88.9	73	89
3.1/2 - 1.1/4	101.6	42.2	102
3.1/2 - 1.1/2	101.6	48.3	102
3.1/2 - 2	101.6	60.3	102
3.1/2 - 2.1/2	101.6	73	102
3.1/2 - 3	101.6	88.9	102
4 - 1.1/2	114.3	48.3	102
4 - 2	114.3	60.3	102
4 - 2.1/2	114.3	73	102
4 - 3	114.3	88.9	102
4 - 3.1/2	114.3	101.6	102
5 - 2	141.3	60.3	127
5 - 2.1/2	141.3	73	127
5 - 3	141.3	88.9	127
5 - 3.1/2	141.3	101.6	127
5 - 4	141.3	114.3	127
6 - 2.1/2	168.3	73	140
6 - 3	168.3	88.9	140
6 - 3.1/2	168.3	101.6	140
6 - 4	168.3	114.3	140
6 - 5	168.3	141.3	140
8 - 3.1/2	219.1	101.6	152
8 - 4	219.1	114.3	152
8 - 5	219.1	141.3	152
8 - 6	219.1	168.3	152
10 - 4	273	114.3	178
10 - 5	273	141.3	178
10 - 6	273	168.3	178
10 - 8	273	219.1	178
12 - 5	323.9	141.3	203
12 - 6	323.9	168.3	203
12 - 8	323.9	219.1	203
12 - 10	323.9	273	203
14 - 6	355.6	168.3	330
14 - 8	355.6	219.1	330
14 - 10	355.6	273	330
14 - 12	355.6	323.9	330
16 - 8	406.4	219	356
16 - 10	406.4	273	356
16 - 12	406.4	323.9	356
16 - 14	406.4	355.6	356
18 - 10	457	273	381
18 - 12	457	323.9	381
18 - 14	457	355.6	381
18 - 16	457	406.4	381
20 - 12	508	323.9	508
20 - 14	508	355.6	508
20 - 16	508	406.4	508
20 - 18	508	457	508
22 - 14	559	355.6	508
22 - 16	559	406.4	508
22 - 18	559	457	508
22 - 20	559	508	508
24 - 16	610	406.4	508
24 - 18	610	457	508
24 - 20	610	508	508
24 - 22	610	559	508
26 - 18	660	457	610
26 - 20	660	508	610
26 - 22	660	559	610
26 - 24	660	610	610
28 - 18	711	457	610
28 - 20	711	508	610
28 - 24	711	610	610
28 - 26	711	660	610
30 - 20	762	508	610
30 - 24	762	610	610
30 - 26	762	660	610
30 - 28	762	711	610
32 - 24	813	610	610
32 - 26	813	660	610
32 - 28	813	711	610
32 - 30	813	762	610
34 - 24	864	610	610
34 - 26	864	660	610
34 - 30	864	762	610
34 - 32	864	813	610
36 - 24	914	610	610
36 - 26	914	660	610
36 - 30	914	762	610
36 - 32	914	813	610
36 - 34	914	864	610
38 - 26	965	660	610
38 - 28	965	711	610
38 - 30	965	762	610
38 - 32	965	813	610
38 - 34	965	864	610
38 - 36	965	914	610
40 - 30	1016	762	610
40 - 32	1016	813	610
40 - 34	1016	864	610
40 - 36	1016	914	610
40 - 38	1016	965	610

A concentric reducer is cone-shaped and has an axis of symmetry. It has large and small openings that align with the centerlines of the connecting pipes. The reduction in pipe size is uniform, resulting in a reduction in both the diameter and the thickness of the pipe wall.

An eccentric reducer, on the other hand, is similar in shape to a concentric reducer but has an off-center alignment between the two openings. This results in an offset between the centerlines of the inlet and outlet pipes. Eccentric reducers are primarily used to prevent the accumulation of gas pockets or condensate in horizontal piping systems where drainage is necessary.

Reducers are suitable for chemical, petroleum, natural gas, pharmaceutical, food and other industries, and are widely used in pipeline systems under complex conditions such as high pressure, high temperature, low temperature, strong corrosion, etc. Especially in highly automated production lines and engineering projects, reducers are used more widely.

Specification:

Elbow Degree	45, 90, 180 Deg. Long/Short Radius Elbows
Size Range	Carbon Steel: 1/2”-96” Stainless Steel: 1/2” – 24” (Seamless and ERW), 26” – 72” (Welded)
Schedule	SCH5S, 10S, 40S, STD, 80S, XS, XXS, SCH10-SCH160
Pressure Ratings	Threaded fittings: 2000lbs, 3000lbs, 6000lbs. Socket-weld fittings: 3000lbs, 6000lbs, 9000lbs.
Pipe Fitting Standard	ANSI B16.9, ANSI B16.28, DIN 2605, DIN2615, DIN2616, JIS B2312, JIS B2313, ANSI/ASME B16.11, MSS SP-43, SP-79, SP-83, SP-95-, SP-97, BS3799, JIS B2316

Pipe Fitting Material:

Carbon Steel	ASTM A 234 WPB, A420 WPL1, WPL3, WPL6, ASTM A860 WPHY 42, WPHY52, WPHY60, WPHY65, WPHY70
Stainless Steel	ASTM A403 WP304/304L, WP316/316L, WP321, WP347
Alloy Steel	ASTM A234 WP1, WP5, WP9, WP11, WP12, WP22, WP91
Duplex & Super Duplex Steel	ASTM A815 UNS S31803, UNS S32750, UNS S32760
Nickel & Nickel Alloy	Nickel 200, Nickel 201, Monel 400, Hastelloy B/B-2/C-4/C-22/C-276, Invar 36 Incoloy 800/800H/800HT/825/901/926, A-286, Inconel 600/601/625/718/X-750,
Titanium & Titanium Alloy	ASTM B265 Gr.1, Gr.2, Gr.7, Gr.12, ASTM B381 F1, F2, F7, F12

Service:

Surface Treatment	Black painting, anti-rust varnish, anti-rust oil, hot-galvanized
Non-destructive Testing	penetration test (PT), ultrasonic test (UT), radiographic test(RT)
Certificate	CE, ISO, PED, TS, BV, CQC Certificates
Packing	Plywood Case or Pallet