Stainless Steel Eccentric Reducer
S&S Stainless International manufactures industrial-grade stainless steel eccentric reducers engineered to join pipes of differing diameters along an offset, flat-sided alignment. Designed to maintain a single level line, these fittings prevent gas entrapment and cavitation in horizontal pump suction lines (flat side up) and ensure complete liquid drainage without sediment buildup (flat side down). Produced in high-grade 304/304L and 316/316L stainless steel to ANSI/ASME B16.9 and MSS SP-43 specifications, our seamless and welded butt-weld eccentric reducers provide exceptional mechanical strength and long-term corrosion resistance for demanding oil and gas, chemical processing, power generation, and water treatment applications worldwide.
What is Eccentric Reducer?
The stainless steel eccentric reducer is a precision-engineered ASME B16.9 stainless steel pipe fitting designed to connect stainless steel pipes of varying diameters while maintaining an offset alignment. This stainless steel eccentric reducer is ideal for applications where uninterrupted fluid flow is required, as its unique design prevents the pooling of liquids, especially in horizontal piping systems. Made from high-quality stainless steel, our stainless steel eccentric reducer provides excellent corrosion resistance, durability, and strength, making it suitable for a wide range of demanding industries.
Manufactured to meet international standards such as ASTM, JIS, and DIN, our stainless steel eccentric reducers ensure reliable performance and precision in industries like oil and gas, chemical processing, and water treatment.
Product Overview of stainless steel eccentric reducer
- Specification
- Material Grade 304, 316, 316L
- Nominal Pipe Size 3/4”x1/2” – 48”x40”
- Thickness SCH 5S, SCH 10S, SCH 20S, SCH 40S, SCH 80S, STD, XS
- Product Weight
- The weight chart for the stainless steel eccentric reducer can be found in the reference information
- Product Packaging
Standard stainless steel export package by wooden bundle
- Secure and Durable Protection. The export wooden bundle ensures that the stainless steel pipe fittings remain intact and undamaged, even under rough handling and long-distance shipping conditions.
- Carefully Packed and labeled. Each item is meticulously packed in accordance with the packing list to ensure the right quantity and correct product types are included in every shipment.
Product Specification of stainless steel eccentric reducer
3/4” – 12”
Nominal
Pipe
Size (inch)
Outside
Diameter (mm)
Thickness (mm)
Length H
(mm)
SCH 5S
SCH 10S
SCH 40S
SCH 80S
1
2
T1
T2
T1
T2
T1
T2
T1
T2
¾’’
½’’
26.7
21.3
1.65
1.65
2.11
2.11
2.87
2.77
3.91
3.73
38.1
1’’
½’’
33.4
21.3
1.65
1.65
2.77
2.11
3.38
2.77
4.55
3.73
50.8
1’’
¾’’
33.4
26.7
1.65
1.65
2.77
2.11
3.38
2.87
4.55
3.91
50.8
1 ¼’’
1’’
42.2
33.4
1.65
1.65
2.77
2.77
3.56
3.38
4.85
4.55
50.8
1 ½’’
½’’
48.3
21.3
1.65
1.65
2.77
2.11
3.68
2.77
5.08
3.73
63.5
1 ½’’
¾’’
48.3
26.7
1.65
1.65
2.77
2.11
3.68
2.87
5.08
3.91
63.5
1 ½’’
1’’
48.3
33.4
1.65
1.65
2.77
2.77
3.68
3.38
5.08
4.55
63.5
1 ½’’
1 ¼’’
48.3
42.2
1.65
1.65
2.77
2.77
3.68
3.56
5.08
4.85
63.5
2’’
¾’’
60.3
26.7
1.65
1.65
2.77
2.11
3.91
2.87
5.54
3.91
76.2
2’’
1’’
60.3
33.4
1.65
1.65
2.77
2.77
3.91
3.38
5.54
4.55
76.2
2’’
1 ¼’’
60.3
42.2
1.65
1.65
2.77
2.77
3.91
3.56
5.54
4.85
76.2
2’’
1 ½’’
60.3
48.3
1.65
1.65
2.77
2.77
3.91
3.68
5.54
5.08
76.2
2 ½’’
1’’
73.0
33.4
2.11
1.65
3.05
2.77
5.16
3.38
7.01
4.55
88.9
2 ½’’
1 ¼’’
73.0
42.2
2.11
1.65
3.05
2.77
5.16
3.56
7.01
4.85
88.9
2 ½’’
1 ½’’
73.0
48.3
2.11
1.65
3.05
2.77
5.16
3.68
7.01
5.08
88.9
2 ½’’
2’’
73.0
60.3
2.11
1.65
3.05
2.77
5.16
3.91
7.01
5.54
88.9
3’’
1’’
88.9
33.4
2.11
1.65
3.05
2.77
5.49
7.62
4.55
88.9
88.9
3’’
1 ¼’’
88.9
42.2
2.11
1.65
3.05
2.77
5.49
7.62
4.85
88.9
88.9
3’’
1 ½’’
88.9
48.3
2.11
1.65
3.05
2.77
5.49
7.62
5.08
88.9
88.9
3’’
2’’
88.9
60.3
2.11
1.65
3.05
2.77
5.49
7.62
5.54
88.9
88.9
3’’
2 ½’’
88.9
73.0
2.11
2.11
3.05
3.05
5.49
7.62
7.01
88.9
88.9
4’’
1 ½’’
114.3
48.3
2.11
1.65
3.05
2.77
6.02
8.56
5.08
101.6
101.6
4’’
2’’
114.3
60.3
2.11
1.65
3.05
2.77
6.02
8.56
5.54
101.6
101.6
4’’
2 ½’’
114.3
73.0
2.11
2.11
3.05
3.05
6.02
8.56
7.01
101.6
101.6
4’’
3’’
114.3
88.9
2.11
2.11
3.05
3.05
6.02
8.56
7.62
101.6
101.6
5’’
3’’
141.3
88.9
2.77
2.11
3.40
3.05
6.55
9.53
7.62
127.0
127.0
5’’
4’’
141.3
114.3
2.77
2.11
3.40
3.05
6.55
9.53
8.56
127.0
127.0
6’’
2 ½’’
168.3
73.0
2.77
2.11
3.40
3.05
7.11
10.97
7.01
139.7
139.7
6’’
3’’
168.3
88.9
2.77
2.11
3.40
3.05
7.11
10.97
7.62
139.7
139.7
6’’
4’’
168.3
114.3
2.77
2.11
3.40
3.05
7.11
10.97
8.56
139.7
139.7
6’’
5’’
168.3
141.3
2.77
2.77
3.40
3.40
7.11
10.97
9.53
139.7
139.7
8’’
4’’
219.1
114.3
2.77
2.11
3.76
3.05
8.18
12.7
8.56
152.4
152.4
8’’
5’’
219.1
141.3
2.77
2.77
3.76
3.40
8.18
12.7
9.53
152.4
152.4
8’’
6’’
219.1
168.3
2.77
2.77
3.76
3.40
8.18
12.7
10.97
152.4
152.4
10’’
5’’
273.1
141.3
2.77
2.77
4.19
3.40
9.27
12.7
9.53
177.8
177.8
10’’
6’’
273.1
168.3
3.40
2.77
4.19
3.40
9.27
12.7
10.97
177.8
177.8
10’’
8’’
273.1
219.1
3.40
2.77
4.19
3.76
9.27
12.7
12.7
177.8
177.8
12’’
6’’
323.9
168.3
3.40
2.77
4.57
3.40
9.53
12.7
10.97
203.2
203.2
12’’
8’’
323.9
219.1
3.96
2.77
4.57
3.76
9.53
12.7
12.7
203.2
203.2
12’’
10’’
323.9
273.1
3.96
3.40
4.57
4.19
9.53
12.7
12.7
203.2
203.2
14” – 48”
Outside Diameter 1
Outside Diameter 2
Thickness(mm)
Length H
(mm)
SCH 10S
SCH 20S
Std
XS
Inch
mm
Inch
mm
T1
T2
T1
T2
T1
T2
T1
T2
14’’
12’’
355.6
323.9
4.78
4.57
7.92
6.35
9.53
9.53
12.7
12.7
330.2
14’’
10’’
355.6
273.1
4.78
4.19
7.92
6.35
9.53
9.27
12.7
12.7
330.2
14’’
8’’
355.6
219.1
4.78
3.76
7.92
6.35
9.53
8.18
12.7
12.7
330.2
14’’
6’’
355.6
168.3
4.78
3.40
7.92
–
9.53
7.11
12.7
10.97
330.2
16’’
14’’
406.4
355.6
4.78
4.78
7.92
7.92
9.53
9.53
12.7
12.7
355.6
16’’
12’’
406.4
323.9
4.78
4.57
7.92
6.35
9.53
9.53
12.7
12.7
355.6
16’’
10’’
406.4
273.1
4.78
4.19
7.92
6.35
9.53
9.27
12.7
12.7
355.6
16’’
8’’
406.4
219.1
4.78
3.76
7.92
6.35
9.53
8.18
12.7
12.7
355.6
18’’
16’’
457.2
406.4
4.78
4.78
7.92
7.92
9.53
9.53
12.7
12.7
381.0
18’’
14’’
457.2
355.6
4.78
4.78
7.92
7.92
9.53
9.53
12.7
12.7
381.0
18’’
12’’
457.2
323.9
4.78
4.57
7.92
6.35
9.53
9.53
12.7
12.7
381.0
18’’
10’’
457.2
273.1
4.78
4.19
7.92
6.35
9.53
9.27
12.7
12.7
381.0
20’’
18’’
508
457.2
5.54
4.78
9.53
7.92
9.53
9.53
12.7
12.7
508.0
20’’
16’’
508
406.4
5.54
4.78
9.53
7.92
9.53
9.53
12.7
12.7
508.0
20’’
14’’
508
355.6
5.54
4.78
9.53
7.92
9.53
9.53
12.7
12.7
508.0
20’’
12’’
508
323.9
5.54
4.57
9.53
6.35
9.53
9.53
12.7
12.7
508.0
22’’
20’’
558.8
508
5.54
5.54
9.53
9.53
9.53
9.53
12.7
12.7
508.0
22’’
18’’
558.8
457.2
5.54
4.78
9.53
7.92
9.53
9.53
12.7
12.7
508.0
22’’
16’’
558.8
406.4
5.54
4.78
9.53
7.92
9.53
9.53
12.7
12.7
508.0
22’’
14’’
558.8
355.6
5.54
4.78
9.53
7.92
9.53
9.53
12.7
12.7
508.0
24’’
22’’
609.6
558.8
6.35
5.54
9.53
9.53
9.53
9.53
12.7
12.7
508.0
24’’
20’’
609.6
508
6.35
5.54
9.53
9.53
9.53
9.53
12.7
12.7
508.0
24’’
18’’
609.6
457.2
6.35
4.78
9.53
7.92
9.53
9.53
12.7
12.7
508.0
24’’
16’’
609.6
406.4
6.35
4.78
9.53
7.92
9.53
9.53
12.7
12.7
508.0
24’’
14’’
609.6
355.6
6.35
4.78
9.53
7.92
9.53
9.53
12.7
12.7
508.0
26’’
24’’
660.4
609.6
12.7
9.53
9.53
9.53
12.7
12.7
609.6
26’’
20’’
660.4
508
12.7
9.53
9.53
9.53
12.7
12.7
609.6
26’’
18’’
660.4
457.2
12.7
7.92
9.53
9.53
12.7
12.7
609.6
26’’
16’’
660.4
406.4
12.7
7.92
9.53
9.53
12.7
12.7
609.6
28’’
26’’
711.2
660.4
12.7
12.7
9.53
9.53
12.7
12.7
609.6
28’’
24’’
711.2
609.6
12.7
9.53
9.53
9.53
12.7
12.7
609.6
28’’
20’’
711.2
508
12.7
9.53
9.53
9.53
12.7
12.7
609.6
28’’
18’’
711.2
457.2
12.7
7.92
9.53
9.53
12.7
12.7
609.6
30’’
28’’
762.0
711.2
12.7
12.7
9.53
9.53
12.7
12.7
609.6
30’’
26’’
762.0
660.4
12.7
12.7
9.53
9.53
12.7
12.7
609.6
30’’
24’’
762.0
609.6
12.7
9.53
9.53
9.53
12.7
12.7
609.6
30’’
20’’
762.0
508
12.7
9.53
9.53
9.53
12.7
12.7
609.6
32’’
30’’
812.8
762.0
12.7
12.7
9.53
9.53
12.7
12.7
609.6
32’’
28’’
812.8
711.2
12.7
12.7
9.53
9.53
12.7
12.7
609.6
32’’
26’’
812.8
660.4
12.7
12.7
9.53
9.53
12.7
12.7
609.6
32’’
24’’
812.8
609.6
12.7
9.53
9.53
9.53
12.7
12.7
609.6
34’’
863.6
32’’
812.8
12.7
12.7
9.53
9.53
12.7
12.7
609.6
34’’
863.6
30’’
762.0
12.7
12.7
9.53
9.53
12.7
12.7
609.6
34’’
863.6
28’’
711.2
12.7
12.7
9.53
9.53
12.7
12.7
609.6
34’’
863.6
26’’
660.4
12.7
12.7
9.53
9.53
12.7
12.7
609.6
36’’
914.4
34’’
863.6
12.7
12.7
9.53
9.53
12.7
12.7
609.6
36’’
914.4
32’’
812.8
12.7
12.7
9.53
9.53
12.7
12.7
609.6
36’’
914.4
30’’
762.0
12.7
12.7
9.53
9.53
12.7
12.7
609.6
36’’
914.4
28’’
711.2
12.7
12.7
9.53
9.53
12.7
12.7
609.6
38’’
965.2
36’’
914.4
9.53
9.53
12.7
12.7
609.6
38’’
965.2
34’’
863.6
9.53
9.53
12.7
12.7
609.6
38’’
965.2
32’’
812.8
9.53
9.53
12.7
12.7
609.6
38’’
965.2
30’’
762.0
9.53
9.53
12.7
12.7
609.6
38’’
965.2
28’’
711.2
9.53
9.53
12.7
12.7
609.6
38’’
965.2
26’’
660.4
9.53
9.53
12.7
12.7
609.6
40’’
1016
38’’
965.2
9.53
9.53
12.7
12.7
609.6
40’’
1016
36’’
914.4
9.53
9.53
12.7
12.7
609.6
40’’
1016
34’’
863.6
9.53
9.53
12.7
12.7
609.6
40’’
1016
32’’
812.8
9.53
9.53
12.7
12.7
609.6
40’’
1016
30’’
762.0
9.53
9.53
12.7
12.7
609.6
42’’
1066.8
40’’
1016
12.7
9.53
9.53
9.53
12.7
12.7
609.6
42’’
1066.8
38’’
965.2
12.7
9.53
9.53
9.53
12.7
12.7
609.6
42’’
1066.8
36’’
914.4
12.7
12.7
9.53
9.53
12.7
12.7
609.6
42’’
1066.8
34’’
863.6
12.7
12.7
9.53
9.53
12.7
12.7
609.6
42’’
1066.8
32’’
812.8
9.53
9.53
12.7
12.7
609.6
42’’
1066.8
30’’
762.0
9.53
9.53
12.7
12.7
609.6
44’’
1117.6
42’’
1066.8
9.53
9.53
12.7
12.7
609.6
44’’
1117.6
40’’
1016
9.53
9.53
12.7
12.7
609.6
44’’
1117.6
38’’
965.2
9.53
9.53
12.7
12.7
609.6
44’’
1117.6
36’’
914.4
9.53
9.53
12.7
12.7
609.6
46’’
1168.4
44’’
1117.6
9.53
9.53
12.7
12.7
711.2
46’’
1168.4
42’’
1066.8
9.53
9.53
12.7
12.7
711.2
46’’
1168.4
40’’
1016
9.53
9.53
12.7
12.7
711.2
46’’
1168.4
38’’
965.2
9.53
9.53
12.7
12.7
711.2
46’’
1168.4
36’’
914.4
9.53
9.53
12.7
12.7
711.2
48’’
1219.2
44’’
1117.6
9.53
9.53
12.7
12.7
711.2
48’’
1219.2
42’’
1066.8
9.53
9.53
12.7
12.7
711.2
48’’
1219.2
40’’
1016
9.53
9.53
12.7
12.7
711.2
FAQs
1. What manufacturing methods (seamless vs. welded construction) and schedule wall thicknesses are available?
We manufacture seamless eccentric reducers using precision cold or hot die-forming from seamless stainless steel pipe for high-pressure systems. For larger pipe sizes, we produce plate-formed welded reducers featuring 100% full-penetration longitudinal welds. Wall thicknesses cover complete ASME schedules from Schedule 10S and 40S to extra-heavy Schedule 160 and XXS in dual-certified ASTM A403 WP304/304L and WP316/316L material grades.
2. How do you verify wall thickness, flat-side alignment, and bevel ends during quality control?
Due to the asymmetrical geometry of eccentric reducers, our QC team performs multi-point ultrasonic wall thickness testing along both the flat edge and the tapered zone to ensure strict compliance with ASME B16.9 minimum wall thickness requirements. We also perform 100% Positive Material Identification (PMI), dimensional checks on offset alignment, and bevel end inspection. All orders are heat-treated (solution annealed) and supplied with EN 10204 3.1 Material Test Reports (MTRs).
3. What are your factory lead times and minimum order quantities (MOQs) for export shipments?
Standard manufacturing lead time is 30 to 45 days after order confirmation and technical drawing approval. We offer flexible MOQs for standard sizes and schedules, allowing international buyers to consolidate concentric reducers, eccentric reducers, elbows, and tees into a single container order to reduce overall shipping costs.
4. How are eccentric reducers packaged to ensure protection during long-distance ocean shipping?
All bevel ends are fitted with protective plastic end caps to prevent edge deformation. Smaller reducers are packed in ISPM-15 heat-treated seaworthy wooden cases lined with waterproof plastic film. Large-diameter reducers are secured into heavy-duty wooden bundles or strapped onto pallets with cardboard cushioning to prevent surface scratches and metal-to-metal rubbing during sea transit.
5. What commercial delivery terms and global logistics options do you support?
A: We accommodate standard international commercial trade terms including EXW, FOB (Taiwan/China ports), CFR, CIF, and DDP. Cargo can be dispatched as Full Container Load (FCL) or Less than Container Load (LCL) via ocean freight, with expedited air freight available for critical maintenance shutdowns or urgent engineering timelines.
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