ASME B16.9 Reducer
Check ASME B16.9 Stainless Steel Concentric Reducer Dimensions And Weight Chart, ISO Approved Concentric Reducer Manufacturer In India.

What Is A Concentric Reducer For Pipe?
Carbon Steel Concentric Reducer Dimensions based on the needs of the application, the connecting pipe, the material, standards and pressure classes. The Asme B16.9 Reducer belongs to a standard of pipe fittings that range from NPS ½ to NPS 48. The Asme B16.9 Reducer Dimensions differ in due to their shape greatly than the Asme B16 9 Eccentric Reducer Dimensions due to the cone shaped reduction in the Asme B16 9 Concentric Reducers. The eccentric reducers have one side of the reducer aligned with the pipe’s length where other side is reduced from the supplying pipe to the receiving pipe. The Carbon Steel Concentric Reducer Asme B16.9 Dimensions do not differ in that way.

Carbon Steel Concentric Reducer

Stainless Steel Concentric Reducer

ASME B16.9 Reducer
Table of contents
- What Is The Difference Between Concentric And Eccentric Reducer?
- Why Concentric Reducer Used In Pump Suction?
- Concentric Reducer Length Formula
- Carbon Steel Concentric Reducer Price List In India
- Con Reducer Specification List
- ASME B16.9 Reducer Dimensions
- Stainless Steel Concentric Reducer Dimensions In Inches
- Buttweld Concentric Reducer Weight Calculation Formula
- Schedule 80 Pipe Reducer Tolerances
- SS Reducer Size Chart
- MSS SP 44 Concentric Reducer Wall Thickness Chart
- Most Selling Types Of ASME B16.9 Reducer
What Is The Difference Between Concentric And Eccentric Reducer?
The Stainless Steel Concentric Reducer B16.9 is stronger and is used in many applications where the nominal pipe size is less than 48 inches. There are different materials used to produce the reducer and there are different types as well.
The SS Eccentric Reducer is affordable and could be used in low cost applications. The applications include the water supply lines, domestic piping, sea water desalinization plants, waste water management facilities and other low cost applications.
Why Concentric Reducer Used In Pump Suction?
The main categories are type A and type B. The Concentric Reducer Type B has a full load factor where the type A has a reduced load factor. The Ansi B 16.9 Concentric Reducer is used in high pressure applications where the pressure has to be tolerated and the load is often full. The latest standards such as Concentric Reducer En 10253 2 cover the buttweld concentric reducer properties and quality. Any piping that has a need for high pressure full load reduction can use the Concentric Reducer Fitting. Rajtilak Metal is one of the leading Concentric Reducer Manufacturers in India.
Concentric Reducer Length Formula

Refer Schedule 80 / Sch 120 Carbon Steel Concentric Reducer Specification And Price List.
Carbon Steel Concentric Reducer Price List In India
Type | Size | Units | Weight | Price In India |
---|---|---|---|---|
Concentric Reducer | DT 3/4" x 1/2" |
1 |
0.04 |
230.99 |
Concentric Reducer | DT 1" x 1/2" |
1 |
0.08 |
261.06 |
Concentric Reducer | DT 1" x 3/4" |
1 |
0.09 |
261.06 |
Concentric Reducer | DT 1 1/4" x 3/4" |
1 |
0.1 |
307.26 |
Concentric Reducer | DT 1 1/4" x 1" |
1 |
0.11 |
307.26 |
Concentric Reducer | DT 1 1/2" x 3/4" |
1 |
0.15 |
353.46 |
Concentric Reducer | DT 1 1/2" x 1" |
1 |
0.16 |
383.46 |
Concentric Reducer | DT 1 1/2" x 1 1/4" |
1 |
0.17 |
393.46 |
Concentric Reducer | DT 2" x 3/4" |
1 |
0.2 |
415.06 |
Concentric Reducer | DT 2" x 1" |
1 |
0.22 |
475.06 |
Concentric Reducer | DT 2" x 1 1/4" |
1 |
0.24 |
495.06 |
Concentric Reducer | DT 2" x 1 1/2" |
1 |
0.26 |
510.06 |
Concentric Reducer | DT 2 1/2" x 1" |
1 |
0.35 |
538.25 |
Concentric Reducer | DT 2 1/2" x 1 1/4" |
1 |
0.38 |
568.25 |
Concentric Reducer | DT 2 1/2" x 1 1/2" |
1 |
0.4 |
588.25 |
Concentric Reducer | DT 3" x 1 1/2" |
1 |
0.45 |
584.45 |
Concentric Reducer | DT 4" x 2" |
1 |
0.64 |
768.51 |
Please note this is an approx Price of ASME B16.9 Reducer in India. For final carbon steel concentric reducer Price List Please Call on 91 - 22 - 67437342 or drop an Email to info@rajtilakmetal.com.

The axis is kept the same without an offset and therefore the fluid flow is directed through the same axis with only a reduction in volume and in a consistent way. The Carbon Steel Concentric Reducer Bw is strong through the buttwelding and is used to gradually increase pressure over the reduction.
EN 10253-2 Buttweld SS Reducer Size Chart, DIN 2616 Copper Concentric Reducers Wall Thickness Chart.
Con Reducer Specification List
Specification: | ASME B16.9 Concentric Reducer |
Standard | DIN, JIS, EN, ISO, NPT |
Size: | Normal Pipe Size (NPS) 1⁄₂ to Normal Pipe Size (NPS) 48” |
Materials: | Brass, Bronze, Copper, Iron (Ductile/Cast), Carbon Steel, Titanium, Chrome-molybdenum, Nickel Alloys, Tantalum, Stainless Steel, Cupro-Nickel 90/10 & 70/30, Nickel, Inconel, Monel, Hastalloy, Alloy Steel. |
Type | Elbow, Stub End, Bend, Tee, Reducer, Cap, Adapter, Wye, Cross, |
Thickness: | S10, S20, S30, 10S, S80, S100, S120, Sch 5S, 20S, STD, 40S, S40, S60, XS, 80S, S140, S160, XXS and etc. |
Schedule: | Schedule 5 TO Schedule XXS. |
Connection Type | Threaded/ Clamp End / End Bell / Weld/ Flange/ |
Pressure-Temperature Class | 150LB, 300LB, 600LB, 1500LB, 2500LB. |
Surface Coatings: | Epoxy Coated, Varnished, Galvanized, Black Painted. |
Type: | Butt Weld (BW), Seamless (SMLS) Welded |
Type Of Dimension: | DIN 2605, JIS B2312, ANSI B16.9, BS1640, EN 10253 - 4, MSS SP-75, ANSI B16.28, MSS-SP-43 Type A, MSS-SP-43 Type B, JIS B2313 |
ASME B16.9 Reducer Dimensions

Stainless Steel Concentric Reducer Dimensions In Inches
Code RCD REISO | Ø BIG | Ø SMALL | Hight H Millimeter | Theoretical Weight In Kilogram | ||||
---|---|---|---|---|---|---|---|---|
DN | D millimeter | Thickness S millimeter | DN | D millimeter | Thickness S millimeter | |||
27 21 | 3/4 | 26.9 | 2.3 | 1/2 | 21.3 | 2.0 | 38 | 0.08 |
33 21 | 1 | 33.7 | 2.6 | 1/2 | 21.3 | 2.0 | 50 | 0.09 |
33 27 | 3/4 | 26.9 | 2.3 | 0.09 | ||||
42 21 | 1"1/4 | 42.4 | 2.6 | 1/2 | 21.3 | 2.0 | 50 | 0.12 |
42 27 | 3/4 | 26.9 | 2.3 | 0.13 | ||||
42 33 | 1 | 33.7 | 2.6 | 0.14 | ||||
*48 21 | 1"1/2 | 48.3 | 2.6 | 1/2 | 21.3 | 2.0 | 64 | 0.18 |
48 27 | 3/4 | 26.9 | 2.3 | 0.19 | ||||
48 33 | 1 | 33.7 | 2.6 | 0.20 | ||||
48 42 | 1"1/4 | 42.4 | 2.6 | 0.20 | ||||
60 27 | 2 | 60.3 | 2.9 | 3/4 | 26.9 | 2.3 | 76 | 0.30 |
60 33 | 1 | 33.7 | 2.6 | 0.31 | ||||
60 42 | 1"1/4 | 42.4 | 2.6 | 0.32 | ||||
60 48 | 1"1/2 | 48.3 | 2.6 | 0.33 | ||||
76 33 | 2"1/2 | 76.1 | 2.9 | 1 | 33.7 | 2.6 | 90 | 0.40 |
76 42 | 1"1/4 | 42.4 | 2.6 | 0.47 | ||||
76 48 | 1"1/2 | 48.3 | 2.6 | 0.48 | ||||
76 60 | 2 | 60.3 | 2.6 | 0.49 | ||||
89 42 | 3 | 88.9 | 3.2 | 1"1/4 | 42.4 | 2.6 | 90 | 0.55 |
89 48 | 1"1/2 | 48.3 | 2.6 | 0.61 | ||||
89 60 | 2 | 60.3 | 2.9 | 0.62 | ||||
89 76 | 2"1/2 | 76.1 | 2.9 | 0.63 | ||||
114 48 | 4 | 114.3 | 3.6 | 1"1/2 | 48.3 | 2.6 | 100 | 0.85 |
114 60 | 2 | 60.3 | 2.9 | 0.98 | ||||
114 76 | 2"1/2 | 76.1 | 2.9 | 1.00 | ||||
114 89 | 3 | 88.9 | 3.2 | 1.02 | ||||
139 60 | 5 | 139.7 | 4.0 | 2 | 60.3 | 2.9 | 127 | 1.60 |
139 76 | 2"1/2 | 76.1 | 2.9 | 1.70 | ||||
139 89 | 3 | 88.9 | 3.2 | 1.74 | ||||
139 114 | 4 | 114.3 | 3.6 | 1.76 | ||||
*168 76 | 6 | 168.3 | 4.5 | 2"1/2 | 76.1 | 2.9 | 140 | 2.60 |
168 89 | 3 | 88.9 | 3.2 | 2.70 | ||||
168 114 | 4 | 114.3 | 3.6 | 2.82 | ||||
168 139 | 5 | 139.7 | 4.0 | 2.94 | ||||
219 114 | 8 | 219.1 | 6.3 | 4 | 114.3 | 3.6 | 152 | 5.03 |
219 139 | 5 | 139.7 | 4.0 | 5.12 | ||||
219 168 | 6 | 168.3 | 4.5 | 5.18 | ||||
*273 114 | 10 | 273.0 | 6.3 | 4 | 114.3 | 3.6 | 178 | 7.00 |
*273 139 | 5 | 139.7 | 4.0 | 7.20 | ||||
273 168 | 6 | 168.3 | 4.5 | 7.40 | ||||
273 219 | 8 | 219.1 | 6.3 | 7.55 | ||||
323 168 | 12 | 323.9 | 7.1 | 6 | 168.3 | 4.5 | 203 | 11.00 |
323 219 | 8 | 219.1 | 6.3 | 11.10 | ||||
323 273 | 10 | 273 | 6.3 | 11.20 |
Fast Delivery On ASME B16.9 Reducer In Mumbai, India, View SS 304 Reducers Surface Area Formula.
Buttweld Concentric Reducer Weight Calculation Formula
Normal Pipe Sizes | LBS | Weight In Kilogram |
3/4-1/2 | 0.17 | 0.08 |
3/4-3/8 | 0.15 | 0.07 |
1-3/4 | 0.4 | 0.18 |
1-1/2 | 0.4 | 0.18 |
1.1/4-1 | 0.5 | 0.23 |
1.1/4-3/4 | 0.4 | 0.18 |
1.1/4-1/2 | 0.4 | 0.18 |
1.1/2-1.1/4 | 0.7 | 0.32 |
1.1/2-1 | 0.62 | 0.28 |
1.1/2-3/4 | 0.54 | 0.24 |
1.1/2-1/2 | 0.5 | 0.23 |
2-1.1/2 | 0.9 | 0.41 |
2-1.1/4 | 0.84 | 0.38 |
2-1 | 0.76 | 0.34 |
2-3/4 | 0.7 | 0.32 |
2.1/2-2 | 1.5 | 0.68 |
2.1/2-1.1/2 | 1.38 | 0.63 |
2.1/2-1.1/4 | 1.25 | 0.57 |
2.1/2-1 | 1.25 | 0.57 |
3-2.1/2 | 2 | 0.91 |
3-2 | 1.8 | 0.82 |
3-1.1/2 | 1.7 | 0.77 |
3-1.1/4 | 1.6 | 0.73 |
3.1/2-3 | 3.15 | 1.43 |
3.1/2-2.1/2 | 2.88 | 1.31 |
3.1/2-2 | 2.75 | 1.25 |
3.1/2-1.1/2 | 2.5 | 1.13 |
3.1/2-1.1/4 | 2.4 | 1.09 |
4-3.1/2 | 3.5 | 1.59 |
4-3 | 3.38 | 1.53 |
4-2.1/2 | 3.25 | 1.47 |
4-2 | 3 | 1.36 |
4-1.1/2 | 2.88 | 1.31 |
5-4 | 6 | 2.72 |
5-3.1/2 | 5.75 | 2.61 |
5-3 | 5.5 | 2.49 |
5-2.1/2 | 5.25 | 2.38 |
5-2 | 5 | 2.27 |
6-5 | 8.5 | 3.86 |
6-4 | 8.25 | 3.74 |
6-3.1/2 | 8.25 | 3.74 |
6-3 | 8 | 3.63 |
6-2.1/2 | 7.25 | 3.29 |
8-6 | 13.2 | 5.99 |
8-5 | 12 | 5.44 |
8-4 | 11 | 4.99 |
8-3.1/2 | 11 | 4.99 |
10-8 | 22 | 9.98 |
10-6 | 21.5 | 9.75 |
10-5 | 21 | 9.53 |
10-4 | 20 | 9.07 |
12-10 | 34 | 15.42 |
12-8 | 32 | 14.51 |
12-6 | 31 | 14.06 |
12-5 | 30 | 13.61 |
14-12 | 60 | 27.22 |
14-10 | 59.2 | 26.85 |
14-8 | 58.5 | 26.54 |
14-6 | 58 | 26.31 |
16-14 | 71 | 32.21 |
16-12 | 70 | 31.75 |
16-10 | 69.5 | 31.52 |
16-8 | 68.5 | 31.07 |
16-6 | - | - |
18-16 | 85 | 38.56 |
18-14 | 84 | 38.1 |
18-12 | 83 | 37.65 |
18-10 | 82 | 37.19 |
18-8 | - | - |
20-18 | 125 | 56.7 |
20-16 | 124 | 56.25 |
20-14 | 122 | 55.34 |
20-12 | 120 | 54.43 |
20-10 | - | - |
20-8 | - | - |
22-20 | 142 | 64.41 |
22-18 | 138 | 62.6 |
22-16 | 131 | 59.42 |
22-14 | 123 | 55.79 |
22-12 | - | - |
22-10 | - | - |
24-22 | - | - |
24-20 | 150 | 68.04 |
24-18 | 148 | 67.13 |
24-16 | 145 | 65.77 |
24-14 | - | - |
24-12 | - | - |
24-10 | - | - |
26-24 | 207 | 93.89 |
26-22 | 200 | 90.72 |
26-20 | 190 | 86.18 |
26-18 | 182 | 82.55 |
26-16 | - | - |
26-14 | - | - |
26-12 | - | - |
28-26 | 224 | 101.6 |
28-24 | 216 | 97.98 |
28-22 | 210 | 95.25 |
28-20 | 199 | 90.26 |
30-28 | 241 | 109.32 |
30-26 | 232 | 105.23 |
30-24 | 224 | 101.6 |
30-22 | 220 | 99.79 |
30-20 | 220 | 99.79 |
NPS | LBS | KG |
Grooved / Aluminum / Sanitary / Copper / SS Seamless Concentric Reducer Supplier In Mumbai, India.
Schedule 80 Pipe Reducer Tolerances
(NPS) Nominal Pipe Size | 1/2 to 2.1/2 | 3 to 3.1/2 | 4 | 5 to 8 |
(O.D.) Outside Diameter at Bevel (D) |
+ 1.6 – 0.8 |
1.6 | 1.6 | + 2.4 – 1.6 |
(I.D.) Inside Diameter at End | 0.8 | 1.6 | 1.6 | 1.6 |
Overall Length (Hight) | 2 | 2 | 2 | 2 |
(NPS) Nominal Pipe Size | 10 to 18 | 20 to 24 | 26 to 30 | 32 to 48 |
(O.D.) Outside Diameter at Bevel (D) |
+ 4 – 3.2 |
+ 6.4 – 4.8 |
+ 6.4 – 4.8 |
+ 6.4 – 4.8 |
(I.D.) Inside Diameter at End | 3.2 | 4.8 | + 6.4 – 4.8 |
+ 6.4 – 4.8 |
Overall Length (H) | 2 | 2 | 5 | 5 |
Wall Thickness (t) | Not less than 87.5% Thickness Of Nominal Wall |
SS Reducer Size Chart

MSS SP 44 Concentric Reducer Wall Thickness Chart
Normal Pipe Size (NPS) | Number Of Pipe Schedule | Approx Weight | I.D. (Small) | Thickness Of Wall (Small) | O.D. (Large) | I.D. (Large) | Thickness Of Wall (Large) | O.D. (Small) | Length |
---|---|---|---|---|---|---|---|---|---|
12 x 4 | 40 | 35.8 | 4.026 | 0.237 | 12.75 | 11.938 | 0.406 | 4.5 | 8 |
16 x 6 | 40 | 96.5 | 6.06 | 0.28 | 16 | 15 | 0.5 | 6.62 | 14 |
18 x 8 | 40 | 131 | 7.976 | 0.322 | 18 | 16.876 | 0.562 | 8.62 | 15 |
20 x 10 | 40 | 205 | 10.02 | 0.365 | 20 | 18.812 | 0.594 | 10.75 | 20 |
20 x 8 | 40 | 205 | 7.976 | 0.322 | 20 | 18.812 | 0.594 | 8.62 | 20 |
24 x 10 | 40 | 285 | 10.02 | 0.365 | 24 | 22.624 | 0.688 | 10.75 | 20 |
24 x 12 | 40 | 285 | 11.938 | 0.406 | 24 | 22.624 | 0.688 | 12.75 | 20 |
24 x 14 | 40 | 285 | 13.124 | 0.438 | 24 | 22.624 | 0.688 | 14 | 20 |
12 x 10 | 40 | 35.8 | 10.02 | 0.365 | 12.75 | 11.938 | 0.406 | 10.75 | 8 |
12 x 5 | 40 | 35.8 | 5.044 | 0.258 | 12.75 | 11.938 | 0.406 | 5.56 | 8 |
12 x 6 | 40 | 35.8 | 6.06 | 0.28 | 12.75 | 11.938 | 0.406 | 6.62 | 8 |
12 x 8 | 40 | 35.8 | 7.976 | 0.322 | 12.75 | 11.938 | 0.406 | 8.62 | 8 |
14 x 10 | 40 | 68.6 | 10.02 | 0.365 | 14 | 13.124 | 0.438 | 10.75 | 13 |
14 x 12 | 40 | 68.6 | 11.938 | 0.406 | 14 | 13.124 | 0.438 | 12.75 | 13 |
14 x 6 | 40 | 68.6 | 6.06 | 0.28 | 14 | 13.124 | 0.438 | 6.62 | 13 |
14 x 8 | 40 | 68.6 | 7.976 | 0.322 | 14 | 13.124 | 0.438 | 8.62 | 13 |
16 x 10 | 40 | 96.5 | 10.02 | 0.365 | 16 | 15 | 0.5 | 10.75 | 14 |
16 x 12 | 40 | 96.5 | 11.938 | 0.406 | 16 | 15 | 0.5 | 12.75 | 14 |
16 x 14 | 40 | 96.5 | 13.124 | 0.438 | 16 | 15 | 0.5 | 14 | 14 |
16 x 8 | 40 | 96.5 | 7.976 | 0.322 | 16 | 15 | 0.5 | 8.62 | 14 |
18 x 10 | 40 | 131 | 10.02 | 0.365 | 18 | 16.876 | 0.562 | 10.75 | 15 |
18 x 12 | 40 | 131 | 11.938 | 0.406 | 18 | 16.876 | 0.562 | 12.75 | 15 |
18 x 14 | 40 | 131 | 13.124 | 0.438 | 18 | 16.876 | 0.562 | 14 | 15 |
18 x 16 | 40 | 131 | 15 | 0.5 | 18 | 16.876 | 0.562 | 16 | 15 |
20 x 12 | 40 | 205 | 11.938 | 0.406 | 20 | 18.812 | 0.594 | 12.75 | 20 |
20 x 14 | 40 | 205 | 13.124 | 0.438 | 20 | 18.812 | 0.594 | 14 | 20 |
20 x 16 | 40 | 205 | 15 | 0.5 | 20 | 18.812 | 0.594 | 16 | 20 |
20 x 18 | 40 | 205 | 16.876 | 0.562 | 20 | 18.812 | 0.594 | 18 | 20 |
24 x 16 | 40 | 285 | 15 | 0.5 | 24 | 22.624 | 0.688 | 16 | 20 |
24 x 18 | 40 | 285 | 16.876 | 0.562 | 24 | 22.624 | 0.688 | 18 | 20 |
24 x 20 | 40 | 285 | 18.812 | 0.594 | 24 | 22.624 | 0.688 | 20 | 20 |
Most Selling Types Of ASME B16.9 Reducer

SCH 80, 12 × 10 Inch, ANSI B16.9, A234 WP9, Con Reducer

Sch 80 Concentric Pipe Reducer Used For Chemical Industries

Bevelled End, 8 X 6 Inch, Con Swage Reducer

SCH.40, 6 X 4 inch, Stainless Steel Concentric Reducer

WPL6 LTCS, 2X1 Inch, Grooved Concentric Reducer

Size 6 x 4 Inch, Butt Weld Ends, Concentric Weld Reducer

Sch. XS, (BW) Ends, 8 X 6 inch, Concentric Weld Reducer

Size 6 X 2 Inch, WT 0.28 X 0.154 Inch, Sanitary Concentric Reducer

4 X 3 Inch, BW Ends, SCH 40, Black Coating, ASTM A234 WPB Carbon Steel Concentric Reducer

4 - 6 Inch, SCH40, ASME B16.9, Copper Concentric Reducer

16 ×10 Inch, BW Ends, Stainless Con Reducers

16 × 10 Inch, Butt Weld Ends, ASME B16 9 Concentric Reducers

12 x 8 Inch, BW Ends, 0.375x0.322 Inch, Concentric Reducers

S31803, SCH 60, 8 Inch × 6 Inch, Con Reducer En 10253 2

ASTM A403 WP321H, 8 x 4 Inch, SCH 120, Concentric Reducers Fittings
