ANSI/ASME B16.9 Buttweld Reducers Dimensions
Nominal Pipe Size(NPS) >mm Outside Diameter OD mm Length L mm Mass (approx.) SGP – kg   Nominal Pipe Size mm   Outside Diameter OD mm Length L mm   Mass (approx.) SGP – kg
40 x 25 48.6 x 34.0 63.5  0.209   200 x 125  219.1 x 139.8  152.4  3.87 
40 x 20 48.6 x 27.2 63.5  0.191   200 x 100  219.1 x 114.3  152.4  3.67 
50 x 40 60.5 x 48.6 76.2  0.364   200 x 90  219.1 x 101.6  152.4  3.57 
50 x 32 60.5 x 42.7 76.2  0.344   250 x 200  273.0 x 219.1  177.8  6.87 
50 x 25 60.5 x 34.0 76.2  0.315   250 x 150  273.0 x 165.2  177.8  6.32 
50 x 20 60.5 x 27.2 76.2  0.293   250 x 150  273.0 x 139.8  177.8  6.06 
65 x 50 76.3 x 60.5 88.9  0.594   300 x 250  323.8 x 273.0  203.2  9.97 
65 x 40 76.3 x 48.6 88.9  0.543   300 x 200  232.8 x 219.1  203.2  9.29 
65 x 32 76.3 x 42.7 88.9  0.518   300 x 150  323.8 x 165.2  203.2  8.69 
65 x 25 76.3 x 34.0 88.9  0.482   300 x 125  323.8 x 139.8 203.2  8.39 
80 x 65 89.1 x 76.3 88.9  0.725   350 x 300  355.6 x 323.8   330.2  21.20 
80 x 50 89.1 x 60.5 88.9  0.658   350 x 250   355.6 x 273.0 330.2  19.70 
80 x 40 89.1 x 48.6 88.9  0.611   350 x 200  355.6 x 219.1  330.2  18.30 
80 x 32 89.1 x 42.7 88.9  0.587   400 x 350   406.4 x 355.6 355.6  20.90 
90 x 80 101.6 x 89.1 101.6 0.961   400 x 300 406.4 x 323.8 355.6 19.80
90 x 65 101.6 x 76.3 101.6 0.899   400 x 250 406.4 x 273.0 355.6 18.20
90 x 50 101.6 x 60.5 101.6 0.826   450 x 400 457.2 x 406.4 381.0 26.30
90 x 40 101.6 x 48.6 101.6 0.771   450 x 350 457.2 x 355.6 381.0 24.50
100 x 90 114.3 x 101.6 101.6 1.170   450 x 300 457.2 x 323.8 381.0 23.30
100 x 80 114.3 x 89.1 101.6 1.100   500 x 450 508.0 x 457.2 508.0 40.00
100 x 65 114.3 x 76.3 101.6  1.040   500 x 400  508.0 x 406.4  508.0 37.60 
100 x 50 114.3 x 60.5 101.6 0.967   500 x 350 508.0 x 355.6 508.0 35.30
125 x 100 139.8 x 114.3 127.0 1.740   600 x 500 609.6 x 508.0 508.0
125 x 90 139.8 x 101.6 127.0 1.650   600 x 450 609.6 x 457.2 508.0
125 x 80 139.8 x 89.1 127.0 1.580        
20 x 15 27.2 x 21.7  38.1 0.057   125 x 65   139.8 x 76.3 127.0  1.50 
25 x 20 34.0 x 27.2 50.8  0.110   150 x 125  165.2 x 139.8  139.7  2.55 
25 x 15 34.0 x 21.7 50.8  0.100   150 x 100  165.2 x 114.3  139.7  2.36 
32 x 25 42.7 34.0 50.8  0.154   150 x 90  165.2 x 101.6  139.7  2.27 
32 x 20 42.7 x 27.2 50.8  0.140   150 x 80  165.2 x 89.1  139.7  2.18 
32 x 15 42.7 x 21.7 50.8  0.129   150 x 65  165.2 x 76.3  139.7  2.09 
40 x 32 48.6 x 42.7 63.5  0.232   200 x 150  219.1 x 165.2  152.4  4.17