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ASME B16.9 Reducer Dimensions

ASME B16.9 Reducer

Stainless Steel Concentric Reducer Specification

Standards Specification Of : ASME B16.9 Reducer
Schedule: Sch 5 TO Sch XXS.
Size: Wall Thickness – from 2 to 40 mm.
Diameters – from 21,3 to 711 mm.
Materials List: Nickel, Alloy Steel, Carbon Steel, Inconel, Monel, Hastalloy, Titanium, Tantalum, Stainless Steel, Cupro-Nickel 90/10 & 70/30
Type Of Fittings: Butt Weld (BW)
Thickness: Schedule 5S, 20S, S10, S20, S30, 10S, S80, S100, S120, STD, 40S, S40, S60, XS, 80S, S140, S160, XXS and etc.
Standards Dimension: ANSI B16.28, MSS-SP-43 Type A, JIS B2312, ANSI B16.9, MSS-SP-43 Type B, JIS B2313

Carbon Steel Eccentric Reducer Dimensions

RCD Reiso Code Ø BIG Ø SMALL Height H Millimeter Theoretical Weight Kilogram
DN D Millimeter Thick. S Millimeter DN d Millimeter Thick. 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

ASME B16.9 Reducer Weight Chart


NPS Diameter
O.D.
End to End
D1*D2
DN Normail Pipe Size Series A Series B H
20*15 3/4*1/2 26.9*21.3 25*18 38
20*10 3/4*3/8 26.9*17.3 25*14 38
25*20 1*3/4 33.7*26.9 32*25 51
25*15 1*1/2 33.7*21.3 32*18 51
32*25 1.1/4*1 42.4*33.7 38*32 51
32*20 1.1/4*3/4 42.4*26.9 38*25 51
32*15 1.1/4*1/2 42.4*21.3 38*18 51
40*32 1.1/2*1.1/4 48.3*42.4 45*38 64
40*25 1.1/2*1 48.3*33.7 45*32 64
40*20 1.1/2*3/4 48.3*26.9 45*25 64
40*15 1.1/2*1/2 48.3*21.3 45*18 64
50*40 2*1.1/2 60.3*48.3 57*45 76
50*32 2*1.1/4 60.3*42.4 57*38 76
50*25 2*1 60.3*33.7 57*32 76
50*20 2*3/4 60.3*26.9 57*25 76
65*50 2.1/2*2 73.0*60.3 76*57 89
65*40 2.1/2*1.1/2 73.0*48.3 76*45 89
65*32 2.1/2*1.1/4 73.0*42.4 76*38 89
65*25 2.1/2*1 73.0*33.7 76*32 89
80*65 3*2.1/2 88.9*73.0 89*76 89
80*50 3*2 88.9*60.3 89*57 89
80*40 3*1.1/2 88.9*48.3 89*45 89
80*32 3*1.1/4 88.9*42.4 89*38 89
90*80 3.1/2*3 101.6*88.9 - 102
90*65 3.1/2*2.1/2 101.6*73.0 - 102
90*50 3.1/2*2 101.6*60.3 - 102
90*40 3.1/2*1.1/2 101.6*48.3 - 102
90*32 3.1/2*1.1/4 101.6*42.4 - 102
100*90 4*3.1/2 114.3*101.6 - 102
100*80 4*3 114.3*88.9 108*89 102
100*65 4*2.1/2 114.3*73.0 108*76 102
100*50 4*2 114.3*60.3 108*57 102
100*40 4*1.1/2 114.3*48.3 108*45 102
125*100 5*4 141.3*114.3 133*108 127
125*90 5*3.1/2 141.3*101.6 - 127
125*80 5*3 141.3*88.9 133*89 127
125*65 5*2.1/2 141.3*73.0 133*76 127
125*50 5*2 141.3*60.3 133*57 127
150*125 6*5 168.3*141.3 159*133 140
150*100 6*5 168.3*114.3 159*108 140
150*90 6*3.1/2 168.3*101.6 - 140
150*80 6*3 168.3*88.9 159*89 140
150*65 6*2.1/2 168.3*73.0 159*76 140
200*150 8*6 219.1*168.3 219*159 152
200*125 8*5 219.1*141.3 219*133 152
200*100 8*4 219.1*114.3 219*108 152
200*90 8*3.1/2 219.1*101.6 - 152
250*200 10*8 273.0*219.1 273*219 178
250*150 10*6 273.0*168.3 273*159 178
250*125 10*5 273.0*141.3 273*133 178
250*100 10*4 273.0*114.3 273*108 178
300*250 12*10 323.9*273.1 325*273 203
300*200 12*8 323.9*219.1 325*219 203
300*150 12*6 323.9*168.3 325*159 203
300*125 12*5 323.9*141.3 325*133 203
350*300 14*12 355.6*323.9 377*325 330
350*250 14*10 355.6*273.0 377*273 330
350*200 14*8 355.6*219.1 377*219 330
350*150 14*6 355.6*168.3 377*159 330
400*350 16*14 406.4*355.6 426*377 356
400*300 16*12 406.4*323.9 426*325 356
400*250 16*10 406.4*273.0 426*273 356
400*200 16*8 406.4*219.1 426*219 356
450*400 18*16 457*406.4 478*426 381
450*350 18*14 457*355.6 478*377 381
450*300 18*12 457*323.9 478*325 381
450*250 18*10 457*273.0 478*273 381
500*450 20*18 508*457 529*478 508
500*400 20*16 508*406.4 529*426 508
500*350 20*14 508*355.6 529*377 508
500*300 20*12 508*323.9 529*325 508
550*500 22*20 559*508 - 508
550*450 22*18 559*457 - 508
550*400 22*16 559×406.4 - 508
550*350 22*14 559*355.6 - 508
600*550 24*22 610*559 - 508
600*500 24*20 610*508 630*529 508
600*450 24*18 610*457 630*478 508
600*400 24*22 610*406.4 630*426 508
650*600 26*24 660*610 - 610
650*550 26*22 660*559 - 610
650*500 26*20 660*508 - 610
650*450 26*18 660*457 - 610
700*650 28*26 711*660 - 610
700*600 28*24 711*610 720*630 610
700*550 28*22 711*559 - 610
700*500 28*20 711*508 720*530 610
750*700 30*28 762*711 - 610
750*650 30*26 762*660 - 610
750*600 30*24 762*610 - 610
750*550 30*22 762*559 - 610
800*750 32*30 813*762 - 610
800*700 32*28 813*711 820*720 610
800*650 32*26 813*660 - 610
800*600 32*24 813*610 820*630 610
850*800 34*32 864*813 - 610
850*750 34*30 864*762 - 610
850*700 34*28 864*711 - 610
850*650 34*26 864*660 - 610
900*850 36*34 914*864 - 610
900*800 36*32 914*813 920*820 610
900*750 36*30 914*762 - 610
900*700 36*28 914*711 920*720 610
950*900 38*36 965*914 - 610
950*850 38*34 965*864 - 610
950*800 38*32 965*813 - 610
950*750 38*30 965*762 - 610
1000*950 40*38 1016*965 - 610
1000*900 40*36 1016*914 1020*920 610
1000*850 40*34 1016*864 - 610
1000*800 40*32 1016*813 1020*820 610
1050*1000 42*40 1067*1016 - 610
1050*950 42*38 1067*965 - 610
1050*900 42*36 1067*914 - 610
1050*850 42*34 1067*864 - 610
1100*1050 44*42 1118*1067 - 610
1100*1000 44*40 1118*1016 1120*1020 610
1100*950 44*38 1118*965 - 610
1100*900 44*36 1118*914 1220*920 610
1150*1100 46*44 1168*1118 - 711
1150*1050 46*42 1168*1067 - 711
1150*1000 46*40 1168*1016 - 711
1150*950 46*38 1168*965 - 711
1200*1150 48*46 1220*1168 - 711
1200*1100 48*44 1220*1118 1220*1120 711
1200*1050 48*42 1220*1067 - 711
1200*1000 48*40 1220*1016 1220*1020 711


Buttweld Concentric Reducer Pressure Rating

Pressure-Temperature ratings for ASME B16.9 fittings (psig)
Temperature RatingsPressure Class
150300
1/4 - 1 inch.1 1/4 - 2 inch.2 1/2 - 3 inch.
(oF)(oC)
-20 to 150 -29 to 66 300 2000 1500 1000
200 93 265 1785 1350 910
250 121 225 1575 1200 825
300 149 185 1360 1050 735
350 177 150 1150 900 650
400 204 - 935 750 560
450 232 - 725 600 475
500 260 - 510 450 385
550 288 - 300 300 300