Dimensions of Reducing Tees and Reducing Crosses - ASME B16.9
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NPS
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OD at Bevel
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Center to End
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Run
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Outlet
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Run, C
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Outlet, M
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1/2 x 3/8
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21.3
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17.3
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25
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25
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1/2 x 1/4
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13.7
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25
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3/4 x 1/2
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26.7
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21.3
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29
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29
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3/4 x 3/8
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17.3
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29
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1 x 3/4
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33.4
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26.7
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38
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38
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1 x 1/2
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21.3
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38
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1-1/4 x 1
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42.2
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33.4
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48
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48
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1-1/4 x 3/4
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26.7
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48
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1-1/4 x 1/2
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21.3
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48
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1-1/2 x 1-1/4
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48.3
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42.2
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57
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57
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1-1/2 x 1
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33.4
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57
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1-1/2 x 3/4
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26.7
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57
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1-1/2 x 1/2
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21.3
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57
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2 x 1-1/2
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60.3
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48.3
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64
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60
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2 x 1-1/4
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42.2
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57
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2 x 1
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33.4
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51
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2 x 3/4
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26.7
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44
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2-1/2 x 2
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73
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60.3
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76
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70
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2-1/2 x 1-1/2
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48.3
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67
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2-1/2 x1-1/4
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42.2
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64
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2-1/2 x 1
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33.4
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57
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3 x 2-1/2
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88.9
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73
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86
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83
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3 x 2
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60.3
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76
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3 x 1-1/2
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48.3
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73
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3 x 1-1/4
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42.2
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70
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3-1/2 x 3
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101.6
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88.9
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95
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92
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3-1/2 x 2-1/2
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73
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89
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3-1/2 x 2
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60.3
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83
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3-1/2 x 1-1/2
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48.3
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79
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4 x 3-1/2
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114.3
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101.6
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105
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102
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4 x 3
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88.9
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98
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4 x 2-1/2
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73
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95
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4 x 2
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60.3
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89
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4 x 1-1/2
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48.3
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86
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5 x 4
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141.3
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114.3
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124
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117
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5 x 3-1/2
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101.6
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114
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5 x 3
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88.9
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111
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5 x 2-1/2
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73
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108
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5 x 2
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60.3
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105
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6 x 5
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168.3
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141.3
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143
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137
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6 x 4
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114.3
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130
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6 x 3-1/2
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101.6
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127
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6 x 3
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88.9
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124
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6 x 2-1/2
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73
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121
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8 x 6
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219.1
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168.3
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178
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168
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8 x 5
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141.3
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162
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8 x 4
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114.3
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156
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8 x 3-1/2
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101.6
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152
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10 x 8
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273
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219.1
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216
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203
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10 x 6
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168.3
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194
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10 x 5
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141.3
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191
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10 x 4
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114.3
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184
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12 x 10
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323.8
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273
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254
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241
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12 x 8
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219.1
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229
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12 x 12 x 6
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168.3
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219
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12 x 5
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141.3
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216
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14 x 12
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355.6
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323.8
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279
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270
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14 x 10
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273
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257
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14 x 8
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219.1
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248
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14 x 6
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168.3
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238
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16 x 14
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406.4
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355.6
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305
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305
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16 x 12
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323.8
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295
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16 x 10
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273
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283
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16 x 8
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219.1
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273
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16 x 6
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168.3
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264
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18 x 16
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457
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406.4
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343
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330
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18 x 14
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355.6
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330
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18 x 12
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323.8
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321
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18 x 10
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273
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308
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18 x 8
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219.1
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298
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20 x 18
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508
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457
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381
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368
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20 x 16
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406.4
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356
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20 x 14
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355.6
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356
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20 x 12
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323.8
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346
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20 x 10
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273
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333
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20 x 8
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219.1
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324
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22 x 20
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559
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508
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419
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406
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22 x 18
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457
|
394
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22 x 16
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406.4
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381
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22 x 14
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355.6
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381
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22 x 12
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323.8
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371
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22 x 10
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272
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359
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24 x 22
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610
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559
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432
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432
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24 x 20
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508
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432
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24 x 18
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457
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419
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24 x 16
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406.4
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406
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24 x 14
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355.6
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406
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24 x 12
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323.8
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397
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24 x 10
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273
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384
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26 x 24
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660
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610
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495
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483
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26 x 22
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559
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470
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26 x 20
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508
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457
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26 x18
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457
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444
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26 x 16
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406.4
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432
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26 x 14
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355.6
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432
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26 x 12
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323.8
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422
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28 x 26
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711
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660
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521
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521
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28 x 24
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610
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508
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28 x 22
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559
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495
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28 x 20
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508
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483
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28 x 18
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457
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470
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28 x 16
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406.4
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457
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28 x 14
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355.6
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457
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28 x 12
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323.8
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448
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30 x 28
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762
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711
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559
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546
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30 x 26
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660
|
546
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30 x 24
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610
|
533
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30 x 22
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559
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521
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30 x 20
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508
|
508
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30 x 18
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457
|
495
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30 x 16
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406.4
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483
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30 x 14
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355.6
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483
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30 x 12
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323.8
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473
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30 x 10
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273
|
460
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32 x 30
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813
|
762
|
597
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584
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32 x 28
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711
|
572
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32 x 26
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660
|
572
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32 x 24
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610
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559
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32 x 22
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559
|
546
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32 x 20
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508
|
533
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32 x 18
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457
|
521
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32 x 16
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406.4
|
508
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32 x 14
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355.6
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508
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34 x 32
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864
|
813
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635
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622
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34 x 30
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762
|
610
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34 x 28
|
711
|
597
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34 x 26
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660
|
597
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34 x 24
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610
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584
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34 x 22
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559
|
572
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34 x 20
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508
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559
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34 x 18
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457
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546
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34 x 16
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406.4
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533
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36 x 34
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914
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864
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673
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660
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36 x 32
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813
|
648
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36 x 30
|
762
|
635
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36 x 28
|
711
|
622
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36 x 26
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660
|
622
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36 x 24
|
610
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610
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36 x 22
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559
|
597
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36 x 20
|
508
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584
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36 x 18
|
457
|
572
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36 x 16
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406.4
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559
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38 x 36
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965
|
914
|
711
|
711
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|
38 x 34
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864
|
698
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38 x 32
|
813
|
686
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38 x 30
|
762
|
673
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38 x 28
|
711
|
648
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38 x 26
|
660
|
648
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|
38 x 24
|
610
|
635
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|
38 x 22
|
559
|
622
|
|
38 x 20
|
508
|
610
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|
38 x 18
|
457
|
597
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40 x 38
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1016
|
965
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749
|
749
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|
40 x 36
|
914
|
737
|
|
40 x 34
|
864
|
724
|
|
40 x 32
|
813
|
711
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|
40 x 30
|
762
|
698
|
|
40 x 28
|
711
|
673
|
|
40 x 26
|
660
|
673
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|
40 x 24
|
610
|
660
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|
40 x 22
|
559
|
648
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|
40 x 20
|
508
|
635
|
|
40 x 18
|
457
|
622
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|
42 x 40
|
1067
|
1016
|
762
|
711
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|
42 x 38
|
968
|
711
|
|
42 x 36
|
914
|
711
|
|
42 x 34
|
864
|
711
|
|
42 x 32
|
813
|
711
|
|
42 x 30
|
762
|
711
|
|
42 x 28
|
711
|
698
|
|
42 x 26
|
60
|
698
|
|
42 x 24
|
610
|
660
|
|
42 x 22
|
559
|
660
|
|
42 x 20
|
508
|
660
|
|
42 x 18
|
457
|
648
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|
42 x 16
|
406.4
|
635
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|
44 x 42
|
1118
|
1067
|
813
|
762
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|
44 x 40
|
1016
|
749
|
|
44 x 38
|
965
|
737
|
|
44 x 36
|
914
|
724
|
|
44 x 34
|
864
|
724
|
|
44 x 32
|
813
|
711
|
|
44 x 30
|
762
|
711
|
|
44 x 28
|
711
|
698
|
|
44 x 26
|
660
|
698
|
|
44 x 24
|
610
|
698
|
|
44 x 22
|
559
|
686
|
|
44 x 20
|
508
|
686
|
|
46 x 44
|
1168
|
1118
|
851
|
800
|
|
46 x 42
|
1067
|
787
|
|
46 x 40
|
1016
|
775
|
|
46 x 38
|
965
|
762
|
|
46 x 36
|
914
|
762
|
|
46 x 34
|
864
|
749
|
|
46 x 32
|
813
|
949
|
|
46 x 30
|
762
|
737
|
|
46 x 28
|
711
|
737
|
|
46 x 26
|
660
|
737
|
|
46 x 24
|
610
|
724
|
|
46 x 22
|
559
|
724
|
|
48 x 46
|
1219
|
1168
|
889
|
838
|
|
48 x 44
|
1118
|
838
|
|
48 x 42
|
1067
|
813
|
|
48 x 40
|
1016
|
813
|
|
48 x 38
|
965
|
813
|
|
48 x 36
|
914
|
787
|
|
48 x 34
|
864
|
787
|
|
48 x 32
|
813
|
787
|
|
48 x 30
|
762
|
762
|
|
48 x 28
|
711
|
762
|
|
48 x 26
|
660
|
762
|
|
48 x 24
|
610
|
737
|
|
48 x 22
|
559
|
737
|
Note:
Outlet dimension M for run sizes NPS 14 and larger is recommended but not required.
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