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10
Vol. 1.2 © 2020 Hanbell Precise Machinery Co., Ltd.
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2.5.2 Butterfly valve
For easy maintenance, the butterfly valve can be installed in condenser inlet and liquid line before
expansion valve. When installing butterfly valve, the pipe must also be enlarged one size to effectively
reduce the pressure drop.
Butterfly valve
size
A B C D E F G H J K L
2 1/2〞
65mm 121 48 58 97 162 111 16 11 32 64 20
3〞
80mm 133 48 73 104 168 111 16 11 32 64 20
4〞
100mm 171 52 94 120 191 111 16 11 32 64 19
5〞
125mm 191 57 122 129 191 130 19 13 32 114
24
6〞
150mm 219 57 149 141 203 130 19 13 32 114
24
8〞
200mm 273 61 198 176 241 130 22 16 32 114
24
10〞
250mm 332 70 248 217 273 155 30 22 51 114
27
Remark
※Dimension C is minima size when the valve opened totally unit：mm
※Operation Temp.：-29℃~260℃；Operation Pressure：1480psi
※Material- ASTAM351 GR CF8M stainless steel. Pressure level: ASME 150
※The butterfly valve is of wafer plate valves. Use ANSI 150 standard flange
Table 2.3 Flange size
Figure 2.6 Outline of butterfly size
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