[文件標題]
[日期]
10
Vol. 1.2 © 2020 Hanbell Precise Machinery Co., Ltd.
All rights reserved
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