[文件標題]
[日期]
11
Vol. 1.2 © 2020 Hanbell Precise Machinery Co., Ltd.
All rights reserved
2.5.3 Check valve
To avoid the reverse rotation caused by emergency shutdown and protect active magnetic bearing
(AMB), under high-speed compressing, installation of a check valve installed in the discharge side is
necessary.
Size
A(mm)
B(mm)
C(mm)
E(mm)
6
〞
150mm
222.2
120.7
95.3
70
8
〞
200mm
279.4
163.5
116.7
74.6
Remark
※
Operating temp.
:
-260
℃
~810
℃
Hydraulic pressure testing: 31.6kg/cm
2
(API-598)
※
Material - ASTAM351 GR CF8M stainless steel. Pressure level : ASME 150
※
The check valve is of wafer plate valve. Use ANSI 150 standard flange
Table 2.4 Check valve size
No.
Name
Material
1
Valve
CF8M
2
Disc shield
A351- CF8M
3
Spring
SUS316
4
Alignment pin
SUS316
5
Bearing
PTFE
6
Bolt
SUS316
7
O ring
PTFE
8
Eye ring
A105
Figure 2.7 Pendulum check valve outline