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11
Vol. 1.2 © 2020 Hanbell Precise Machinery Co., Ltd.
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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
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