Valve actuator
Motor for nuclear power (in a containment vessel)
Specifications
| Item | Outside a nuclear containment vessel | Inside a BWR nuclear containment vessel | |
|---|---|---|---|
| Motor | Heat resistance class | Class B and H | Radiation resistance class H |
| Lead wire (type) | Class B and H: 600V LKGB electric wire |
600 V LKGB electric wire (Covered with glass tube) |
|
| Motor oil seal | Class B: NBR Class H: Silicon |
Viton | |
| Bearing grease | Class B: Multemp SRL (Kyodo Yushi) Class H: SH44M (DuPont Toray Specialty Materials K.K.) |
Nucleol G130 (Castrol) |
|