NIPPON GEAR

NIPPON GEAR

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)
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