Spillway Gate Hoist : a high capacity fixed hoist mounted on an autonomous structure serving the spillway of a water retention construction adjacent or remote from a powerhouse.
The spillway gate hoist is dedicated to one gate and is permanently attached to it, thus operating in a cold and damp environment.
Reliable and efficient Spillway Gate Hoists
Spillway gate hoists are often operated remotely.
Spillway gate hoists require extreme reliability as their operation can be required in emergency situations. Spillway gate hoists should be designed to handle the extreme load conditions generated by motor stall torque in case of dynamic asymmetrical jamming of the gate in the embedded guides. Spillway gate hoists should also be able to allow the controlled descent of the gate in case of power failure.