Emerson has a new submersible electric actuator

Emerson today launched its EIM™ Aquanaught, a waterproof submersible electric actuator, designed to meet critical isolation demands on wastewater treatment plants during high water conditions. The actuator can be submerged and still operate under 45 m of dirty water for seven days, which is three times deeper and 40 percent longer than competing submersible technologies.
The Aquanaught, according to Emerson website, features a robust mechanical design with a waterproof enclosure and hermetically sealed connections that ensure uninterrupted plant operation during flooding conditions. Ideal for gate or valve isolation applications found in wastewater, water, collection systems, hydropower, flood control and desalination plants, the design allows these facilities to remain in control of their isolation needs from a safe remote location even if the actuator becomes submerged for extended periods of time. Waterproof sensors provide an additional level of protection by enabling early diagnostic and preventive maintenance during the flooding event.