Koei
Koei Electric Actuators
Precision Automation for Demanding Marine Environments
In marine applications where reliability and resilience are critical, Koei Electric Actuators are the preferred choice for automated valve control. Built to perform in harsh, high-humidity, and salt-laden environments, Koei actuators are engineered with marine conditions in mind — delivering consistent performance across shipboard systems, offshore platforms, and marine processing plants.
Manufactured in Japan and backed by decades of proven field performance, Koei actuators are trusted globally for their robustness, ease of operation, and intelligent design.
Built for the Marine Sector
Koei actuators are designed to meet the unique challenges of maritime environments with the following key features:
- IP68 Weatherproof Enclosure: Offering full protection against water ingress, making them suitable for exposed deck or engine room installations.
- Wide Temperature Range (-25°C to +55°C): Perfect for arctic and tropical operations alike, without loss of performance.
- Manual Override as Standard: Ensuring operability even in the event of power failure — essential for mission-critical marine systems.
- Stove Enamel Finish: Durable surface coating to resist corrosion and UV exposure in marine climates.
Engineered for Seamless Integration
- Smooth, Precise Operation: Ideal for both on/off and modulating duties, with options for multi-turn, quarter-turn, and linear motion.
- High Torque Output: Designed to automate heavy-duty valves such as gate, globe, and butterfly valves with ease.
- Simple Electrical Connections: Plug-and-play terminal layout for quick installation and maintenance.
- Marine Compliance: Built in line with global marine standards and designed for integration into DCS or PLC systems.
Supplied by Actuation Valve – Your UK Marine Automation Partner
As a UK stockist of Koei Electric Actuators, Actuation Valve offers fast dispatch, expert product advice, and complete automation solutions tailored to marine requirements. Whether retrofitting existing manual valves or designing a new build from scratch, our team can help specify the perfect actuator setup — including gearboxes, switchboxes, and drive shaft couplings.
All actuator-valve packages are fully tested in-house to ensure plug-and-play installation and reliable long-term service.
Marine Applications Include:
- Seawater Intake Isolation
- Fuel Oil Transfer Lines
- Ballast Control Systems
- Fire-Fighting Water Loops
- Engine Room Valves
- HVAC and Ducting Dampers
- Water Treatment and Scrubber Systems
When Control Matters, Trust Koei
Marine-grade. Manually operable. Built to last.
Koei Electric Actuators are engineered for the real-world demands of marine operations — supported by Actuation Valve’s 25+ years of experience in flow control and automation.
Let us help you configure a complete electric actuation package that performs under pressure.