Rotork Actuator - Noah SR

Key Features

• Spring-return fail-safe actuator (moves to safe position on power loss: fail open / fail close)
• Available for quarter-turn valve applications (e.g., butterfly and ball valves)
• IP67 protection rating, with optional IP68 waterproof version
• Optional explosion-proof variants for hazardous areas
• Aluminium alloy housing, corrosion-resistant with polyester powder coating
• Built-in self-locking gear system to prevent reverse rotation
• Torque overload protection via motor thermal protection
• Integrated limit switches for precise open/close position control
• Internal heater to prevent condensation and moisture buildup
• Manual override (lockable handwheel or lever operation) for emergency use
• Speed controller for spring-return motion to reduce shock during fail-safe action
• ISO 5211 mounting standard for easy valve installation
• Supports AC and DC power supply options (e.g., 110/220 VAC, 24 VDC depending on model)
• Compatible with control accessories and smart modules:Local Control Unit (LCU) / Proportional Control Unit (PCU) / Current Position Transmitter (CPT) / Limit switch / position feedback systems
• Supports industrial communication protocols such as: Modbus / Profibus / Foundation Fieldbus / HART
• Designed for compact installation in confined industrial spaces
• Suitable for industrial environments like oil & gas, water, HVAC, and power systems