Autopilot drive unit PR+RU series
steering systemhydraulic systemhydraulic

autopilot drive unit
autopilot drive unit
autopilot drive unit
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Characteristics

Applications
for autopilots, steering system, hydraulic system
Type
hydraulic

Description

PR+ RU Reversing DC Hydraulic Power Unit with reservoir and clutch PR+ RU Reversing DC Hydraulic Power Unit with reservoir and clutch Reversing type gear pumps driven by 12 or 24 volt DC permanent magnet motors. Incorporated in the design are pilot operated check valves that prevent the pump being back driven by the manual steering system or rudder load. The motors have an IP67 rating and can be removed from the pump without allowing air into the hydraulic system or fluid to escape. They can be used with both balanced and unbalancedcylinders. The pumps incorporate a fluid reservoir plus an unloading solenoid to allow the steering cylinder to ‘float’ when not in autopilot mode. When used in conjunction with a cylinder of your choice it forms a linear actuator to enable secondary steering via an autopilot. Ingress protection: - IP67 EMC Protection: - BS EN 60945:2002 (DC) Ignition Protection: - BS EN 28846:1993 Ambient Operating Temperature: - -15 to +55 deg C Max Pressure: - 55 bar (intermittent operation) Reservoir Capacity: - 107cc at midships Max heel Angle: - 60° Ports: - A = Cylinder port G1/4 (BSP) Parallel B = Cylinder port G1/4 (BSP) Parallel Filler / Breather G1/2 (BSP) Parallel Rotation: - Red lead to positive - Pressure to A port Hoses: - Suitable for working pressure 55 bar Minimum burst pressure: - 100 bar Fluid: - ISO VG10 to VG40 Hydraulic mineral fluid meeting ISO 6743-4 HV The following commercial fluids are suitable - Fuchs Renolin B15 HV1 Seastar HA5430

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