Constant Running Pumps are used in larger, heavy duty hydraulic steering systems where normal reversing pumps cannot be used. The precision pump includes an inbuilt hydraulic fluid reservoir and a tandem center solenoid control valve.
Constant Running Pumps
For steering cylinders up to 60cu in (1000cc)
CRA pumps deliver over 500psi (35 bar) and are very economical, typically drawing under 150 watts
DC models: 12v or 24v.
Wide flow range - units available with max flow rates from 0.5gpm (2000 cc/min) up to 1gpm (4,000 cc/min) with adjustable flow control and dual speed options.
As the solenoids only draw 12watts, the pump can be driven directly from the autopilot course computer without a relay, significantly reducing installation costs.
Inbuilt shut off valves mean the pump can be removed for servicing without draining the steering system.
Specifications & Order Codes
Powerful - Suitable for steering cylinders up to 1000cc (60cu in).
Economical - High performance, low power consumption, compact design.
Fully Integrated Design - No complicated external pipes or fittings to break or leak.
The pump selected must match the size of the vessels steering ram and the power supply capability of the autopilot must also be considered. For optimum autopilot performance the pump should be able to drive the rudder hardover from lock to lock within 13-15 seconds. The drive flow rate should be approximately four times that of the steering ram volume.
Unparralleled Performance, Reliability and Durability!
We have been designing, manufacturing and marketing Autopilot Drives for over 25 years. We hold patents on several unique devices that enhance drive performance and supply drives to most of the Marine Industry's leading Autopilot Manufactures for resale within their autopilot packages.