reversing hydraulic pump for sale

Accu-Steer hydraulic reversing pump units are designed to interface hydraulic steering systems with autopilot or electric steering control systems. Please click on the images below for details about our various models of Hydraulic Reversing Pump-Sets for Autopilots.

Gear pumps leak oil between the gears, while a piston (such as used in car engines) does not.  This means the piston pump will place the cylinder ram exactly where it is required, positioning the rudder accurately.  This gives far sharper steering, reducingunnecessary course corrections meaning battery consumption on Octopus pumps is up to half that of other pumps.

Leading autopilot manufacturers choose Octopus pumps for their non RFB pilot systems which do not have a Rudder Feedback unit. Previously, slop in the system caused by gear leakage meant that a Rudder Feedback unit was necessary to tell the pilot the exact rudder position. As Octopus pumps will always bring the ram back to the required position the Rudder Feedback unit is not required, which also greatly simplifies installation.

A professional installation should always have a method of isolating the pump from the steering system – Octopus pumps feature inbuilt shut off valves in the pump manifold.

A pump that does not have variable flow (unless dedicated to a range of cylinders such as our fixed 0.8L pump) will be operating too fast or too slow in 90% of cases.  Autopilot manufacturers get around this problem by adjusting the output to the pump to compensate, which either forces the pump to operate for longer periods of time which increases power consumption and wear on the parts, or it will operate at high pressure for short periods of time – also putting unnecessary strain and wear on the system.

Octopus Variable Flow Reversing Pumps precisely control the speed of the ram, reducing unnecessary battery consumption, pressure, strain and wear on the hydraulic system.

The flow rate of the pump can be set to get the best hard over time (cylinder ram speed) for the particular boat. There is a simple equation to calculate the hard over time:

The flow rate on the pump can be adjusted so that the hard over time is between 10 & 20 seconds – select which is most suitable for the particular boat.

Our New Gear Pump Offers Industry-Leading Reliability and Performance in a Smaller, Lighter, Quieter Package.We are excited to introduce our new 2 and 3L configurations suitable for cylinders all the way to 40Ci.

Cost Savings – the increased efficiency and performance means the pumps can be used with smaller autopilot course computers than equivalent drive units.

3000 reversing hydraulic pump products are offered for sale by suppliers on Alibaba.comAbout 5% % of these are hydraulic pumps, 5%% are pumps, and 2%% are construction machinery parts.

A wide variety of reversing hydraulic pump options are available to you, such as new, used.You can also choose from piston pump, gear pump and vane pump reversing hydraulic pump,as well as from 1 year, 6 months, and 1.5 years reversing hydraulic pump, and whether reversing hydraulic pump is hydraulic power units, hydraulic pumps, or fittings.

The Accu-Steer HRP100 The Accu-Steer HRP100 pump set is designed to interface hydraulic steering systems with autopilot or electric steering control systems. The output flow from the pump set determines the speed of the rudder. The output flow of the HRP100 is adjustable between 0 and 3.5 cu. in. per second. The pump has built-in pressure relief valves, which are factory set at 500 psi. This pump is recommended for medium-duty applications on hydraulic steering systems that are 50 cu. in. or smaller in volume. The compact and rugged construction provides for easy installation and long life operation. This pump model will interface with most marine autopilot systems. Available in both 12 VDC and 24 VDC.

12V 67 in³/min Hydraulic Pump (E12139) by Raymarine®. Type: 0.5. Fits Cylinder Capacity: 3.1 - 6.7 in³. Peak Flow Rate (No Load): 67 in³/min. Raymarine Evolution pilots connect to hydraulic steering systems using a rugged hydraulic pump matched to the capacity of the hydraulic steering system. If your system is hydraulic. You"ll need to find out the size (in cc) of the hydraulic cylinder ram(s) mounted to the rudder or inboard engine boats, or to the drive unit on outboard engine boats. Your steering system documentation will have this information.

In some systems with dual steering rams in parallel, cylinder capacity is the total of both rams. Rams in series only require single capacity valve. Hydraulic steering systems with steering rams over 500cc require larger constant running pump used in conjunction with the relevant ACU

Reversing pumps are used when hydraulic steering is fitted on boats up to 65 feet L.O.A. (depending on rudder torque). The pumps are switched on by the automatic pilot and make a steering correction to left or right determined by the direction of rotation of the pump motor. The motors are of the permanent magnetic type and reversing direction is accomplished by reversing the motor input current.

The pump has only three moving parts and requires no complicated check valves to prevent rudder movement when de-energized. Output flow is completely adjustable to 50% of rated flow allowing the pump output to be adjusted precisely to the volume of steering cylinder fitted. The pump is exceptionally reliable and delivers more than twice the hydraulic output per watt of input than gear pumps manufactured by competitors.

Motors are heavy duty, a full 85mm in diameter with long brushes and sealed ball bearings for long service life. The molded rubber mounting foot can be rotated to allow the pump to be mounted on any surface.

A useful range of accessories can be used to enhance the pump by incorporating added valves and solid state FET switching. The valves mount directly to the pump body. The FET switch mounts adjacent to the pump. No other autopilot pump made offers such advantages.

Piston pump technology giving higher efficiency and accuracy Fewer moving parts giving increased reliability Variable flow rate to make sure the pump is matched as accurately as possible to the manual steering system Professional cut off valves for simple servicing.