Hydraulic Reversing Piston Pumps

The Benefits Of An Octopus Reversing Pump

Reliable – Patented piston pump technology with only three moving parts
Twice The Power – Delivers over twice the hydraulic output per watt of input
Half The Power Consumption – Accurate ram positioning means fewer course corrections
Adjustable Flow Rate – Configure performance to suit your vessel
Easy Servicing – Shut off valves allow removal without draining steering system

Twice the Power 

The unique Octopus piston pump delivers over twice the hydraulic output per watt of input than a standard hydraulic gear pump. 

Half the Power Consumption

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. 

Pinpoint Accuracy 

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. 

Save on Installation Costs

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. 

Adjustable Flow Rate 

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. 

Getting the best steering performance for the boat 

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:

HARDOVER TIME = CYLINDER (RAM) CAPACITY x 60
FLOW RATE

Example: A boat has a 200cc steering cylinder (ram) and a 12 volt system.  So either the OCTAF1012 or the OCTAF1212 would be suitable (see table below).

For this example we are using the OCTAF1212 which has a minimum flow rate of 600cc/min and a maximum flow rate of 1200cc/min: 

MIN HARDOVER TIME: 200 x 60
600
= 20 sec
MAX HARDOVER TIME: 200 x 60
1200
= 10 sec 

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.

Title
02MAN00024 Rev New-Installation Guide-Reversing Pumps
 1 file(s)  141 downloads
Hydraulic Reversing Piston Pumps, Installation Guides May 10, 2019 Download
OC17212 REV A -INSTALLATION GUIDE OC17SUK03 Unbalanced Valve Kit
 1 file(s)  25 downloads
Installation Guides April 16, 2019 Download
OC15282 Rev A OC15SUK15B – Murcury-Mariner-Suzuki OB Installation Kit
 1 file(s)  16 downloads
Installation Guides April 16, 2019 Download
OC15281 Rev A OC15SUK15A – Yamaha 115-220 OB Installation Kit
 1 file(s)  18 downloads
Installation Guides April 16, 2019 Download
OC15280 Rev A OC15SUK12C – Type C – Multi IO Connection Kit
 1 file(s)  20 downloads
Installation Guides April 16, 2019 Download
OC15279 Rev A OC15SUK12B – Type B – Multi IO Connection Kit
 1 file(s)  18 downloads
Installation Guides April 16, 2019 Download
OC15278VL REV D – INSTALLATION GUIDE – Type 2 RFB MODULE
 1 file(s)  125 downloads
Installation Guides, Type R Mechanical Remote Drives May 3, 2019 Download
OC15276VL REV B – INSTALLATION GUIDE – Type RS Sailboat Drive
 1 file(s)  183 downloads
Installation Guides, Type RS Sailboat Drives May 3, 2019 Download
OC15270 REV D- INSTALLATION GUIDE – Type S & T Dashboard Mechanical Drive
 1 file(s)  205 downloads
Installation Guides, Type S/T Dashboard Drives May 3, 2019 Download
OC15269VL REV F – INSTALLATION GUIDE – TYPE R DRIVES
 1 file(s)  165 downloads
Installation Guides, Type R Mechanical Remote Drives May 3, 2019 Download
OC1963 REV C – INSTALLATION GUIDE – CRA Pump
 1 file(s)  47 downloads
Hydraulic Constant Running Pumps, Installation Guides May 3, 2019 Download
OC1850 REV A – INSTALLATION GUIDE – CRB PUMP
 1 file(s)  44 downloads
Hydraulic Constant Running Pumps, Installation Guides May 3, 2019 Download
OC1675VL REV A – INSTALLATION GUIDE – LAU Linear Drive
 1 file(s)  16 downloads
Installation Guides April 16, 2019 Download
OC1674 VL REV A – Installation Guide – 45mm Linear Drive
 1 file(s)  109 downloads
Hydraulic Linear Drives, Installation Guides May 3, 2019 Download
OC1673 VL REV NEW – Installation Guide – 38mm Linear Drive
 1 file(s)  135 downloads
Hydraulic Linear Drives, Installation Guides May 3, 2019 Download
OC15SUK19 – INSTALLATION GUIDE – Universal Connection Kit 9 inch stroke
 1 file(s)  19 downloads
Installation Guides April 16, 2019 Download
MECHANICAL DRIVE ACCESSORIES
 1 file(s)  20 downloads
Installation Guides April 16, 2019 Download
INSTALLATION GUIDE – 38mm Linear Drive LAR LAM
 1 file(s)  20 downloads
Installation Guides April 16, 2019 Download
INSTALLATION GUIDE – Verado Hose Kit OC17SUK34
 1 file(s)  20 downloads
Installation Guides April 16, 2019 Download
HYDRAULIC ACCESSORIES & SERVICE PARTS
 1 file(s)  21 downloads
Installation Guides April 16, 2019 Download