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Home > Marine Autopilot > Octopus Autopilot Drive >
Octopus Autopilot Pump Type 2 Reversing Pump 12V, 11-22 Cubic Inch OCTAF121217141

Octopus Autopilot Pump Type 2 Reversing Pump 12V, 11-22 Cubic Inch OCTAF121217141




Availability: Usually ships the next business day

Octopus Autopilot Pump Type 2 Reversing Pump 12V, 11-22 Cubic Inch OCTAF121217141
44314List Price: $US 742.00Our Price: $US 600.43
  • 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 left). 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 = 20 sec
600

MAX HARDOVER TIME: 200 x 60 = 10 sec
1200

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.

 
SELECTION GUIDE
PART
FLOW RATE
CYLINDER
VOLTAGE
MAX
AVERAGE
No.
(Adjustable)
RANGE
 
CURRENT
CURRENT
1012
500cc - 1L/min
150-300cc
(9-18in3)
12v
19A
46A
1024
500cc - 1L/min
150-300cc
(9-18in3)
24v
10A
23A
1212
600cc - 1.2L/min
180-360cc
(11-22in3)
12v
19A
46A
1224
600cc - 1.2L/min
180-360cc
(11-22in3)
24v
10A
23A
2012
1.0 - 2.0L/min
245-500cc
(15-30in3)
12v
22A
68A
2024
1.0 - 2.0L/min
245-500cc
(15-30in3)
24v
11A
34A

Click the following link to download installation guide



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**The price is subject to change at anytime without any notice.  We are not responsible for any typographical errors.  Any products can be cancelled from sale at any time.

** All Products sold here are Brand New unless specified Otherwise and come with Full Manufacturer's Warranty

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