Raymarine Type 2 Pump 24V, 14-21 cubic inch, M81123
Raymarine Hydraulic Steering Systems
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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 engined boats, or to the drive unit on
outboard engined boats. Your steering system documentation will have this
information.
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Autopilot Tip
If you cannot find the ram size on your steering system documentation,
you can look on the cylinder ram itself for the brand and model number. Once
you have the number use our
hydraulic cylinder ram cross-reference guide
to determine which hydraulic autopilot pump is compatible with your
vessel's hydraulic steering system.
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Drive Type
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12V: E12139
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12V: M81120
24V: M81119
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12V: M81121
24V: M81123
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12V: M81122
24V: M81124
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Constant Running Pump
(12V or 24V)
12V: E12171
24V: E12172
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Vessel Displacement
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Does not apply here. The drive unit is matched to the ram
capacity of the steering system
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Ram Capacity
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50cc-110cc
(3.1in3–6.7in3)
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80cc – 230cc
(4.9in3–14in3)
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230cc – 350cc
(14in
3–21in3)
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350cc – 500cc
(21in
3–30.5in3)
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500cc - 1200cc
(30.5in3 - 73in3)
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Maximum Stall Pressure at 12V
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50bar
(750psi)
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100bar
(1450psi)
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80bar
(1160psi)
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57 bar
(827psi)
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Peak Flow Rate (No Load)
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1000cc/min
(67in
3/min)
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2000cc/min
(122in
3/min)
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2900cc/min
(175in
3/min)
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4500cc/min
(274.6in3 / min)
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ACU Used
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ACU-100
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ACU-200
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ACU-400
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ACU-300
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Notes:
- 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
our larger constant running pump used in conjunction with the relevant ACU
- contact Raymarine for details.
- An authorised Raymarine dealer is best suited to installing a
hydraulic autopilot system.
- Type 0.5 suitable for Volvo D4/D6 Sterndrive applications
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Manuals
Hydraulic Pump (E12139, M81119, M81120, M81121, M81122, M81123,
M81124) Installation Guide 81178-5-EN.pdf
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WARNING:
This product can expose you to chemicals including Di-n-hexyl Phthalate (DnHP)
which is known to the State of California to cause reproductive harm, and
Vinyl Chloride which is known to the State of California to cause cancer. For
more information go to 
