Raymarine Hydraulic Pump Type 1 12V M81120

Raymarine Hydraulic Steering Systems for autopilots
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.

Drive Type	Type 0.5 (12V)	Type 1 (12V or 24V)	Type 2 (12V or  24V)	Type 3 (12V or 24V)	Constant Running Pump (12V or 24V)
Part Number	12V: E12139	12V: M81120  24V: M81119	12V: M81121  24V: M81123	12V: M81122  24V: M81124	12V: E12171  24V: E12172
Vessel Displacement	Does not apply here. The drive unit is matched to the ram capacity of the steering system
Ram Capacity	50cc-150cc  (3.1in3–9in3)	80cc – 230cc  (4.9in3–14in3)	230cc – 350cc (14in3–21in3)	350cc – 500cc  (21in3–30.5in3)	500cc - 1200cc  (30.5in3 - 73in3)
Maximum Stall Pressure at 12V	50bar (750psi)		100bar (1450psi)	80bar (1160psi)	57 bar (827psi)
Peak Flow Rate (No Load)	1000cc/min (67in3/min)		2000cc/min (122in3/min)	2900cc/min (175in3/min)	4500cc/min (274.6in3 /  min)
ACU Used	ACU-100	ACU-200	ACU-400		ACU-300

 
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 authorized Raymarine dealer is best suited to installing a hydraulic autopilot system.
• Type 0.5 suitable for Volvo D4/D6 Sterndrive applications.