Hydraulic pump

Universal high quality hydraulic pump compatible with most leading autopilot manufacturers including Nautinet, Raymarine, Sirmad, B&G and Furuno.

€399.00

Hy-Pro Universal Autopilot Hydraulic Pump

Universal high quality hydraulic pump compatible with most leading autopilot manufacturers including Raymarine, Sirmad, B&G and Furuno.

Backed with over 30 years of continuous development the new PR+ range of reversing pumps presents the ultimate in quiet and smooth operation. Unlike noisy piston pump designs the precision gear form delivers smooth flow in all conditions and with minimal noise. Now with IP67 motors that have a 4000 hour brush life these latest generation of Hydraulic Projects power units are the best available.

The PR+ pumps are available in 0.6, 0.8, 1.0, 1.5, 2.0 and 2.5 litre per minute flows. Pilot check valves are fitted as standard, they can be used with both balanced and unbalanced cylinders. They have an advanced protective coating designed especially for the salt laden atmosphere of the marine environment.

Voltage 12 / 24 VDC 
                                                       Typical amp-hour                   Max current 
                                                       5 bar at 25% duty                   Intermittent 55 bar 

                    Nominal L/min              12v        24v                        12v          24v                                               

PR+06                0.6                             0.9         -                             9.0           - 

PR+08                0.8                             1.3         -                            14.0           -

PR+10                1.0                             2.2        1.0                         19.0        9.0

PR+15                1.5                             2.4        1.2                         24.0      11.0 

PR+20                2.0                             2.5        1.3                         25.0      12.0 

PR+25                2.5                             2.7        1.4                         34.0       15.5 

Ingress Protection:                                    IP67 
EMC Protection:                                        BS EN 60945:2002 (DC) 
Ignition protection:                                   BS EN 28846:1993
                                                                     EN ISO 10592:1995 (Small Craft - Hydraulic Steering Systems)

Ambient operating Temperature:         -15 to +55 deg C 
Max Pressure:                                            55 bar (intermittent operation) 
Reservoir line:                                            2 bar Max 
Ports:                                                           G1/4 (BSPP) Parallel 
                                                                     A = ram port 
                                                                     B = ram port 
                                                                     R = reservoir port                 
Rotation:                                                     Red lead to - positive Pressure to A port 
                                                                     Black lead to positive - Pressure to B port 
Hoses:                                                         Suitable for working pressure 55 bar. 
Minimum burst pressure:                       100 bar. 
Fluid:                                                           ISO VG10 to VG40 Hydraulic mineral fluid meeting ISO 6743-4 HV

PUMP SELECTION
It is important to select the correct size PR+ pump as it directly influences the steering performance and power consumption.

The type of vessel to be steered must be considered. The hard-over time may need to be faster on lightweight planing craft and modern yachts or slower on displacement power boats or long keel yachts.

If the pump is too large, the autopilot may become over active and use more power. If it is too small the autopilot may struggle to maintain a good course.

The table below shows the volume of cylinder that each of the PR+ pumps is suited to. These selections give a nominal hard-over* time of 10-15 seconds.
In all cases refer to the information specified by your autopilot manufacturer.

*The hard-over time is the number of seconds that the pump takes to drive the rudder from the port to starboard stops with no flow of water over the rudder. 

Documents
Specsheet and manual