Hy-Pro 1.0 Litre per minute Constant Running Pump, compatible with many autopilots. Please contact us if you are unsure of which pump to purchase.

1 Litre per Minute, 100W , available in 12/24v DC [Made in UK]

The Hy-Pro Drive constant running pumps are designed to operate a boats steering mechanism, as part of a marine autopilot system.  Typically used in commercial applications.

The PC+10 and PC+15 have been introduced to the constant running pump portfolio, offering flow rates of 1.0L/min and 1.5L/min.

These smaller pumps are ideally suited  for smaller catamaran vessels within the fishing industry, with steering  cylinder capacities of 150cc to 400cc.

Description

The "PC+" constant running type gear pumps are driven by 12V/24V DC permanent magnet motors . Flow reversal is achieved by switching a double acting solenoid valve.

Incorporated in the design are pilot operated check valves that prevent the pump being back driven by the manual steering system.

Other features include compatibility with balanced or unbalanced cylinders and they can also be used with pressurised reservoir systems (max 3.5 bar).

An adjustable relief valve is fitted as standard.

Maximum flow output at no load is indicated on the rating plate. Check the voltage shown is correct for the output of your autopilot.

Application

A compact constant running hydraulic pump, for use with and autopilot pilot system, to steer smaller commercial craft.

Typically used on catamaran fishing and work boats, with inboard or outboard engines.

Technical Data

Weight: 5 kg
Finish: Motor - black enamel
            Pump: Clear anodised
Solenoid manifold: Black paint to HTS1006
Ports:   G1/4 (BSPP) BS2779'73
Motor:  12V DC or 24V DC 100W
Solenoids: 12V DC or 24V DC 24W
 
Nominal Pump output:

• PC+10     1.0 L/min
• PC+15     1.5 L/min

Relief Valve Set 55 Bar
 
IP Rating: Pump & Coils: IP67
                 Connectors: IP65
EMC Protection BS EN 60945:2002 (DC)
Ignition Protection: BS EN ISO 8846:2017
Location: Under deck, dry compartment only
Orientation: Horizontal or Vertical motor up
Rotation Red lead to positive
Hoses - Suitable for working pressure 70 bar.
              Minimum burst pressure 100 bar.
 
Fluid: ISO VG10 to VG40 Hydraulic mineral fluid meeting ISO 6743-4 HV
The following commercial fluids are suitable.

• Fuchs Renolin B15 HV1
• Seastar HA5430

Autopilot Selection Guide:

It is important to select the correct size of pump as it directly influences the ability of the autopilot to steer the vessel. If the pump is too large, the vessel may over steer and will use more power; if it is is too small then the autopilot may struggle to maintain a course.

“Hard Over Time” is the time that the pump takes to drive the rudder from port to starboard. An autopilot drive preferably gives a “Hard over time” of 10 to 14 seconds unless otherwise specified by the autopilot manufacturer. The type of vessel to be steered must be considered as the “Hard over time” may be faster on lightweight planing craft / modern yachts and slower on displacement power boats/ long keel yachts.

To use the table in our product pictures, you will need to know the volume of your steering cylinder, then select the "Hard over time" that you require. Follow the column down until you approximately match your cylinder volume and then select the pump on that row. If your cylinder has a smaller volume then it will have a faster “Hard Over Time”, but if it is larger, it will have a slower “ Hard Over Time”.

In the Box

1 Litre per Minute 24v DC Constant Running Pump, with solenoids.