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REVERSIBLE ELECTRO-HYDRAULIC POWER UNITS
The reversible electro-hydraulic power unit is mainly composed by a reversible electric motor, an hydraulic pump, a tank and a built-in relief valve. During the choice of the unit it's important to remember that a power unit belonging to this series can only be fitted together with the so-called 'balanced' or 'symmetric' steering cylinders, in other words, those cylinders with a passing-through rod.
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The electro-hydraulic power unit with solenoid valves is mainly composed by an electric motor, an hydraulic pump, a tank, some valves that are electro-magnetically actuated and a built-in relief valve. For the choice of the most suitable unit it's important to make sure that electro-hydraulic power unit's capacity is proportionate to the steering cylinder's volume.
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ELECTROHYDRAULIC TELEPHONES EXCHANGE FOR ENSLAVEMENT
The range of the electrohydraulic telephones exchange for autopilot BCS is truly much wide in order to satisfy grandissima a variety of applications. Our telephones exchange not only represent an interface for the connection of the autopilot, but important characteristics have some that they render the system timoneria anchor simpler to install and to use. The first important advantage is what such telephones exchange can be endowed of a filling system automatic rifle. Therefore, the eventual ones added of oil will have to be carried out directly from the tank of the same telephone exchange, thus avoiding to soil plancia and the flying-bridge. Moreover, the annoying procedure of the clearing of the air from the system is not more necessary, as it comes automatically carried out from the electrohydraulic telephone exchange as the hydraulic oil circulates in the pipages. The range of electrohydraulic telephones exchange BCS is subdivided in two main series: the series of the telephones exchange with valves solenoids and that of the reversible units. For the choice of the suitable article pack-saddles to only say that in the majority of the applications it comes advised to the installation of a telephone exchange with valves solenoids, as generally more reliable. One prefers instead a reversible telephone exchange for all those applications in which express it is demanded and when absorption problems are introduced, like as an example on the sail boats.
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This Dirty Oil Pack is an Isolated Hydraulic Power Unit (IHPU) that can be easily incorporated into a ROV hydraulic system to provide an isolated hydraulic supply for driving tooling and equipment that may potentially otherwise cause contamination to the main ROV hydrailic supply.
The unit is a fully self-contained circuit incorporating hydraulic motor, pressure compensated pump, compensated reservoir, pressure and return line filters and multiple inlet/outlet connection points. Hook-up to the ROV is quick and simple by connecting a supply, return and drain line to a ROV valve pack function.
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This combined hydraulic power unit with integral 6-station valve pack and control system has been specifically designed for use on small electric ROVs using manipulators and/or tool skids.
The unit incorporates an 220 Vac or 300 Vdc electric motor driven pump, six directional control valves, each with pilot operated checks and a mini control system linked back to a single electrical connector. The system provides smooth, reliable control of small hydraulic manipulator systems using small bore pistons. Any spare functions can be used to power cable cutters, tools, etc. requiring low power input. A topside control system and telemetry system are also available.
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This small Hydraulic Power Unit (HPU) delivers 4 lpm / 1 usgpm at adjustable pressures up to 200 bar / 3000 psi and is suitable for powering manipulators, tools, etc.
Adjustable Pressure Relief Valve
Low Cost Replacement Pumps
Integral Suction Filter
440 or 230 Volts AC Operation
Seal Between Motor and Pump
Starts Under Load
A gear pump is driven by a 3 phase, 440 Vac electric motor, the same type as used on Sub-Atlantic's reliable CTE-02 electric thrusters. An integral, externally adjustable pressure relief valve is used to set the system pressure and a quick-change suction filter cartridge is fitted into the body.
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Our high efficiency submersible motors and HPU’s are the most reliable available in the marketplace. Available in sizes varying from 15 to 280 kW / 20 to 375 HP, they are the perfect power source supply for ROVs Trenchers, TMS and Tooling applications.
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Max Power manufactures two ranges of DC hydraulic power packs:
1) Dedicated single function DC motor pumps
Designed to run a single thruster unit and therefore deliver a specific flow at the thruster’s rated pressure.
Dedicated DC motor pumps
2) The PowerValve™ multi flow dual pressure power packs
These are designed to run a multitude of functions while still retaining optimum power efficiency.
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Two power supply generators, provided with a device "Power Takeoff" (P.T.O.), standard SAE-B, with support adapted to the installation of an hydraulic pump, provided with a fluted shaft with 13 teeth, pitch.
Model GLS14: is appropriate for an adjustable pump, piston, of one
flow between 0 and 30 cm'; Model GLS 25: is appropriate for an adjustable pump, piston, of one
flow between 0 and 30 cm' or 0 and 45 Cm3.
For this application one uses an adjustable pump, with piston, with a regulator of compensation for the pressure and the flow of oil and with limitable volume.
A power supply generator which is also provided with an adjustable piston hydraulic pump, as indicated above, will be able to provide hydraulic power and electric and constitutes a multifunctional "Powerpack".
But when one request of the hydraulic power of the power supply generator, in certain cases it will not be possible any more to provide sufficient electric power at the same time (because of a lack of power of the engine), so that this function must be locked by electric means. See the instruction manual. The flow and the pressure of the pump being able to be limiting, the hydraulic flow can with the being choice regulated on each maximum value.
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