Kawasaki Electro-Hydraulic Unit industrial pump
Location:trondheim
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Seller's contacts
+49 89 380...
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+49 89 38031644
Netherlands, Barneveld
The system comprises an electro-hydraulic unit that connects to a receiver (e.g. an
underwater hammer
vibrator or other hydraulic driven equipment) via hoses for inshore or offshore underwater operations. The system was developed through a research program for generating seismic shear waves in combination with a vibrator. Has only approx. 200 hours run time and has been stored since the program ended. Recently opened and inspected and found in good condition
Electric Motor
Model/type: From BEVI Norge AS
SKG 315M-44
Motor effect: 160 kW @ S6-30% operation i.e. continuous operation with full load 30% of a 10 minute period
132 kW @ normal load
Operational voltage: 3 x 400 V Y
3 x 690 V Δ
frequency 50 Hz
Revolutions: 1485 RPM (4-poles)
Max power consumption: @ 400 V: 272 A
@ 690 V: 158 A
Start power consumption: approx. 8 x max power consumption
Hydraulic Pump
Model/type: Kawasaki K3VG280-1ANR-4000: Pressure compensated variable displacement swash plate type piston pump
Maximum oil feed volume at 1485 rpm: 410 l/min without back pressure. The pump is pressure compensated i.e. it reduces its displacement when the pressure oil increases up to the pressure regulator’s setting
Hydraulic gauge output: Max operational pressure: 220 bar (pump compensator’s pressure setting)
Design pressure: 250 bar
Test pressure: 270 bar
Max oil delivery volume: 400 l/min @ 220 bar
Submersible Tank with Volume & Pressure Compensator
Submersible tank: Steel tank with total volume approx. 800 liters
Compensator: The tank is fully filled with hydraulic oil and the compensator with a spring loaded piston ensures that there is always a positive differential pressure inside the tank. With variations in oil volume
which is determined by filling of accumulators any attached equipment
hydrostatic pressure from the surrounding water and hydraulic oil temperature
the compensator will be pushed outward with increasing oil volume and inward with decreasing oil volume
The compensator’s piston is open to surrounding sea water so that the hydrostatic pressure is transferred to the oil inside the tank. The positive differential pressure inside the tank prevents any sea water from entering the tank. Total oil volume for the compensator is 30 liters
Oil Cooling System
During operation heated needs to be removed from the oil. The cooling loop comprises a hydraulic driven water pump that circulates sea water through the cooler. The cooler’s oil side is connected to the return line from the vibrator. A separate hydraulic pump for this purpose is mounted directly onto the main hydraulic pump
Additional equipment
150 meters rubber coated electrical cable with subsea (water tight) connector
two 2 ton trolley jacks
lifting chain sling and 150 m communication cable for control of vibrator. A 21 foot container and frequency convertor may also be included at additional cost
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