A4VG_40 Series High Pressure Piston Pumps
Product Details
Working pressure Nominal pressure 40 MPa, peak pressure 45 MPa Control mode: NV type, no control device DG-hydraulic control, direct control EZ-Electric Two-Point Control, Switched Electromagnet HD-hydraulic control, related to pilot pressure HW-Hydraulic Control, Mechanical Servo EP-Electrical Control with Proportional Electromagnet DA - Hydraulic control, related to deceleration Characteristic - Swashplate axial plunger variable pump for closed circuit hydrostatic transmission. - Flow rate is proportional to driving speed and displacement. - The flow rate increases from zero to its maximum with the swashplate swing angle. - The liquid flow direction can be changed smoothly by making the swashplate swing over the middle. - Variable modes can be easily matched with different control and regulation systems. - The pump is equipped with two relief valves at the high-pressure oil side to protect the hydrostatic transmission (pump and motor) from overloading. - High pressure relief valve also functions as filing valve. - Built-in auxiliary pumps are used as refueling pumps and control pumps. - The maximum filling pressure is limited by a built-in filling relief valve. - Full series with built-in pressure shut-off valves.
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