A4VG/A10VG Series Hydraulic Pump Control Valves

A4VG/A10VG Series Hydraulic Pump Control Valves

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

 4 year year

Product details

EZ Control Valve

• Control Method: The EZ control valve typically employs electrical control, utilizing a solenoid to directly operate the displacement mechanism and achieve pump displacement adjustment.

• Features:

• Simple Structure: The solenoid drives directly, reducing intermediate transmission links and enhancing system reliability.

• Relatively Fast Response: Electrical signals transmit quickly, enabling rapid response to control commands.

• High Control Precision: Suitable for applications requiring precise pump displacement control.

• Applications: Commonly used in hydraulic systems requiring accurate pump displacement control, such as construction machinery and agricultural machinery.

EP Control Valve

• Control Method: The EP control valve adopts electro-hydraulic proportional control, generating a force proportional to the input electrical signal through a proportional solenoid to manipulate the displacement mechanism and achieve continuous pump displacement adjustment.

• Features:

• Proportional Control: Pump displacement is proportional to the input electrical signal, enabling stepless speed regulation.

• Strong Contamination Resistance: Compared to pure electrical control, electro-hydraulic proportional control has slightly lower requirements for oil cleanliness, adapting to harsh operating conditions.

• High Control Current: Requires relatively high operating power, with a maximum current of up to 600mA (at 24V voltage).

• Slower Response Speed: Slightly slower response than pure electrical control due to the electro-hydraulic conversion link.

• Applications: Widely used in construction machinery, agricultural and forestry machinery, road machinery, as well as forklifts, cranes, and other equipment, meeting the demand for continuous displacement adjustment.

Comparison between EZ and EP Control Valves

【表格】

Characteristic EZ Control Valve EP Control Valve

Control Method Electrical Control Electro-Hydraulic Proportional Control

Structure Simple Relatively Complex

Response Speed Relatively Fast Slower

Control Precision High High (Proportional Control)

Contamination Resistance General Strong

Operating Power Low High (Maximum current 600mA)

Suitable Applications Precise displacement control Continuous displacement adjustment

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

 Audited supplier

4 year

Address: Ningbo, China

Main Product: hydraulic motor, gear box , hydraulic pump, hydraulic valve , hydraulic winch, hydraulic system

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