Hydraulic Unloading Relief Valve

3 month ago

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

3 year

Product details

Hydraulic Unloading Relief Valve

Specific Content:

I. Functions and Roles

The Hydraulic Unloading Relief Valve primarily serves the following functions:

1. Unloading and Loading Control: When the system pressure reaches a set value, the valve opens, allowing the hydraulic pump to unload. When the system pressure drops below the set value, the valve closes, and the hydraulic pump resumes its loaded state. This helps protect the hydraulic system from excessive pressure damage and ensures stable operation within the set pressure range.

2. Pressure Regulation and Limitation: By adjusting the set pressure of the Hydraulic Unloading Relief Valve, the maximum working pressure of the hydraulic system can be controlled, thereby protecting system equipment and actuators from damage.

3. Energy Saving and Consumption Reduction: In hydraulic systems, when high-pressure operation is not required, the Hydraulic Unloading Relief Valve enables the hydraulic pump to unload, reducing pump power consumption and achieving energy savings.

II. Working Principle

The working principle of the Hydraulic Unloading Relief Valve is based on the balance of forces acting on the valve spool and spring. When the system pressure rises to the set value, the pressure acting on the valve spool exceeds the preload force of the spring, causing the valve spool to move and open the valve, allowing some hydraulic oil to flow back to the reservoir, thereby reducing system pressure. When the system pressure drops below the set value, the preload force of the spring causes the valve spool to reset and close the valve, restoring the hydraulic pump's supply of oil to the system.

III. Structural Characteristics

The Hydraulic Unloading Relief Valve typically consists of a valve body, valve spool, spring, adjustment handle, and other components. The valve spool is the key component controlling the valve's opening and closing, while the spring provides preload force and maintains the valve spool's stable position. The adjustment handle can be used to adjust the valve's set pressure to accommodate different working pressure requirements.

IV. Application Scenarios

Hydraulic Unloading Relief Valves are widely used in various hydraulic systems, such as engineering machinery, agricultural machinery, ships, metallurgical equipment, etc. In these applications, the Hydraulic Unloading Relief Valve effectively controls the pressure of the hydraulic system, protects the safe operation of system equipment and actuators, and improves system stability and reliability.

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

Audited supplier

3 year

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

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