Construction Machinery Parts Hydraulic solenoid valve coil

April 07, 2021

Hydraulic solenoid valve is an electromechanical device used to control the flow of hydraulic fluid in hydraulic systems. The coil is a crucial part of this valve, and it plays a significant role in its operation.

Function of the Coil:

The coil in a hydraulic solenoid valve is essentially an electromagnetic winding. When electrical current passes through the coil, it generates a magnetic field that moves the plunger (or armature) inside the valve. This movement can either open or close the valve, depending on its design.

Key Components Related to the Coil:

1. Plunger/Armature: Moves within the magnetic field generated by the coil.

2. Valve Body: Houses the moving parts and directs the flow of hydraulic fluid.

3. Spring: In some designs, a spring is used to return the plunger to its original position when the current is turned off.

Types of Hydraulic Solenoid Valves Based on Coil Use:

- Direct Acting Valves: The plunger directly controls the flow path. These valves typically use smaller coils.

- Pilot Operated Valves: The plunger operates a pilot stage, which then allows main-stage fluid to move, controlling the flow. These may require larger coils due to higher forces needed.

Considerations for Coil Design:

- Power Consumption: The amount of power required to activate the coil affects energy efficiency.

- Response Time: Faster response times might require more powerful coils.

- Operating Environment: Environmental factors like temperature and humidity can affect coil performance.

Maintenance and Troubleshooting:

- Coil Failure: Can be caused by overheating, physical damage, or electrical issues.

- Cleaning: Regular cleaning can prevent debris from interfering with the plunger's movement.

- Replacement: If the coil fails, it often needs to be replaced rather than repaired.

When working with hydraulic solenoid valves, it's important to ensure that the coil is compatible with your system’s voltage requirements and environmental conditions to maintain optimal performance and longevity.

If you need to replace/purchase hydraulic solenoid valve coil for an excavator, feel free to Send You Inquiry!

Author:

Mr. Ning Xuewen

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444820597@qq.com

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