When to Use Different Solenoid Valves

In the field of modern construction machinery, solenoid valves, as key control components, play a critical role in ensuring the efficient operation of equipment. These precision valves regulate the fluid flow in the hydraulic system through the control of electric current, thus driving various actuators and realizing the coordinated movement of mechanical components. However, the types of solenoid valves required for different construction machinery applications, such as excavators, bulldozers, cranes, etc., vary widely, as different tasks, working conditions and environmental requirements can influence the choice.

 

When to use liquid line solenoid valve?

Liquid line solenoid valve, a valve controlled by electric current, can regulate the flow of liquid in the hydraulic system. It is widely used in construction machinery, and some of the typical use scenarios include:

 

Liquid line solenoid valves can accurately control the speed and amount of liquid flow, thus regulating the flow of mechanical parts and at the same time better controlling the operation of diesel engine parts. In some operations that require precise control, such as lifting, lowering and precise positioning of cranes, liquid line solenoid valves can adjust the flow rate of the hydraulic system to ensure smooth and controllable mechanical movements.

 

In the operation of construction machinery, emergencies occur, the need to be able to quickly cut off the flow of liquid to ensure the safety of equipment and operators. Liquid line solenoid valve can be used as an emergency cut-off device, when needed to quickly shut down the hydraulic system to avoid accidents.

 

Liquid line solenoid valve can realize energy-saving control according to system requirements. In some machinery that requires cyclical work, by shutting off the liquid flow at regular intervals, it can reduce energy consumption and extend the service life of the hydraulic system.

 

With the increasing automation of construction machinery, the liquid line solenoid valve becomes one of the key components to realize automated operation. It can work with sensors, control systems, etc. to realize automated processes, thus improving productivity and consistency.

 

When to use normally open solenoid valves?

Normally open solenoid valve, also known as open solenoid valve, is a class of solenoid valve to keep the valve open when there is no power flow. In the construction machinery, the application of normally open solenoid valve is varied and important, the following lists some typical use of the scene:

 

In some special circumstances, such as emergency shutdown or power failure, the need to quickly interrupt the flow of liquid to ensure the safety of equipment and operators. Normally open solenoid valves can prevent accidents from occurring by cutting off the current and closing the valve, thus quickly cutting off the flow of the hydraulic system.

 

Normally open solenoid valves play an important role in the automatic starting process of machinery. By controlling the current, the normally open solenoid valve can be closed and opened when the machinery is ready, realizing the automatic start process and improving the convenience and efficiency of the operation of other accessories such as starter motor and alternators.

 

In some construction machinery, the hydraulic system may be threatened by overload, and the pressure needs to be reduced by controlling the flow of fluid. Normally open solenoid valves can close when the hydraulic system reaches a certain pressure, thus preventing excess fluid from entering the system and reducing the risk of overload.

 

Normally open solenoid valves can also be used for gas venting treatment in hydraulic systems. When gas accumulates in the system, the normally open solenoid valve can be closed to allow the gas to be discharged through the exhaust port, ensuring proper operation of the system.

 

When to use refrigerant solenoid valve?

A refrigerant solenoid valve is a device used to control the flow of refrigerant in a refrigeration system. In construction machinery, the refrigerant solenoid valve may be required in the following situations:

 

Many construction machinery equipment, especially those in the cockpit, need to operate in harsh climatic conditions. The diesel solenoid valve can control the refrigeration system to ensure that the cockpit is always at a comfortable temperature, thus improving operator efficiency and comfort.

 

Some construction machinery is susceptible to performance loss or even failure in high temperature environments. Through the use of refrigerant solenoid valve, the temperature of hydraulic oil or lubricating oil can be controlled and kept within the appropriate working range, thus ensuring the stability and optimization of mechanical performance.

 

In some engineering machinery that requires precise temperature control, the stability and performance of the material is critical. Refrigerant solenoid valve can ensure that the ambient temperature where the mechanical components are located is always within the acceptable range of the material, thus prolonging the service life of the machinery.

 

Some engineering machinery in specific industrial processes need to maintain a specific temperature to ensure product quality. Refrigerant solenoid valves can be used to control the refrigeration system in the process to ensure temperature consistency and stability.