60241299 Sany Crane Parts Solenoid Valve SV98-T39-0-N-24-DR

Product Description

Sany Crane Parts Solenoid Valve SV98-T39-0-N-24-DR

60241299 fits the following models:

Function:

The solenoid directional control valve plays a crucial role in a crane.Its main functions are as follows:Control of Hydraulic Oil Flow Direction

1. Switching Crane Movements

The lifting and lowering of the hook,as well as the extension and retraction of the boom,are all driven by the hydraulic system.The solenoid directional control valve can change the direction of hydraulic oil flow by shifting the spool position,enabling the hydraulic cylinder or hydraulic motor to move in the desired direction.For example,during the lifting of the hook,the solenoid directional control valve directs the hydraulic oil to the inlet of the hydraulic motor.The hydraulic motor drives the hoisting mechanism,causing the hook to rise.When the hook needs to descend,the valve shifts direction,changing the flow of hydraulic oil,causing the hydraulic motor to rotate in reverse and the hook to lower.2. Multi-path Control

Cranes typically have multiple hydraulic actuators,such as the telescopic cylinder and the luffing cylinder of the boom.The solenoid directional control valve can be installed on multiple branches of the hydraulic system to independently control different actuators.By energizing or de-energizing the solenoid of the valve through the electrical control system,precise control of each hydraulic actuator is achieved.This allows the various mechanisms of the crane to work in coordination and complete complex lifting tasks.Control of Hydraulic System Pressure

1. Auxiliary Pressure Control Function

The solenoid directional control valve can be used in conjunction with pressure-control valves(such as relief valves)in some hydraulic systems.When the hydraulic system pressure reaches a certain value,the solenoid directional control valve can change the flow direction of the hydraulic oil,directing the excess hydraulic oil back to the reservoir.This helps to regulate the system pressure.For example,in the hydraulic system of a crane,when the boom is extended to a certain extent and the pressure in the hydraulic cylinder increases,the solenoid directional control valve can work with the pressure-control valve to prevent excessive system pressure,protecting the hydraulic system and the structural components of the crane.2. Preventing Hydraulic Shock

Hydraulic shock can occur when the hydraulic system rapidly switches actions.The solenoid directional control valve can mitigate hydraulic shock by controlling the rate of change in the flow direction of the hydraulic oil.For example,when the crane's boom quickly stops extending,the solenoid directional control valve can ensure a smooth transition of the hydraulic oil flow,avoiding the impact forces caused by sudden changes in flow velocity.This reduces damage to the hydraulic system and the crane structure.