The Introduction
In the past,enabling remote and proportional control for hydraulicequipment was costly. Conventionally, it involved replacing existing valves with PVG (proportional valve ), which could lose thevalve's own manual control function.
Our solution is not to remotely control the valve's hydraulic systemdirectly. Instead, we use wireless proportional remote control actu-ators(TTS series) to remotely operate the valve's original controllevers and spools. These actuators can be installed on hydrauliccrane crossbars or directly connected to various valve's workingsections. This solution is cost - effective, easy to implement, andsuitable for retrofitting existing hydraulic equipment.Widely usedin construction machinery, agricultural machinery, industrial auto-mation and other fields.
Features of the D-Pra Valves
- Easy assembly on cranes,45/80LPM flow rate for 6-12Ton truck crane.
- Cost-effective compared to loading sensor proportional valves, and solenoid unloading valves on inlet section for safety.
- It can remove the deadband and it can limit the max spool stroke and the cylinder speed can be programmed by the proportional control valves according to your applications.
- The motor drives the spool directly with strong torque, so the spool still can work smoothly even with the severely contaminated hydraulic oil.
- Any two actions can be worked together.
- The motor actuator can work 24hours continuously without burning or high temperature.
- Widely control range with different frequence, max 1000m.
Application scenarios
In the operation of truck - mounted cranes, digital proportional remote - control valves control the luffing, telescoping, slewing of the boom and the hoisting action. They accurately adjust the flow and pressure of hydraulic oil to achieve smooth lifting of goods. For example, when lifting large - scale equipment, the operator remotely controls the remote - control valve to precisely control the boom movement, placing the goods accurately at the designated position, improving operation efficiency and safety.
It is used to control the drilling speed of the drilling rig, the rotation speed of the drill pipe, and the flow rate of the mud pump. In the face of different geological conditions, the operator can adjust parameters in real - time through the remote - control valve. Increase the drilling pressure and the rotation speed of the drill pipe in hard formations and adjust the flow rate of the mud pump; appropriately reduce the drilling speed and pressure in soft formations to ensure the quality and efficiency of drilling and reduce equipment wear.
It is responsible for controlling the lifting, rotation, and telescoping of the work platform. The operator remotely controls on the ground, and the remote - control valve precisely controls the hydraulic system, enabling the work platform to reach the designated position smoothly and accurately. It has a fine - motion control function, facilitating delicate operations at high altitudes, such as exterior wall decoration. At the same time, it ensures the safe operation of the platform and prevents out - of - control shaking.
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