Electric parallel gate valve
Electric parallel gate valve: can have AI feedback signal, can be controlled by DO or AO, and is more commonly seen in large pipelines and air valves.
1. Switch form: Electric parallel gate valves are generally driven by motors, and the opening or closing action requires a certain amount of time for analog measurement, which can be adjusted.
2. Job nature: Electric parallel gate valves are generally driven by motors, which are more resistant to voltage surges. Electromagnetic valves are quick opening and quick closing, generally used in places with low flow and low pressure, requiring high switching frequency. Electric parallel gate valves are the opposite. The opening of the electric parallel gate valve can be controlled, with states including open, closed, and half open/half closed, which can control the flow rate of the medium in the pipeline. However, the solenoid valve cannot meet this requirement.
电动平行闸阀is a cut-off valve that uses an electric motor to drive parallel double gate valves for opening and closing, and also has flow regulation function. Its core technical characteristics and applications are as follows:
1、 Core structural features
Parallel double gate design
The double gate is preloaded by springs or horizontally compressed by track mechanisms, ensuring reliable bi-directional sealing. After wear, it can automatically compensate for the sealing gap.
The sealing surface of the gate is made of cobalt chromium tungsten hard alloy plasma spray welding or ceramic material (such as Z944TW type), which has strong wear and corrosion resistance and is suitable for high wear media such as ash and mineral powder.
The electric actuator integrates a motor, gearbox, and worm gear transmission, with a large output torque and supports remote control (PLC/DCS system) and 4-20mA intelligent signal feedback.
Equipped with torque control mechanism and manual/electric switching device, it can be switched to manual operation when power is off.
