Direct stroke valve electric deviceIt is a specialized execution device that drives valves by outputting linear reciprocating motion. With core characteristics such as strong thrust, high positioning accuracy, and adaptability to linear valves, it is widely used in industries such as power plants, petrochemicals, metallurgy, and water supply and drainage. It accurately controls the opening of linear valves such as gate valves, globe valves, and regulating valves, and is a key equipment for achieving high-precision flow regulation in industrial fluid systems. ​

Strong thrust and linear drive are its core competitiveness. The device adopts motor-driven screw, rack and pinion or hydraulic cylinder conversion mechanism to convert rotational motion into linear lifting of push rods, with thrust covering tens to thousands of kilonewtons, which can easily drive valves with large diameters and high pressure differentials. Using high-precision displacement sensors (such as magnetostrictive sensors) and PID closed-loop control system, the positioning error is ≤± 0.5%, and the repeated positioning accuracy reaches ± 0.1%. It can accurately control the valve opening to continuously adjust within the range of 0-100%. In the boiler feedwater system of thermal power plants, the high-pressure cut-off valve is driven to accurately control the feedwater flow, ensuring that the boiler water level is stable within a ± 5mm error range; On the feed pipeline of the petrochemical reactor, the material ratio is fine tuned by adjusting the opening of the regulating valve to ensure that the reaction temperature fluctuation does not exceed ± 1 ℃. ​

The structure is reliable and has strong adaptability to working conditions. The body is made of cast steel or aluminum alloy material, and key components such as lead screws and push rods are made of high-strength stainless steel, which is wear-resistant and corrosion-resistant; The sealing structure adopts corrugated pipes or mechanical seals, with a protection level of IP65/IP67, which can adapt to harsh environments such as humidity, dust, corrosive gases, etc. For high-temperature working conditions, equipped with heat dissipation devices or using high-temperature resistant materials, it can operate stably in environments ranging from -40 ℃ to 200 ℃; In response to explosion-proof requirements, we provide ExdIIBT4 and other explosion-proof grade models that are suitable for chemical explosion-proof workshops. In the hot air pipeline of blast furnaces in the metallurgical industry, the high-temperature baffle valve is driven to regulate the hot air flow rate; In the field of nuclear power, it is used to drive safety grade gate valves to ensure the reliable operation of reactor cooling systems. ​

Intelligent control and security measures enhance operational efficiency. Equipped with intelligent control module, it can achieve remote control and status monitoring; Built in overload protection, torque limitation, phase failure protection and other functions, automatically stop and alarm when the valve is stuck or overloaded, avoiding equipment damage and pipeline accidents. Equipped with a manual operation handwheel, the valve can be manually driven in case of power failure to ensure system controllability under emergency conditions. In urban water supply and drainage pump stations, it is used to control the opening, closing, and regulation of large-diameter gate valves, achieving stable control of water supply pressure. ​