Jiangsu Lan valve General Equipment Co., Ltd research and development, production and sales of high-tech enterprises valve actuators. QMB type valve actuators mine with a small-caliber products for the integration of high-voltage electric valve electric device manufacturers, without reprovision control articles, in the absence of electricity can manually switch valve, safe. Opening indication mechanism: mechanical pointer electric device, with the spindle synchronous rotation, to indicate the position of the valve.江苏兰 valve General Equipment Co. manufacturing KXBC flameproof electric valve actuators control box for explosive environments (coal, chemical, oil. Power industries), high safety factor, strong operating capabilities, stable performance . KXBC flameproof electric valve actuators control box Technical Performance: 1. with a variety of short circuit protection, phase failure, overload, voltage, leakage, etc; 2. to provide remote / local two options; 3. Signal level: DC5V, DC24V; 4. output impedance ≤700Ω; 5. Maximum output signal current DC36 mA; 6. After the motor rotation is determined, automatically correcting phase power supply phase sequence how electric device, users can easily access the electric control box The three-phase power; 7. reliable interface with a variety of automatic control systems; 7.1 dry contact provided by the user, using the + 24VDC power supply module (see electrical schematics); 7.2 + 24VDC power supply provided by the user, then the user's + 24VDC power supply negative and negative power supply module and connected together, the power of positive input to the functional side module rotary electric device, you can achieve a variety of control functions; 5.8 input / output signals were confirmed by optical isolation, anti-interference ability; 5.9 valve opening and closing valves, electronic interlocking plus mechanical interlock, reliable guarantee to open and close the AC contactor can not pull; 5.10 minus 15% of rated voltage undervoltage protection value. Electrical equipment manufacturers, quality assurance (certified), electric equipment provided by 江苏兰 valve General Equipment Co. Jiangsu Lan valve General Equipment Co., Ltd. (www.lanfa.cn) Jiangsu Changzhou, control valve leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Jiangsu Lan valve leadership with the staff warmly welcome all inquiries negotiations to create a better future Jiangsu Lan valve.