With the improvement of the level of automation of mine, a manual valve is difficult to adapt to the modern needs of the development of electric actuators drawings, in the transformation of the old mine shaft or new designs are widely used in electric valves. Mine 江苏兰 valve General Equipment Co. flameproof electric valve actuators, valve is designed to improve coal mine automation system and developed, while KXBC flameproof electric valve actuators control box for electrical devices supporting the product. 1. Working Environment: 1.1 atmospheric pressure 80 ~ 110kPa; 1.2 ambient air temperature: -20 ℃ ~ + 40 ℃, if the ambient temperature range is not the same electric actuators company shall be marked on the nameplate, and the maximum ambient temperature is calculated on the basis temperature. (When 25 ℃) 1.3 ambient air relative humidity less than 95%.江苏兰 valve General Equipment Co., Ltd. In order to facilitate mine drainage valve automation system of centralized control of actuators, the company on the basis of KXBC series on the development of a control KXBC series one, a control valve electric three flameproof device control box. The series has a link with the DCS system interface functions in the electrical properties of the electric actuator is designed so that the control box used in the automation system is more comprehensive, reliable, on the basis of the control box with short circuit protection, overload protection, under voltage protection, leakage protection, over-torque protection, phase protection and phase sequence automatically correct identification of other functions, and setting the travel control, remote / local control switching function, making it practical function even better. Turn actuator _ _ 江苏兰 valve electric actuator is provided by 江苏兰 valve General Equipment Co.江苏兰 valve General Equipment Co., Ltd. (www.lanfa.cn) strong, credible, in Changzhou, Jiangsu regulating valve industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Jiangsu Lan valve and you hand into the brilliant, for a better future!