Valve actuators 江苏兰 valve General Equipment Co., Ltd. is to achieve programmable valves, automation and remote control devices indispensable driving electric valve controller, its operation can be stroke, torque or axial thrust to control the size, with a small electric valve controller company, easy operation and other characteristics, and can meet the needs of a variety of control. Electric actuators for hand - electric switching mechanism: semi-automatic switch for electric valve controller factory, when the need to manually switch the lever handle, manual state to run automatically when electric. Structure shown in Figure 7. It consists of a handle, the switching member, the upright bars, clutch, spring and other components. Takes handwheel operation, the handle to manually push the direction switch to raise the clutch parts and oppression spring. When the handle pushed to a certain position, the clutch that is out of engagement with the worm gear and hand wheel, and stand upright pole worm end face torsion effect BARS, prop clutch will not fall, you can let go of the handle switch is complete, use the hand wheel operated . The operation takes electric motor will drive the worm gear to rotate, upright lever supported on the end face of the worm that is down, the clutch to move quickly in the direction of the worm spring action and engagement with the worm, but the hand wheel disengaged electric valve controller model, automate manual to electric mode conversion.江苏兰 valve General Equipment Co. KXBC series flameproof electric valve control box in addition to ensuring proof exterior design performance, but also has to prevent misuse of the mechanical and electrical interlock function, so that the device is safe and reliable to use. Note the use of the control box 2: 6. The control box power supply must be a power supply with leakage protection device. 7 non-electrified openings! You must cut off the power supply before opening the lid. 8 cable entry grommet aging deterioration should promptly with the same structure, the same size, the same material (NBR XH-50) to replace, the specific requirements of Figure 7 and Table 3. 9 control box after commissioning and maintenance should be covered tightly each cover, so as not to affect the proof performance. While working to protect its surface explosion can not bump, scratch. 10 non-electrified openings! You must cut off the power supply before opening the lid. 11 unused cable entry ports by plugging rod block and tighten the compression nut. 12 control box, external reliably. Electric valve controller model, 江苏兰 valve (certified), the electric valve controller provided by 江苏兰 valve General Equipment Co., Ltd .. 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.