江苏兰 valve General Equipment Co. QB ore mine developed valve actuators, the design and manufacture of flameproof electric valve actuators mining valve, the valve is controlled by the Company in accordance with special custom pipeline mine conditions and the environment. QB Series explosion-proof electrical equipment used in electrical wiring introduction of cable power lines must have ground mine valves, wiring and grounding terminal on the phase plate. The introduction of cable outer diameter of the smallest in Figure 10 and Table 4. Pick a good line should be installed gaskets, seals, hydraulic valve mine comprehensive performance test bed, pressed by the compression nut. Shore hardness seals should be 45 to 55 degrees, the rubber seals of aging deterioration should promptly with the same structure, the same size, the replacement of the same material. Unused cable entries mouth stick with blocking closure.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. Mine Valves (certified), mining valve 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.