Jiangsu Lan valve General Equipment Co., superior product quality, reasonable prices, excellent service dedicated to provide you with a variety of types of valves Denso, driving valves, installation and commissioning on-site assistance, the provision of technical assistance. Explosion-proof electric gate 1① valve using pressure from the tight seal or valve, valve cover gasket seal structure, trustworthy! Safety and reliability. ② valve using intermediate double plate with universal roof structure, can automatically adjust the valves and valve seat sealing surface of the goodness of fit, to ensure the valve seal. At the same time this structure and easy maintenance, cost savings, better valve interchangeability. ③ valve seat sealing surface welding with cobalt chromium tungsten carbide formed by the plasma, a high sealing surface hardness, abrasion resistance, scratch resistance, and long service life. ④ stem with nitriding steel, surface nitriding treatment, high hardness, resistance to abrasion, corrosion resistance and long service life. With the improvement of the level of automation of coal mines, valve drive, manual valve is difficult to adapt to the needs of modern development in the transformation of the old mine shaft or new designs are widely used in electric valve.江苏兰 valve General Equipment Co. mine explosion-proof electric valve actuators, valve is designed to improve coal mine automation systems developed, MOV, and KXBC flameproof electric valve actuators control box for electric equipment and supporting facilities products. 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, shall be indicated on the nameplate, and to calculate the maximum ambient temperature of the reference temperature. (At 25 ℃) 1.3 ambient air relative humidity less than 95%. _ Transmission Valve-valve gate (certified) _ driven valve provided by 江苏兰 valve General Equipment Co. Jiangsu Lan valve General Equipment Co., Ltd. (www.lanfa.cn) Changzhou, Jiangsu, regulating valves 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 for Jiangsu Lan valve.