Zhejiang Petrochemical Valve:The use and characteristics of pneumatic control valve

    2018-06-13 Read:2215
          The human civilization is constantly improving, the national science and technology is developing at a high speed, and the enterprise innovation is changing with each passing day. Our Zhejiang Petrochemical Valve Co., Ltd. will do its utmost to make new contributions to the domestic and international customers for the national economic construction.
          1, the use and characteristics of pneumatic control valve:

          The utility model relates to a right-angle rotary structure, which is matched with a valve positioner and can realize proportional adjustment; the V-shaped valve core is most suitable for various adjustment occasions, has a large rated flow coefficient, large adjustable ratio, good sealing effect, and adjustment Sensitive, small size, can be installed in a vertical position. Suitable for controlling gases, vapors, liquids and other media.

          It is characterized by a right-angle rotary structure consisting of a V-shaped valve body, a pneumatic actuator, a positioner and other accessories; it has an inherent flow characteristic of approximately equal ratio; a double-bearing structure, small starting torque and excellent sensitivity And induction speed; superior shearing ability.

          2. The pneumatic piston actuator adopts compressed air as the power source. The movement of the piston drives the crank arm to rotate 90 degrees to achieve automatic opening and closing of the valve. Its components are: adjusting bolts, actuator box, crank arm, cylinder block, cylinder shaft, piston, connecting rod, universal joint shaft.

          3. Working principle of pneumatic regulating valve: The pneumatic regulating valve is composed of an actuator and an adjusting mechanism. The actuator is a thrust member of the regulating valve, which generates a corresponding thrust according to the magnitude of the control signal pressure, and pushes the adjusting mechanism to operate. The valve body is an adjustment component of the pneumatic regulating valve that directly contacts the regulating medium to regulate the flow of the fluid.

          Summary features: Pneumatic control valve is simple to control, fast in response, and intrinsically safe, no need to take additional explosion-proof measures. The pneumatic regulating valve is powered by compressed air, which realizes switching quantity or proportional regulation. The cylinder is used as an actuator to receive the control signals of the industrial automation control system to complete various process parameters such as regulating the flow, pressure and temperature of the pipeline medium.

    久久精品国产亚洲一区二区| 国产精品.XX视频.XXTV| 99久久er这里只有精品18| 国产精品白浆在线观看免费| 欧美精品在线视频| 影音先锋xf资源站男人| 亚洲AV永久无码精品水牛影视| 99精品高清视频一区二区| 精品国产成人在线| 亚洲国产精品无码av| 免费视频精品一区二区三区| 日韩精品无码免费视频| 久久精品国产亚洲AV嫖农村妇女| 高清成年美女xx免费网站黄| 久久久久久极精品久久久| 国产精品国产三级国产a| 日韩一区二区三区在线精品| 久久免费的精品国产V∧| 国产女人成人精品视频| 蜜桃麻豆www久久国产精品 | 久久精品黄AA片一区二区三区 | 先锋资源中文字幕| 久久精品人妻一区二区三区| 色婷婷影院你懂的| 国产精品久久久久9999| 亚欧洲精品在线视频免费观看| 精品偷自拍另类在线观看| 国产乱码伦精品一区二区三区麻豆| 亚洲国产另类久久久精品黑人| 91精品国产自产在线观看| 久久中文字幕亚洲精品最新 | 欧美日韩精品一区二区三区不卡 | 国产精品亚洲片在线| 国产精品自产拍高潮在线观看| 中文字幕在线精品视频入口一区| 影音先锋国产精品国语对白| 色先锋资源久久综合5566| 97精品国产97久久久久久免费| 亚洲欧美精品AAAAAA片| 国产A∨免费精品视频| 无码精品国产VA在线观看DVD |