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.

    精品久久久久久无码专区不卡| 久久亚洲欧美国产精品 | 147西西午夜大胆视频| 亚洲精品乱码久久久久久| 精品乱码一区二区三区四区| 亚洲综合国产精品| 日韩精品久久无码中文字幕| 99精品国产丝袜在线拍国语| 8050免费午夜一级国产精品| 久久久这里有精品中文字幕| 亚洲国产精品一区二区久久hs| 99re这里只有精品国产精品| 亚洲av永久无码精品国产精品| 国产精品福利在线播放| 麻豆精品视频在线观看| 久久er99热精品一区二区| 亚洲AV无码成人网站久久精品大| 91精品啪在线观看国产| 欧美午夜精品一区二区三区91 | 国产精品亚洲片在线观看不卡| 亚洲精品免费在线观看| 亚洲欧美一级久久精品 | 国产精品欧美亚洲韩国日本久久 | 国产精品乱码高清在线观看| 国産精品久久久久久久| 99热热久久这里只有精品68 | 中文字幕在线亚洲精品| 久久久精品午夜免费不卡| 亚洲国产精品丝袜在线观看| HEYZO无码综合国产精品| 九九热这里只有国产精品| 欧美精品黑人粗大免费| 国产精品九九九| 日韩精品人妻系列无码专区免费| 91精品视频在线| 无码久久精品国产亚洲Av影片| 国产成人99久久亚洲综合精品 | 日韩精品在线免费观看| 欧美成人免费全部观看天天性色| 欧美成人精品一级高清片| 国产偷窥女洗浴在线观看|