Pneumatic pneumatic - valve The characteristics of pneumatic butterfly valve and maintenance skills

at present, the pneumatic valve adjustment, as a kind of used to realize on-off and flow control components, piping system has been used in petroleum, chemical industry, metallurgy, water and electricity is widely used in many fields such as extremely. In had known the pneumatic butterfly valve, the sealing structure is used in its seal form sealing materials for rubber, ptfe, etc. Because of the limitation of structural features is not adapt to the high temperature, high pressure and corrosion resistance, wear resistance, etc. Pneumatic butterfly valve is commonly used in pipeline system and fluid engineering, one of the pneumatic pneumatic valve is usually made of pneumatic valve pneumatic actuators and pneumatic valve adjustment, it has the following features:, small and light, easy disassembling and maintenance, and can be installed in any position. , simple and compact structure, small operation torque, ° slewing open quickly. , compared with the pneumatic brake valve flow curve tending to straight line regulation performance is good. Pneumatic valve, pneumatic butterfly butterfly plate structure without pin is used to connect with pneumatic valve stem, to overcome the possible leak point. , the butterfly plate adopts the cylindrical spherical shape, to improve the sealing performance and prolong the service life of the pneumatic valve, with pressure opening and closing more than ten thousand times remain zero leakage. , seal can be replaced, and reliable sealing achieve two-way sealing. , the butterfly plate can spray coating according to user requirements, such as nylon or ptfe. , the pneumatic valve can be designed as flange connection and the connection to the clamp. , drive way can choose manual, electric or pneumatic actuators driven. Butterfly butterfly plate installed on the diameter of the pipe of pneumatic valve. In the cylindrical channels of pneumatic valve pneumatic butterfly valve body and disc butterfly plate around the axis of rotation, rotation Angle for ° - Between °, rotate to °, the pneumatic valve is fully open. Butterfly pneumatic valve has simple structure, small volume, light weight, only by a few parts. And simply rotate ° rapid opening and closing, simple operation, at the same time, the pneumatic valve has good flow control characteristics. Butterfly pneumatic valve in the fully open position, the butterfly plate thickness is medium flows through the only pneumatic valve body resistance, and so by the pneumatic valve pressure drop is small, it has good flow control characteristics. Butterfly pneumatic valve seal and metal sealing machine has two sealing type. Elastic sealing pneumatic valve, sealing ring to be set on the pneumatic valve body or attached to the butterfly plate peripheral. Using metal seal pneumatic valve generally live longer than elastic sealing pneumatic valve, but it is hard to be completely sealed. Metal sealing can adapt high working temperature, elastic seal has the defect of being limited by the temperature. If required control pneumatic valve used as flow control, mainly is the right choice of size and type of pneumatic valve. Adjusting the structure principle of pneumatic valve is especially suitable for production of large diameter pneumatic valves. Butterfly pneumatic valve not only in the oil, gas, chemical industry, water treatment and other general industrial used widely, but also applied to the cooling water system of thermal power plants. Pneumatic butterfly valve maintenance in the following aspects: pneumatic valve, pneumatic butterfly should be confirmed before use pneumatic valve fully open under the premise of through the pipe to wash, in order to avoid has the sundries such as welding slag scratch sealing surface. Pneumatic valve, pneumatic butterfly usually set the by-pass line, at the time of repair or replacement of pneumatic butterfly valve, can use by-pass pipe using process as usual. , pneumatic butterfly valve can be installed in vertical lie within the range level °, never will flip pneumatic actuators downwards. Crank arm to the lag structure, pneumatic actuators, used for manual device, fault when removing the air supply pipe directly with a manual wrench manual operation can be realized. , in use process such as the discovery of gland leakage, tighten a press cover bolts can be solved. To understand the characteristics of pneumatic butterfly valve, we can better in combination with the characteristics of it, foster strengths and circumvent weaknesses, play to the use of its advantages, completes the maintenance work is also in order to better guarantee the use effect, and then extend the service life of it, let it better service to our production.
YAZE( Pneumatic company's main products: pneumatic pneumatic valve pneumatic ball valve pneumatic butterfly valve Keywords: pneumatic pneumatic valve pneumatic pneumatic valve