Pneumatic control valve overview < / div >

control pneumatic valve is also called pneumatic valve, it is a process from engine operation to change fluid flow in the system of the device. The international electrotechnical commission ( IEC） To adjust the pneumatic valve { Generally referred to as the control of pneumatic valve (abroad 控制阀) } Is defined as: 'in the industrial process control system formed by power operation device terminal element, it includes a control pneumatic valve parts, internal is a process of gradual change component of fluid flow rate. Pneumatic valve body part and are connected to one or more of the actuator. Actuator response control element is used to send signals. 'Visible, pneumatic valve is controlled by the actuators and pneumatic control valve components in two parts.
is for adjusting the pneumatic valve actuator device drivers, it according to the size of the signal pressure to produce the corresponding thrust, make the push rod produces the corresponding displacement, thereby giving impetus to the pneumatic valve of pneumatic control valve core movement. The regulation of the parts is to control the pneumatic valve pneumatic valve parts, it is directly in contact with the medium. Through the displacement actuator push rod, change for the control of pneumatic valve throttling area, achieve the goal of regulation.
control pneumatic valve according to the different methods of its energy, mainly divided into pneumatic, electric, hydraulic pneumatic valve control three categories. The difference between them is the match of the actuators. Pneumatic control valve with compressed air as power source, pneumatic actuators is adjusted; Electric pneumatic valve control for electric power supply, electric actuators is adjusted; Hydraulic pneumatic control valve fluid as power source, with the hydraulic actuators.
control pneumatic valve can, according to their needs, with all kinds of accessories, make its use more convenient, more perfect, better performance, these attachments with pneumatic valve positioner, the handwheel, electrical switches, etc.
as the world's important suppliers of pneumatic valve control, absorb the innovation in the field of pneumatic control valve, committed to the development and production of high quality pneumatic control valve, and provide customers with a full range of industrial pipeline control scheme, the products are widely used in petroleum, chemical industry, electric power, metallurgy, food, medicine, urban construction, form a complete set of machinery and other industries. Products cover electric/pneumatic regulating pneumatic valve series, self regulating pneumatic valve series, type 0 / V regulating pneumatic ball valve series, regulating butterfly series of pneumatic valve and pneumatic valve American standard series varieties, in strict accordance with the UNI/ASME/ASTM/BS/DIN/API/GB standard ten production manufacturing, size from 1/8 'to 56' ( DN3 - DN1400) , the pressure from CLASS150 to CLASS2500 ( PN16- PN420) And can provide carbon steel, alloy steel, stainless steel, super duplex stainless steel and special alloy materials, such as MONEL products use from temperature 196 ℃ to 650 ℃.