a parallel single-gate gate valve without diversion holes. The valve adopts the valve seat to float downstream, the spring preloads the automatic sealing structure, the opening and closing force is small, the higher the working pressure, the better the sealing performance. The seal is provided with a sealing grease injection mechanism. Mainly made of carbon steel, stainless acid-resistant steel, a…

Axial-flow check valve should have a streamline shape on the surface of the inner cavity of the valve body, the diversion cover, the valve flap and other flow surfaces, with a rounded front and a sharp back. The fluid is mainly on its surface as layer flow, and there is no or rarely turbulence.…

Explosion-proof electric regulating valve is an important execution unit instrument in industrial automation process control. With the increasing degree of automation in the industrial field, it is being used more and more in various industrial production fields. The valve is divided into three types: linear characteristic, equal percentage characteristic and parabolic characteristic according to …

The regulating valve, also known as the control valve, changes the fluid flow by means of power operation by receiving the control signal output by the regulating control unit. The regulating valve generally consists of an actuator and a valve. According to the power used by the actuator, the control valve can be divided into three types: pneumatic control valve, electric control valve and hydraul…

Pneumatic membrane single-seat control valve can be divided into 5 aspects, namely according to use and function, medium working temperature, pressure, special purpose and according to principle, function and structure. Pneumatic control valve is to use compressed gas as the power source, the cylinder as the actuator, and with the help of valve positioner, converter, solenoid valve, position reten…

The pneumatic single-seat regulating valve is composed of a pneumatic multi-spring diaphragm actuator and a low-flow resistance single-seat valve. The new type of actuator has a low height and low weight, and is easy to install and calibrate. The new valve body has a compact structure, a smooth flow channel, and a large flow coefficient. . In order to achieve interchangeability, the pneumatic sing…

A batch of vital ball valve is ready for shipment…

Pneumatic regulating valve is composed of pneumatic actuator and regulating valve.…