Pneumatic film angle control valve is especially conducive to the regulation of high pressure drop, high viscosity, fluid containing suspended and granular substances. It can avoid coking, bonding and blockage, and also facilitate cleaning and self-cleaning. Pneumatic film angle control valve can be used at 90 degree bend joint. Because the valve body has no dead angle, it is easy to sweep, easy to maintain and widely used.
Pneumatic membrane angle control valve
Pneumatic film angle control valve body is right-angled, the spool is single-directional structure, the valve body flow path is simple, resistance is small, generally used in the bottom in and out of the occasion, because this can make the regulation has better stability.
Working principle of pneumatic membrane angle control valve:
Pneumatic membrane angular control valve is mainly composed of pneumatic membrane multi-spring actuator and angular valve. Compressed air is used as power source. With the aid of electrical valve positioner, converter, solenoid valve, position-keeping valve and other accessories, it receives relevant signals of regulating position and automatically controls the opening of valve, so as to achieve medium flow and pressure. And liquid level adjustment. With the equal percentage characteristic as the best, it has stable regulation and good regulation performance.
Generally speaking, angular control valves are installed in the forward direction, i.e. bottom-in and side-out. Reverse installation, i.e. material side-in and bottom-out, is recommended only in the case of high pressure difference and high viscosity, easy coking and medium containing suspended particulate matter. The purpose of reverse use of angular control valve is to improve unbalance force and reduce wear on the valve core, but also conducive to high viscosity, easy coking and suspended particulate media flow, avoid coking and blockage.