Update time:2021.03.24 Views:394
The pneumatic actuator uses AC220 single-phase alternating current as the power source, accepts DC4-20mA from DCS, PLC system and other operators, and standard signals to control the actuator to switch valves or automatically adjust. The electronic control module uses the most advanced hybrid integrated circuit, including complete protection functions, which can be controlled on site or remotely. It is designed as a box and sealed with resin.
The drive feedback quantity adopts high-performance conductive plastic potentiometer, which has the characteristics of high precision and long life. It can be combined with various angular stroke adjustment mechanisms to form a high-performance, high-reliability electric control valve. Therefore, it is widely used in metallurgy, power generation, petrochemical, papermaking, light industry and environmental protection industries.
Main features of pneumatic actuator
1 The actuator is designed with a servo system (no need to add a servo amplifier), it only needs to be connected to DC4～20mA (or DC1～5V) signal and AC220V single-phase power supply to work. Built-in wiring terminals, wiring is extremely simple and convenient.
2 The key component of the actuator, the controller, adopts the most advanced hybrid integrated circuit and is molded with resin. The shape is box-shaped, small in size and high in reliability.
3 The feedback detection of pneumatic actuator drive quantity adopts high-performance conductive plastic potentiometer with a resolution of <0.4%.
4 With self-diagnosis function, when a fault occurs, the indicator light on the controller will immediately send out an indication signal.
5 When the off signal can be set with the state selector switch (the spool is in the fully open, fully closed or self-locking state).
6 The state selection switch can be used to set (positive and negative action).
7 The input signal can be set to (DC4～20mA or DC1～5V) with the state selection switch.
8 It is easy to adjust the working zero point (start point) and stroke (end point).
9 When the power is suddenly cut off, it can ensure that the valve core is self-locking.
10 Using synchronous belt transmission, effectively reduces noise.
11 Pneumatic actuator delay protection function, when rated load, it can implement state self-locking, when a fault occurs, the protection can be started immediately, and the delay protection can be cancelled by reverse operation