Actuator Accessories

Actuator Accessory Models: ZPQ / ZPB201 / PL In a pneumatic valve control system, accessories such as the pneumatic air treatment unit (air triplet), solenoid valve, and limit switch each play an indispensable role, collectively ensuring system stability and controllability.Pneumatic Air Treatment Unit (Air Triplet): This is an air source processing unit, typically consisting of an air filter (removes impurities and moisture), a pressure reducing valve (stabilizes and regulates air pressure), and a lubricator (provides lubrication for pneumatic components). Its purpose is to supply clean, dry, stable-pressure, and lubricated air to downstream equipment.Solenoid Valve: This is the control core of the system. It receives electrical signals to switch the flow path of compressed air, thereby controlling the direction of the pneumatic actuator's action (e.g., valve open or close). A common single-coil 5/2-way solenoid valve is suitable for single-acting actuators, while a double-coil 5/2-way solenoid valve is used for double-acting actuators.Limit Switch (Position Feedback Unit): This is a valve position detection and feedback device. It is mechanically connected to the valve stem or actuator shaft. Through internal micro switches or proximity sensors, it converts the fully open and fully closed positions of the valve into electrical signals, which are transmitted remotely to the control room for status monitoring and interlock control.These three components are typically used together with a pneumatic actuator to form a complete valve control and feedback loop, and are widely used in automated production lines in industries such as petroleum, chemical, and water treatment.