ZS Series Pneumatic Piston Actuator
The ZS Series Pneumatic Piston Actuator is a pneumatic actuator designed to convert compressed-air pressure into linear mechanical motion for valve operation.
Compared with diaphragm-type actuators, the ZS Series adopts a piston-and-cylinder structure. The actuator is available in multiple cylinder sizes and stroke options to meet different valve operating requirements.
With its compact structure and multiple configuration options, the ZS Series can be used as a pneumatic driving device for industrial valve control applications.
I. Overview
The ZS Series uses compressed air as its power source. Air pressure acts on the piston inside the cylinder, generating linear movement through the piston rod.
The actuator is available in different specifications according to cylinder diameter and required travel.
According to the catalog, the series covers multiple actuator sizes, allowing selection according to the required output force, stroke and valve configuration.
The actuator can also be equipped with accessories and manual operating mechanisms according to application requirements.
II. Structure and Working Principle
The ZS Series consists mainly of a pneumatic cylinder, piston, piston rod and related internal components.
When compressed air enters the cylinder, the air pressure acts on the piston and generates thrust. The piston then moves inside the cylinder and transfers the resulting linear movement through the piston rod to the connected valve.
By controlling the pneumatic signal, the actuator drives the valve to the required operating position.
The catalog provides detailed structural drawings showing the internal arrangement and operating configuration of the ZS Series actuator.
III. Technical Parameters
The ZS Series is available in multiple cylinder sizes, including:
Ø200, Ø250, Ø300, Ø350, Ø400, Ø450, Ø500, Ø600 and Ø800 mm
Different rated travel options are available according to actuator size and application requirements.
The catalog also provides corresponding technical information covering:
- Cylinder diameter
- Rated travel
- Effective output force
- Air source pressure
- Air source connection
- Operating temperature
- Overall dimensions
Because the individual values vary considerably by model and stroke, the detailed selection table in the catalog should be used when determining the required ZS actuator specification.
IV. Matching Valves
The ZS Series provides linear mechanical output and can be combined with suitable industrial valves according to the required stroke, output force and connection arrangement.
The actuator size should be selected according to the operating requirements of the matched valve.
For valve matching, the required actuator thrust, valve travel, air supply pressure and installation dimensions should be considered together.
V. Accessories
The ZS Series can be configured with auxiliary components according to the required control system.
The catalog lists accessory and attachment options for the actuator and also provides different manual operating configurations.
These options allow the actuator configuration to be adapted to different valve-control and operating requirements.
VI. Model Numbering
The ZS model designation identifies the actuator configuration and cylinder size.
The catalog provides model-number explanations for the different ZS specifications, with cylinder diameter forming an important part of actuator selection.
Available cylinder sizes range from Ø200 mm to Ø800 mm, allowing the actuator to be selected according to the required output force and valve operating conditions.




















