Swagelok MS-131-DA is the 131 Series Pneumatic Double Acting Actuator designed to provide 90° rotary actuation for Swagelok ball valves. In double-acting operation, it uses compressed air to extend and retract, delivering an actuator displacement of 1.5 in³ (24.6 cm³) per cycle. This MS-131-DA model is commonly used to drive Swagelok 130 and 150 series ball valves in compact valve assemblies.
