Pneumatic Actuators Quarter Turn Pneumatic Actuator. Hard Anodised Extruded Aluminium Body with Die Cast Aluminium End Caps. Anti-Blowout Nickel Plated Steel Pinion with Die Cast Aluminium Pistons. NBR O'Rings and Piston Seals. Female Star Drive with ISO 5211 connections. Visual Position Indicator with adjustable End Stops. Namur Solenoid and Switch Box connections as standard. Available in both Single Acting (Air/Spring) and Double Acting (Air/Air). Available size range: Double Acting Model 32 - Model 200 (8nm - 1237nm based on 5.5 bar air supply). Single Acting Model 52 - Model 200 (11nm - 662nm based on 5.5 bar air supply). Fitment: Can be fitted to all Quarter Turn Ball Valve Models within our range. Home| Act1 | Act2 | Act3 | Act4 | Act5 | Act6 | Act7