This series of space-saving pneumatic actuators is designed for most Hoke Flomite? Selectomite? And DL/TL ball valves provide safe, reliable control. For added flexibility, the Space Saver actuator uses a variety of clean gases, including air, natural gas and nitrogen. Spring return and dual acting versions are available for 90? Or 180? Drive. All Space Saver actuators come standard with manual override for emergency operations.