A combination of the TTV 40W4040 and Air Torque actuator. A full CF8M stainless steel material valve with 316 stainless steel shaft. This particular actuated butterfly valve package is suitable for aggressive mediums and external environments with special actuator coatings including PTFE and marine epoxy. A replaceable valve seat and actuator rated to SIL3 complete a robust general purpose package that will go the distance and provide maximum life capacity. The Air Torque actuator is in field convertible should you ever require a change from the spring return and double acting functionalities.