... valve 2)No noise 3)Travel place and open display 4)Fire-proof PC 5)PTC heating E30G ... Electro-thermal Actuator is designed to control the open/close of small valve or Actuating control of ... power off. 3) No noise. 4) Travel place and open display. 3, Technical Data 1) Power Supply: AC24V, 110V, ... Electro-thermal Actuator is designed to control the open/close of small valve or Actuating control of PDM ...