The TWA range covers actuators for 24 V (SELV) or 230 V supply in both normally closed (NC) or normally open (NO) versions (valve positions with no supply voltage to the actuator). NC/S versions with end switch are also available for some actuator types. The actuator is equipped with a visual position indicator to show the open or closed position of the valve. The TWA can be connected to the RA, RTD, RAVL and RAV-valves from Danfoss. Furthermore versions for valves with Heimeier/MNG/Oventrop M30 x 1.5 connection are available. Other valves must be verified individually to ensure correct valve closing measurement and valve top geometry.
Hot water radiator/baseboard/fin tube heating systems|Hydronic floor heating systems|Slow acting wax element eliminates water hammer associated with motorized valves|Silent operation|Visual position indicator to show the open or closed position of the valve|Low power consumption|Compact size
Danfoss Thermal Wax Actuator, TWA-A, 2 W, 32 to 140 deg F, For Use With: RA 2000, RA-C Series Valve