The actuator is specially developed for use with VFB butterfly valves in the HVAC industry. Two isolated auxiliary switches and an electrical heater are standard in these series. The protection class is IP65 to ensure a dust-proof and shower-proof from all angles. An hand operation is standard. When hand operation is active, a yellow ring is displayed and the actuator motor is not operative. the position indicator is clearly recognizable all around. The opening and closing speed is independently adjustable in the proportional application. VA-9072-12
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