The VA500. Series synchronous motor driven actuator, for valves in heating, ventilation and air conditioning applications, is available for floating (3-point) control or proportional control with 0-10 V position feedback signal. It provides a stroke capability of 8 mm to a maximum 20 mm. This compact, non-spring return actuator has a 500 N nominal force and responds to a variety of input signals. The actuator can be combined with VG9000 and VGS8… valves in accordance with the maximum close-off pressure ratings specified (see pertinent valve product bulletins). They can be ordered as a separate unit or as a factory fitted valve / actuator combination