Patent ID: 8490943
Filing Date: 2013-07-23
Classification: F16K

Abstract:
1. An actuator for a valve in a heating, ventilation and/or air conditioning system, comprising: a housing; a first shaft, arranged at least partially in the housing and coupled directly or indirectly to the valve to adjust the valve during a rotation of the first shaft; a hand-operated element coupled to the first shaft and having a crank housing; and an overload clutch, arranged between the hand-operated element and the first shaft, limiting a torque transmitted onto the first shaft by the hand-operated element to a predetermined maximum value, the overload clutch including a coupling element; and a replaceable spring element, formed as an elongate strip and manufactured at least in part from a resilient metal and mounted on the crank housing of the hand-operated element, pressing the coupling element against the first shaft such that the predetermined maximum value for transmittable torque is dependent on the replaceable spring element.