ELECTRIC VALVE DIAGNOSING DEVICE

摘要

An electric valve diagnosing device capable of realizing highly accurate diagnosis at low cost. The electric valve diagnosing device comprises a valve element drive part openably driving a valve element and a spring cartridge extending and retracting according to a reaction from the valve element drive part. A spring compressing mechanism or a worm movement amount measuring means is installed in the valve element drive part through an adapter. Thus, since the spring compressing mechanism can be easily attached/detached and the valve element drive part side of the device must not be modified when the spring compressing mechanism is installed, the spring compressing mechanism can be shared between electric valves, and a reduction in the cost of the diagnosis of the electric valve and an increase in the accuracy of diagnosis can be realized.