This series of electric valve actuators of the electrical control part of the conventional electrical installation in one, short one-piece electrical equipment, have an overall common type, the overall explosion-proof, overall adjustment type, the overall explosion regulated four. This series of Denso user installation, commissioning, maintenance is very convenient, can greatly save installation costs and shorten the installation cycle, the scene of continuous operation, can also be remote control, centralized control and self-control. Ordinary provided with a control module; modulating adjustment module features can receive and output 4-20mA standard signal can be reliably control valve opening and closing and automatic adjustment.