General-purpose and explosion-proof multi-turn electric actuators with double-sided torque limiting coupling, types M, A, Б, В, Г, and Д are designed for the industrial stop valves control installed indoors, under a shed and outdoors. According to GOST 15150-69 climatic versions are Y1, Y2, YXL1, YXL2, T1, T2.
Mounting to valves is by flange with mounting dimensions depending on the types of electric actuators M, A, Б, В, Г, or Д.
Electric actuators may be mounted in any position.
Electric actuators may be controlled from remote control board and manually.
Electric actuators provide for:
- closing and opening the valve passage from the control board by pushing the start buttons and stopping the valve gate in any intermediate position by pushing the “Stop” button;
- automatically disengaging the electric motor by torque coupling upon reaching the preset output shaft torque in the “closed” and “open” positions, or in case of emergency seizure of the moving parts in the process of closing and opening;
- warning signal of the extreme positions of the valve gate on the control board and actuation of the torque limiting coupling;
- automatic switching the electric motor off by limit switches when the valve gate reaches the extreme positions;
- local indication of the extreme and intermediate positions of the valve gate on the local indication scale;
- remote indication of the degree of the valve passage opening on the control board (if a position transducer is available);
- automatic change-over of the electric actuator from manual control to electrical control or independent manual and electrical control;
- electric interlocking of the electric actuator with other mechanisms and units;
- torque valve regulating within the limits shown in the table.
Electric actuators of types Б, В, Г, Д may be delivered with limit switches electronic module (LSEM).
General-Purpose and Explosion-Proof Multi-Turn Electric Actuators with Double-sided coupling (ТУ 26-07-015-89)
