Schimpf Actuator 10-20/25

The Schimpf (10-20/25) actuator is an original component designed for precise control of dampers, valves, and regulating elements in burner equipment systems. It is used in industrial burners, heat generating equipment, and automated control systems where accurate positioning of air or gas dampers is required. The actuator translates control signals (typically three-point, 0-10 V, or on/off) into rotational movement to open or close dampers or mixing valves. It is commonly installed on air boxes in modulating burners, combustion air dampers, or three-way and four-way mixing valves. The manufacturer part number is 10-20/25, with additional part number 862712008.

When selecting a replacement actuator of this type, key parameters to match include required torque, running time (seconds per 90°), control signal type, shaft diameter and coupling pattern, angle of rotation, and presence of integral auxiliary end switches. Verify these parameters against the original component before installation. If the actuator drives a mixing valve, inspect the valve stem for free movement before fitting the new motor.

Typical failure modes for actuators of this class include stripped gear train, worn end switch, or seized valve stem after prolonged inactivity. When such failures occur, the equipment may fail to position dampers or valves correctly, leading to improper combustion or temperature control. Check for unusual noises, lack of movement, or inconsistent positioning.