QT4000 is Eltorque`s largest actuator and is suitable for heavy-duty applications. With an operating torque of up to 4000 Nm, it will handle up to DN800 valves. The QT4000 is available with Digital, Analog, MODbus, and CANbus interfaces.


Min-max torque2500 – 4000 Nm
Min-max closing time 0-100% / 0-90 45 – 140 sec
Valve spindle adapter46x46mm
Valve flangeF16 (According to ISO5211)
Valve applicationsButterfly or ball valves with the quarter-turn operation.
Examples butterfly valves: DN600-DN800 PN16


Weight78 kg
Dimensions H/W/D540/247/247 mm
EncapsulationIP68 (10 m 30 min) – Corrosion protected aluminum enclosure
Operating conditions-25 to +55°C
Not designed for use on open deck of ship, outdoor close to saltwater or exposure to corrosive chemicals
Temperature protectionMotor current is switched off in case of over-temperature. Stator coils are utilized as heating elements in case of low temperatures.
Datasheet QT4000