Manual Over-Ride Quarter Turn Worm Gear Operator comes in an enclosure which protects it from dust and splashing. The Quarter Turn Worm Gear Operator has the worm and worm wheel self locking. The Quarter Turn Worm Gear Operator is lubricated by multi purpose grease. The Manual Over-Ride Quarter Turn Worm Gear Operator works at the temperature range of -20 degree C to +120 degree C.
