Gearbox

Product Code: MD-VLV-0060

Features: Gearboxes intended for electric-actuator mounting differ from standard manual models. | Reduces the required operating torque and allows one operator to open or close the valve. | As operating torque decreases, the number of handwheel turns required to open or close the valve increases. | When selecting an actuator, consider the mounting dimensions and gearbox reduction ratio. | The DN sizes and gearbox types listed in the table refer to wafer and lug butterfly-valve applications. | Consulting the FAF technical team is recommended when selecting a gearbox. | Many valves require an operating torque that can be achieved only through a gearbox. Manual part-turn and quarter-turn operators are available. | Manual operation is normally by handwheel; chain wheels can be used for valves installed in hard-to-reach locations. | The gearbox includes adjustment and locking mechanisms operated by an Allen key. If the disc moves beyond the fully open or fully closed position, the end-stop setting is incorrect. | Contact FAF if the handwheel cannot be turned or the valve does not reach the fully open or fully closed position. Applications: Lug and wafer butterfly valves | Double-eccentric butterfly valves | Gate valves | Ball valves