Hand operated spur gearbox for multi-turn valves

Written by: Tom Austin-Morgan | Published:

Rotork Gears has released the HOS/MPR multi-turn spur gearboxes, designed for the manual operation of gate, globe, sluice and penstock valves with torque demands from 508 to 15,917Nm.

These rugged gearboxes can be installed above or underground with upward or downward input orientation. The enclosed, maintenance-free spur gearing is grease lubricated for life and designed with ratios to meet manual rim effort requirements. A range of handwheels is available with rim diameters between 200 and 1000mm.

Standard materials of construction, including a cast iron gearcase, ductile iron baseplate, protected steel input shaft and protected steel fasteners, provide resistance to aggressive operating environments. The standard IP67 dust and watertight enclosure can be increased to IP68 and an ISO 10497 firesafe option is also available.

Other options include position indicators, two-speed input reducers and flexible extensions, padlockable input, an interlock safety system, gloss paint and special coatings. Low and high temperature options increase the standard operating range of between -40 and 120°C to -60 and 200°C.


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