Part-Turn Manual Gear Operator

Four series of Worm Gear Operators are available and suitable for all butterfly, ball and plug type valves including 90 degree dampers and guillotine dampers: W0 Series 90 degree Above Ground Service WB Series 90 degree Buried Service WD Series 90 degree Buried Service w/Dial Indicator WG Series 360 degree Above Ground Service Standard features are: Fully compliant to AWWA specifications Precision hobbed one piece manganese bronze worm gear and drive sleeve Heat treated 4140 steel, once piece worm with maximum 16 micron thread finish supported on heavy duty tapered roller bearings Worm Gear and Worm Gear sets are self-locking with minimal blacklash Adjustable end of stoke stops +/-5 degrees Removable splined bushings High strength ductile iron housings WO Series equipped with graduated dial position indicator cover WB Series 2" AWWA wrench nut completely seals input shaft to eliminate corrosion All drive shaft connections utilize splines in lieu of nuisance keys Above Ground Serv