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Part-Turn Manual Gear Operator

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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 Service Capacites and Ratings Model Size Max Torque w/ 80lb Handwheel Rim Pull Maximum Bore Turns to Open (ft-lb) (N-m) (inch) (mm) W020-B 1,125 1,525 2.00 51 17 WO40-B 2,250 3,051 3.25 83 17 WO42-A 2,650 3,593 3.25 83 34 WO51-A 5,100 6,915 4.00 102 43 WO52-A 7,650 10,372 4.00 102 64 WO53-A 8,000 10,847 4.00 102 70 WO54-A 8,000 10,847 5.00 127 85 WO64-B 17,730 24,039 5.50 140 148 WO67-B 20,700 28,065 7.00 178 173 WO68-B 29,000 39,319 7.00 178 243 WO74-B 32,400 43,929 7.00 178 270 WO76-A 56,500 76,604 8.00 203 630   Buried Service Capacites and Ratings Model Size Max Torque w/ 150 (ft-lb) Input Torque Maximum Bore Turns to Open (ft-lb) (N-m) (inch) (mm) WB20-B 2,200 2,983 2.00 51 17 WB40-B 2,815 3,817 3.25 83 17 WB5A-A 4,800 6,508 4.00 102 32 WB52-A 9,600 13,016 4.00 102 64 WB54-A 10,500 14,236 4.00 102 70 WB65-B 22,000 29,828 5.50 165 148 WB67-B 26,000 35,251 7.00 178 173 WB74-B 40,500 54,911 8.00 203 270 WB75-B 64,300 87,179 8.00 203 465

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