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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 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

DocumentationFeatures & BenefitsSpecifications
 Product & Service Documentation
 Brochures
 EIM Product Selection Guide A4
4 MBpdfJune 2013
English
 EIM Product Selection Guide US
4 MBpdfAug 2015
English
 EIM 产品概览
5 MBpdf
English
 Data Sheets - Bulletins - Catalogs
 EIM Customer Listing
187 KBpdf
English
 Drawings & Schematics
 Manual Gear Size WB30-B - Part-turn Gear Outline
231 KBpdf
English
 Manual Gear Size WB30-B - Part-turn Gear Outline (dxf)
1 MBdxf
English
 Manual Gear Size WB40-B - Part-turn Gear Outline
228 KBpdf
English
 Manual Gear Size WB40-B - Part-turn Gear Outline (dxf)
1 MBdxf
English
 Manual Gear Size WB41-B - Part-turn Gear Outline
72 KBpdf
English
 Manual Gear Size WB41-B - Part-turn Gear Outline (dwg)
874 KBdwg
English
 Manual Gear Size WB52-A - Part-turn Gear Outline
303 KBpdf
English
 Manual Gear Size WB52-A - Part-turn Gear Outline (dxf)
1 MBdxf
English
 Manual Gear Size WB54-A - Part-turn Gear Outline
307 KBpdf
English
 Manual Gear Size WB54-A - Part-turn Gear Outline (dxf)
1 MBdxf
English
 Manual Gear Size WB5A-A - Part-turn Gear Outline
303 KBpdf
English
 Manual Gear Size WB5A-A - Part-turn Gear Outline (dxf)
1 MBdxf
English
 Manual Gear Size WB64-B - Part-turn Gear Outline
301 KBpdf
English
 Manual Gear Size WB64-B - Part-turn Gear Outline (dxf)
1 MBdxf
English
 Manual Gear Size WB65-B - Part-turn Gear Outline
304 KBpdf
English
 Manual Gear Size WB65-B - Part-turn Gear Outline (dxf)
1 MBdxf
English
 Manual Gear Size WB67-B - Part-turn Gear Outline
304 KBpdf
English
 Manual Gear Size WB67-B - Part-turn Gear Outline (dxf)
1 MBdxf
English
 Manual Gear Size WB74-B - Part-turn Gear Outline
294 KBpdf
English
 Manual Gear Size WB74-B - Part-turn Gear Outline (dxf)
1 MBdxf
English
 Manual Gear Size WB75-A - Part-turn Gear Outline
308 KBpdf
English
 Manual Gear Size WB75-A - Part-turn Gear Outline (dxf)
1 MBdxf
English
 Manual Gear Size WO10-B - Part-turn Gear Outline
292 KBpdf
English
 Manual Gear Size WO10-B - Part-turn Gear Outline (dxf)
1 MBdxf
English
 Manual Gear Size WO20-B - Part-turn Gear Outline
293 KBpdf
English
 Manual Gear Size WO20-B - Part-turn Gear Outline (dxf)
1 MBdxf
English
 Manual Gear Size WO30-B - Part-turn Gear Outline
294 KBpdf
English
 Manual Gear Size WO30-B - Part-turn Gear Outline (dxf)
1 MBdxf
English
 Manual Gear Size WO40-B - Part-turn Gear Outline
292 KBpdf
English
 Manual Gear Size WO40-B - Part-turn Gear Outline (dxf)
1 MBdxf
English
 Manual Gear Size WO41-A - Part-turn Gear Outline
315 KBpdf
English
 Manual Gear Size WO41-A - Part-turn Gear Outline (dxf)
1 MBdxf
English
 Manual Gear Size WO42-A - Part-turn Gear Outline
317 KBpdf
English
 Manual Gear Size WO42-A - Part-turn Gear Outline (dxf)
1 MBdxf
English
 Manual Gear Size WO51-A - Part-turn Gear Outline
336 KBpdf
English
 Manual Gear Size WO51-A - Part-turn Gear Outline (dxf)
1 MBdxf
English
 Manual Gear Size WO52-A - Part-turn Gear Outline
336 KBpdf
English
 Manual Gear Size WO52-A - Part-turn Gear Outline (dxf)
1 MBdxf
English
 Manual Gear Size WO53-A - Part-turn Gear Outline (dxf)
1 MBdxf
English
 Manual Gear Size WO54-A - Part-turn Gear Outline
342 KBpdf
English
 Manual Gear Size WO55-B - Part-turn Gear Outline
334 KBpdf
English
 Manual Gear Size WO55-B - Part-turn Gear Outline (dxf)
1 MBdxf
English
 Manual Gear Size WO64-B - Part-turn Gear Outline
319 KBpdf
English
 Manual Gear Size WO64-B - Part-turn Gear Outline (dxf)
1 MBdxf
English
 Manual Gear Size WO67-B - Part-turn Gear Outline
317 KBpdf
English
 Manual Gear Size WO68-B - Part-turn Gear Outline
321 KBpdf
English
 Manual Gear Size WO68-B - Part-turn Gear Outline (dxf)
1 MBdxf
English
 Manual Gear Size WO74-B - Part-turn Gear Outline
324 KBpdf
English
 Manual Gear Size WO74-B - Part-turn Gear Outline (dxf)
1 MBdxf
English
 Manual Gear Size WO76-A - Part-turn Gear Outline
327 KBpdf
English
 Manual Gear Size WO76-A - Part-turn Gear Outline (dxf)
2 MBdxf
English
 Outline Drawing - Manual Gear Size WB20-B - Part-turn Gear, Buried Service
369 KBpdf
English
 Outline Drawing - Manual Gear Size WB20-B - Part-turn Gear, Buried Service (dxf)
1 MBdxf
English