Helical Gear Box
The series is a 90° (+ 5 degree adjustable) part of the rotary manual drive device. Suitable for ball valves, butterfly valves, plug valves and other types of valves.The box is made of nodular cast iron with novel style and beautiful appearance. Flange all using ISO 5211 international standards, and the valve is more convenient. Ambient temperature
| Model | YZQ-68S | YZQ-178 | YZQ-275 | YZQ-525 | |||||||||
| Technical Parameters | |||||||||||||
| Ratio | 136:1 | 178:1 | 275:1 | 525:1 | |||||||||
| Input torque N.m | 130 | 150 | 150 | 150 | |||||||||
| Output torque Nm | 4500 | 7000 | 9000 | 18000 | |||||||||
| M.A.±10% | 34.5 | 47 | 60 | 120 | |||||||||
| Butterfly valve DN | 600-650 | 700-800 | 900-1100 | 1200-1300 | |||||||||
| Ball-valve DN | 350 | 400 | 450 | 500-600 | |||||||||
| Connection Size | |||||||||||||
| Flange | F16 | / | F20 | / | / | F25 | F16 | F25 | F25 | F30 | F25 | F30 | |
| (D) | 210 | 255 | 255 | 255 | 255 | 300 | 210 | 300 | 300 | 350 | 350 | 350 | |
| PCD | D0 | 165 | 197 | 200 | 216 | 225 | 254 | 165 | 254 | 254 | 298 | 254 | 298 |
| N-H-DP | 4xM20-30 | 8xM16-24 | 4xM20-30 | 8xM16-24 | 4xM20-30 | 8xM16-24 | 8xM16-24 | 8xM20-30 | 8xM16-24 | 8xM20-30 | |||
| (D2) | 130 | 160 | 150 | 160 | 200 | 130 | 200 | 200 | 230 | 200 | 230 | ||
| F (f1) | 5(3) | 5(3) | 5(3) | 5(3) | 5(3) | 5(3) | 5(3) | 5(3) | 5(3) | 5(3) | 5(3) | ||
| Φd | 70 | 75 | 95 | 110 | |||||||||
| Install-height | 107 | 125 | 146 | 157 | |||||||||
| handwheel | 600 | 600 | 600 | 600 | |||||||||
| Appearance Size | |||||||||||||
| A | 343 | 393 | 465 | 546 | |||||||||
| B | 252 | 266 | 307 | 370 | |||||||||
| E | 126 | 126 | 138 | 169 | |||||||||
| F | 264 | 286 | 335 | 374 | |||||||||
| H1 | 99 | 117 | 137 | 148 | |||||||||
| h | 59 | 61 | 69 | 76 | |||||||||
| L | 104 | 179 | 209 | 249 | |||||||||
| L1 | 137 | 128.5 | 159 | 84 | |||||||||
| Q | 245 | 248 | 264 | 350 | |||||||||