Description
Convalve CVGB series Part-turn Gearboxes use worm and worm wheel revolute pairs, with high performance needle roller bearing assembled on both ends of the worm shaft. It ensures the thrust requirement during rotation. It’s in high mechanical efficiency withstands big torque, small size with compact design, and it’s also easy to operate and has reliable self-locking function
Applications
CVGB part turn worm gearboxes are applied to dampers, ball valves, butterfly valves and also other 90° quarter turn valves. CVGB part turn worm gear operator has variety models of hand wheel for optional.
Connect With Valve
The flange connecting to valve is according to NISO5210, ISO5211 or DIN3210 (Customization)
Advantages
- Precision casting ductile iron housing
- Optional output torque, range up to 32000Nm
- High efficient needle roller bearing
- High strength steel input shaft
- Stroke 0°- 90°( ±5°)
- Compact structure
- Grease filled for longer life
- Adjustable stopper (±5°)
- Good seal
Options
- Butterfly valves
- Ball Valves
- Plug Valves
Working Temperature
-20ºC to 70ºC according to material structure
Construction
| Body | Grey cast iron |
| Worm gear | Ductile iron |
| Worm | Steel ASTM1045 |
| Worm shaft | Steel ASTM1045 |
