Gearbox for Underground Valve Operation
- Worm Gear-Worm Drive Set: Utilizes a worm gear-worm drive set for efficient performance.
- Compact & Lightweight: Features a small size and light weight for easy handling and installation.
- High Output Torque: Delivers large output torque for robust operation.
- Rational Structure: Engineered with a rational structure for enhanced reliability.
- Easy to Operate: User-friendly operation for convenience.
- Reliable Self-Holding Capacity: Provides dependable self-holding capability to ensure secure operation.
- Ideal for Underground Conduit: Suitable for controlling 90° rotary butterfly valves, ball valves, plug valves, and other valves when laying in underground conduits.
Description
Description
Outline Dimensions Table
| Model | A (mm) | B (mm) | C (mm) | D (mm) | E (mm) | K (mm) | H (mm) | F (mm) | F1 (mm) | E1 (mm) | Q (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 3DD-15/17 | 50 | 111 | 96 | 193 | 60 | 47 | 86 | 210 | 38 | 78 | 130 |
| 3DD-15/75 | 50 | 121 | 106 | 224 | 70.5 | 47 | 86 | 210 | 38 | 98 | 150 |
| 3DD-15/120 | 50 | 136 | 106 | 241 | 78 | 47 | 86 | 210 | 40 | 108 | 170 |
| 3DD-30/250 | 65 | 160 | 135 | 283 | 90 | 63 | 105 | 279 | 50 | 123 | 200 |
| 3DD-30/300 | 65 | 185 | 160 | 320 | 110 | 63 | 123 | 279 | 57 | 140 | 250 |
| 3DD-30/400 | 65 | 185 | 160 | 355 | 125 | 63 | 129 | 279 | 63 | 160 | 278 |
| 3DD-60/800 | 69 | 218 | 160 | 420 | 160 | 78 | 132 | 277 | 66 | 170 | 330 |
Model | Available Opening of Butterfly Valve (Metric System) | Available Opening of Butterfly Valve (British System) | d (mm) | b (mm) | t (mm) | D3 (mm) | h (mm) | D2 (mm) | D1 (mm) | n-Φd1 |
3DD-15/17 | 50~80 | 2″~3″ | 12.7 | 3 | 15.5 | – | – | 57.15 | 92 | 4-M6 |
| 100 | 4″ | 15.9 | 5 | 20.5 | – | – | 69.85 | 92 | 4-M8 |
| 125~150 | 5″~6″ | 19.05 | 5 | 23.65 | – | – | 69.85 | 92 | 4-M8 |
3DD-15/75 | 200 | 8″ | 22.2 | 8 | 25.4 | – | – | 88.9 | 125 | 4-M12 |
| 250 | 10″ | 28.6 | 8 | 35.2 | – | – | 88.9 | 125 | 4-M12 |
| 300 | 12″ | 31.8 | 8 | 39.7 | – | – | 108 | 140 | 4-M12 |
| 350 | 14″ | 31.8 | 8 | 39.7 | – | – | 108 | 140 | 4-M12 |
3DD-30/250 | 400 | 16″ | 33.1 | 10 | 39.9 | – | – | 158.75 | 200 | 4-M18 |
3DD-30/300 | 450 | 18″ | 38.1 | 10 | 47.9 | – | – | 158.75 | 200 | 4-M18 |
3DD-30/400 | 600 | 24″ | 50.8 | 16 | 54.5 | – | – | 215.9 | 278 | 4-M18 |
3DD-60/800 | 700 | 28″ | 55 | 16 | 63.6 | – | – | 254 | 300 | 8-M16 |
| 800 | 32″ | 55 | 16 | 63.6 | – | – | 254 | 300 | 8-M16 |
Technical Parameters
| Model | Torque (N·m) | Ratio | Input Torque (N·m) | Weight (kg) | Remarks |
|---|---|---|---|---|---|
| 3DD-15/17 | 170 | 203:1 | 9 | 17 | |
| 3DD-15/75 | 750 | 245:1 | 30 | 21 | |
| 3DD-15/120 | 1200 | 280:1 | 42 | 23 | |
| 3DD-30/250 | 2500 | 384:1 | 43 | 41 | |
| 3DD-30/300 | 3000 | 352:1 | 57 | 57 | |
| 3DD-30/400 | 4000 | 416:1 | 64 | 65 | |
| 3DD-60/800 | 8000 | 754:1 | 71 | 88 |
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