Tiếng ViệtCWG Series Worm Gearboxes: Flexible & Economical Solutions for 90° Rotary Valves
The CWG Series is a line of worm gearboxes specifically designed for general industrial applications, particularly in water supply, drainage, and the metallurgical industry. It is the optimal choice for operating quarter-turn (90°) valves such as butterfly valves and ball valves.
The product not only excels as a manual operator but is also easily interfaced with Electric Actuators to upgrade to an automated control system.
Key Highlights of the CWG Series
1. Flexible Design – Optimized Installation
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Double Bushing Structure: Allows technicians to easily change the keyway position relative to the valve shaft, making assembly faster and more precise.
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Full Customization: Users can select the rotation direction and input shaft position to best fit the actual installation space.
2. Durability & Absolute Protection
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IP67 Standard: The device is completely dust-tight and waterproof (temporary immersion), ensuring stable operation in outdoor environments or damp valve pits.
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Double Sealing: A dual-layer sealing structure at the terminal box provides absolute protection for internal components against moisture ingress.
3. High-Precision Calibration
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±5° Adjustable Stopper: This feature allows for precise fine-tuning of the stopping points at both ends of the stroke (fully closed and fully open), ensuring valve tightness and safety.
Practical Applications
The CWG Series is widely trusted in:
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Water Industry: Pumping stations, wastewater treatment systems, and municipal water supply networks.
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Heavy Industry: Steel mills, hydraulic systems, and production lines.
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Automation: Serving as a secondary reduction gear for electric actuators like the SMB and L120 series.
Detailed Technical Specifications
| Model | Allowable Torque (N·m) | Gear Ratio (Electric/Manual) | Max Valve Shaft (mm) | Flange (ISO 5211) |
| CWG-00 | 1,200 | 40:1 / 80:1 | 36 | F12 |
| CWG-10 | 2,000 | 44:1 / 88:1 | 46 | F14 |
| CWG-20 | 2,800 | 48:1 / 120:1 | 60 | F16 |
| CWG-30 | 4,300 | 52:1 / 130:1 | 75 | F16 |
| CWG-40 | 10,400 | 56:1 / 420:1 | 95 | F25 |
| CWG-60 | 32,800 | 64:1 / 768:1 | 140 | F35 |
Why Choose the CWG Series?
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Economical: Low investment cost with high transmission efficiency.
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Compact: Saves installation space compared to other gearboxes of the same capacity.
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Easy Upgrades: Ready to convert from manual to electric operation at any time using standard ISO flanges.