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Function
1. Electric operation, manual pull-ring operation (instantaneous opening); fuse operation – instantaneous shutdown (secondary action);
2. Manual Reset (Off)
3. Adjustable torque (3 levels: strong, medium, weak).
Technical Specifications
| Model | KGS-1H and KGD-FR (combined) |
| Air damper spindle | Diameter Φ12–Φ12.7 mm, with 180 mm exposed valve body. |
| Action Method | Electric/manual pull ring open, fuse (280°C) closed. |
| Action Time | Instantaneous |
| Torque of action | 3.5–5.5 N·m (3 adjustable levels) |
| Rotation direction | Open motion – counterclockwise rotation; Closing action – rotate clockwise. |
| Reset Method | Manually reset (close) using the handle. |
| Rated Voltage | DC 24V ±10% |
| Rated current | 0.3A |
| Rated Current | Continuous Power Supply (Automatic Cut-off Mode) |
| Confirm signal | Output at the terminal during operation |
| Contact capacity | DC 30V, 2A |
| Surface Treatment of Materials | Galvanization(Gl Sheet) |
| Weight | 2.8 kg (including accessories) |
| Operating temperature | -10℃~50℃ (no freezing, no condensation) |
| Operating environment humidity | Relative humidity below 85% |
Product Keywords： KGS-1H+KGD-FR Smoke Exhaust and Fire Damper Secondary Actuator (Manual Reset Type)
KGS-1H+KGD-FR Smoke Exhaust and Fire Damper Secondary Actuator (Manual Reset Type)
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We focus on the R&D and manufacturing of high‑end products such as large forged components for nuclear power, ultra‑large rotors, large‑diameter, thick‑walled shells for chemical equipment, tube sheets, ultra‑supercritical forgings, and forgings for high‑pressure hydrogen storage vessels, providing core support for China’s major equipment and high‑end manufacturing.
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Pioneering and innovation are the spirit of Hua Hui; high quality, excellent reputation, and putting customers first have always been the principles our company adheres to. We welcome both new and existing customers to choose and patronize us.