VIANS VI-S203 80KG Concealed Door Closer – Hydraulic Fire Door Closer with Hold-Open, Adjustable Speed, EN3-4
VIANS VI-S203 80KG Concealed Door Closer – Hydraulic Fire Door Closer with Hold-Open, Adjustable Speed, EN3-4
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The VIANS VI-S203 is a concealed hydraulic door closer designed for fire doors and commercial applications. Installed within the door leaf and frame, it provides controlled and smooth door closing while maintaining a clean appearance and reducing vandalism risk.
Product Parameters
| Model | VI-S203 |
|---|---|
| Product Name | Big Door Closer |
| Lock Size | 205 × 42 × 64 mm |
| Fix Size | 188 × 19 mm |
| Max Door Weight | 20 – 40 kg |
| Max Door Width | 1100 mm |
| Max Opening Angle | 180° |
| Spring Power | EN3–4 |
| Closing Speed Adjustment | Yes |
| Hold Open | Yes |
| Applicable Temperature | -20°C to 55°C |
| Door Type | Left open or right open door |
| Durability Test | 1,000,000 cycles |
| Available Colors | Silver, Black, Milky, Golden |
| Net Weight | 1.9 kg |
| Standard Package | 10 pcs |
| Carton Weight | 19 kg |
| Carton Size | 540 × 320 × 165 mm |
Product Details
- Tested for up to 1,000,000 operating cycles
- Hydraulic oil resistant to low temperatures down to -55°C
- Rocker arm made from high-quality carbon steel
- Double-painted surface with anti-corrosion treatment (96-hour corrosion resistance)
- Optional positioning function
- Optional back-check function
- Precision sealing design to prevent oil leakage
- High-quality die-cast aluminum alloy body with dual-layer protective paint
- Two hydraulic valves controlling two-stage automatic door closing
- Can be installed on the door leaf or door frame
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