13406621112
Steel fireproof rolling shutter
| Company： | Shandong Zhengzhong Door Industry Co., Ltd. |
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| Contact： | President Zhang |
| Telephone： | +86-13406621112 |
| Telephone： | +86-15725767580 |
| Landline： | +86-0536-3636658 |
| Address： | Dazhangzhuang Village, Dongcheng Street, Linqu County, Weifang City, Shandong Province (100 meters west of the middle section of Xiaxi Road),China |
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Product Introduction
Steel fireproof rolling shutter door is a new generation product that does not require water curtain protection. It is composed of inner and outer double curtain panels, with fireproof protection material filled in the middle. All curtain panels are made of hot-rolled galvanized sheet metal, which has a novel shape, smooth and beautiful inside and outside, strong rigidity, good sealing, and stable fire resistance. It has dual functions of electric and manual opening and closing. And it also has linkage with smoke and temperature alarm systems, which can achieve automatic control in case of fire or be controlled by the fire central control room.
Technical Specifications:
Thermal radiation intensity: 0.39w/cm
Fire resistance limit: ≥ 3 hours
Smoke prevention performance: When the pressure difference is 20Pa, the smoke volume of the curtain plate is less than 0.2m/(m.min)
Wind resistance performance: 82 type curtain board B=3m, mid span deflection ≤ 45mm
Opening and closing speed: The opening and closing speed is 2m/min~7.5m/min, and the self weight descent speed is not greater than 9.5m/min
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