SEPPES steel roller shutter doors industrial rolling shutter door
The difference between composite steel fire shutter and ordinary steel fire shutter is that the curtain plate adopts special mechanical equipment. The main curtain plate and the auxiliary curtain plate are extruded at one time, with smooth surface, no welding and high strength. The middle is filled with smoldering thermal insulation material, which greatly reduces the radiant heat of the back fire surface, has long fire resistance, excellent performance, and can save the water curtain protection system, which can stabilize the partition of the first-class fire-proof area with full road stability The vertical lifting composite steel fire shutter is equipped with electric devices, which can realize automatic and linkage control with the fire center.
The product is inspected according to GB14102-2005 "Fire Roller Blinds", and the fire resistance time is more than 4 hours. The performance and quality of the product meet the inspection standards, and the comprehensive judgment is qualified.
Technical performance:
1. The conditions are formulated according to the standard GB14102-2005. Fire resistance: the fire resistance time is more than 4 hours without losing the complete performance;
2. For the curtain plate with anti-smoke function, the contact surfaces of the inner and outer nose structures connected in series form an arc surface contact, and the arc angle is within the range of 90 degrees;
3. Wind pressure resistance (curtain strength): 120 type curtain B=3M, mid-span deflection less than or equal to 60mm
4. Opening and closing speed: up 4.8m/min, down 4.8m/min
5. Average noise: 55db