Main Category Description shutter doors
Click to open the form is divided into
1. manual shutter. With shutter on the center axis of torsion balance of power, to manually pull the shutter purposes.
2. electric shutter. Turn the motor driven by a dedicated shutter central axis, to shutter switch, when the motor rotates to set upper and lower limit stops automatically. Rolling Door Motor are: plug-roll doors, Australian-style rolling door machine, tubular roll doors, fire doors, inorganic double curtain doors, rapid roll doors machines.
Press the door sheet material into
Inorganic cloth shutter doors, mesh shutter doors, aluminum shutter doors, crystal shutter doors, stainless steel shutter doors, color steel shutter doors, roller shutter doors,
Divided by the installation form
Wall, side walls (or cave, on the outside) two.
Divided by the opening direction
Two kinds of volumes and volumes on the side.
Use is divided into
Ordinary shutter doors, wind shutter doors, fire shutter doors, fast shutter doors, electric Australian-style (Mute) shutter doors
Press the fire rating
According to Lieutenant GB14102 "Steel Rolling general technical conditions" ordinary steel shutter is divided into:
F1 grade refractory time 1.50h
F2 grade refractory time 2.0h
Composite steel shutter is divided into:
F3 grade refractory time 2.50h
F4 grade, refractory time 3.00h
However, the national standard for fire resistance rating GB14102 steel shutter doors, no requirements for fire resistance test fire back surface temperature measurement, nor to fire back surface temperature as a condition for determining the refractory time, mist-type steel emerged in recent years on the market shutter, evaporative mist-type steel shutter, etc., according to the "high regulation" requirement, when used as the partition separating the components, must fire back surface temperature conditions as determining the fire resistance. For the difference between two or more different conditions determine the fire resistance classification of rolling, before the introduction of national standards shutter grading experts "high regulation" management advice: will "fire test methods door and shutter" national standards GB7633 resistance test, to include fire back surface temperature conditions in the determination of requirements, fire resistance ≥3.0h called super shutter, all in the fire resistance test not to fire back surface temperature conditions as the judge referred to ordinary shutter doors.
