Fire Resistant Rolling Shutter / Components
Fire Resistant Rolling Shutter |
Fire Rolling Shutters of Thai Rolling Shutters Co., Ltd. have a curtain of interlocking slat, role formed from hot dipped galvanized steel with bonderizing process and baked on gray enamel as the last process.
We have 4 numbers of galvanized steel as follow :
1. Galvanized steel no. 22, thickness 0.7 mm.
2. Galvanized steel no. 20, thickness 0.9 mm.
3. Galvanized steel no. 18, thickness 1.2 mm.
4. Galvanized steel no. 16, thickness 1.6 mm.
We choose galvanized steel no.16 to make fire rolling shutters for the reason of highest strength which is able to resist high temperature for longest time among others.
Normally, rolling shutter is able to resist high temperature, flame or fire for a while because of its high melting point. The difference of resistant time depends on thickness of steel. Although rolling shutter is able to resist high temperature of fire for a while, it cannot stand for long time. Otherwise, steel is heat leader rapidly from the room to another room.
Thai Rolling Shutter Co., Ltd. ,then, produced Fire Resistant Rolling Shutter which can be qualify as fire resistant door on the exit way. It contains Rock Wool which is insulator of heat to delay high temperature of fire as much as possible.
Our Fire Resistant Rolling Shutter is able to resist fire for 3 hours. Approved by TISTR (Thailand Institution of scientific and Technological Research). Results of testing / analysis are as follow : "The fire resistant rolling shutter after test at temperature 800 oC in 3 hours are not change in construction and the operation is in normal condition."
Components of Fire Resistant Rolling Shutter |
Slat
Each slat is roll formed from hot dipped galvanized steel no.16, thickness 1.6 mm. Jumbo slat, 10 cm. wide, contains rock wool within each slat.We choose jumbo slat for the reason of reducing interlocking between each slat and containing more rock wool in each slat than single slat (single slat is 7 cm. wide).
Rail
The rail is made of galvanized steel no.16, thickness 1.6 mm., size 4.50 cm. x 7.00 cm. This rail is special made. It is sealed by weather seal rubber in between both sides of rail. This weather seal will be attached to rolling shutter slat during operating up and down. We use weather seal to protect fire flame and smoke from 3 part of fire resistant rolling shutter which are rails, under box of shutter and under the bottom bar.
Box of Shutter
Box of shutter is made of galvanized steel no.24, thickness 0.55 mm., size at least 60 cm. x 60 cm. The size of the box depends on width and height of shutter. If there are huge shutter, we would like to use bigger shaft which requires bigger box of shutter.
Shaft
Fire Resistant Rolling Shutter requires special shaft with at least 4 inches diameter. The 6 inches and 8 inches diameter shaft will be selected according to shutter size.
Spring
Spring is neccessasy for reducing handle weight.We use high tensile strength spring no.0 (number. zero) that was made of high carbon steel. We use SWC grade spring which contain highest carbon which is high flexibility and does not fragile.
Electric Motor
Electric motor operated is suitable for Fire Resistant Rolling Shutter. This heavy shutter requires at least 1 HP. The suitable horse power will be selected to match size and wieght of the shutter.
Fire Resistant Rolling Shutter / Components
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