Fireproof window hardware is one of the methods of building fireproof division, commonly used in fireproof wall, stair well entrance or conduit well opening place, the demand can keep smoke, fire. Fireproof window hardware plays an important role in avoiding the diffusion of smoke and fire and reducing the loss.
Fire window hardware according to the state of the open square is divided into often closed fire window hardware and often open fire window hardware. Usually close the fireproof window hardware usually in the effect of the door closure device in the closed state. Therefore, when the outbreak of fire can play to obstruct fire smoke manyan; Often open fire window hardware usually in the effect of the door closure in the open state, when the outbreak of fire, active release switch initiative, fire door closure in the effect of the door closure and alignment device closed.
Fireproof window is to point to use steel window frame, steel window sash, fireproof glass to make up, can rise cut off and obstruct the window that fire extends.
No less than 1.5 hours for class A Windows, no less than 1 hour for class B Windows, and no less than 0.5 hours for class C Windows.
Aluminium alloy fireproof window hardware is to point to use aluminium alloy steel window frame, aluminium alloy steel window sash, fireproof glass to make up, can rise cut off and obstruct the window of fire extension.
(1) The window frame structure shall be steel structure or wood structure with certain strength enough to ensure the integrity and stability of members.
(2) The steel structure and layering can be galvanized steel plate or stainless steel plate. Its material selection criterion conforms to 5.1 rules of GB12955 general Technical Conditions of Steel Fireproof Window hardware.
(3) The data selection specification of wood structure and lay-bar shall conform to the 5.1.1 rule in GB14101 "General Technical Conditions of Wood Fireproof Window Hardware".
(4) Non-combustible materials should be selected for filling materials inside steel and wood structures.
(5) Fire - proof glass can be selected does not affect the fire - proof performance of the test qualified goods. The transmittance of glass is not less than 75% of the average plate glass with the same number of layers.
(6) The sealing data between the structure and the fireproof glass should be non-flammable, which can play the effect of fire prevention and smoke separation in case of fire.
(7) Fireproof window hardware accessories should be qualified after testing the type of matching goods.