The fireproof valve is installed in the central air conditioning duct system, the working principle is to use the valve installed on the easy melting alloy temperature control, the use of gravity and the role of spring mechanism, when the fire occurs, the flame invasion of the duct, On the fusible alloy melting, or make the memory alloy deformation occurs so that the valve automatically shut down for the duct and fire partition through the occasion. Installation and construction process need to pay attention to the following points.
1, Fire can be with the fan, exhaust fan interlock.
2, The valve operating mechanism side should be not less than 200mm of the net space for maintenance.
3, Before installing the valve must check the valve operating mechanism is intact, action is flexible and effective.
4, The fire damper
should be installed in the wall or the wall adjacent to the pipe section, the fire partition on both sides of the wall from the wall surface should not be greater than 200mm, fire on both sides of the 2.0m range of pipes and insulation materials Should use non-combustible materials.
5, Fire ham should be equipped with a separate hanger to prevent the occurrence of fire when the pipeline deformation affect its performance.
6, The fuse of the fuse should be mounted on the side of the fire against the larger side.