Everyone knows the importance of fire prevention valves. So how to install the firewood valve is divided into positive and negative, and what are the precautions for the installation of fire valve? Lets learn with Xiaobian below!1. The fire prevention valve is installed in the central air -conditioning airway system. The working principle is the temperature control of the more likely to melt the alloy. Use gravity effects and the role of spring mechanism to close the valve.When the fire occurs, the flame invades the air duct, the high temperature causes the melting alloy to melt on the valve, or the memory alloy will cause a variable and the valve will be automatically closed, which is used for the occasion of the air duct and the fireproof partition.2. The valve body can be installed vertically or horizontally. No matter how the blades are installed, the blades must be parallel to the ground. If the blades cannot be parallel to the ground, they must be declared.3. Tobacco -fire prevention valve should be installed in the pipe section that is close to the wall or floor. The fire valve on both sides of the fire -resistant separation wall should not be greater than 200mm from the wall.A separate tributary rack should be set up at the firewood valve to set up a firewood valve. The insulation materials are used in the range of 2.0m on both sides of the firewood valve.When the fire valve is installed, the installation site is set up to facilitate maintenance.5. The surface of the connection pipe between the 3C firewood valve and the firewall shall be available on the surface of the pipeline and the heat insulation layer.6. The vertical row of the bathrooms, bathrooms and kitchens of public buildings shall be set up on the support of the tube to set up a fire valve.