The fire damper is a valve used to block the passage of smoke and flames from the fire zone, and to meet the requirements for fire resistance stability and integrity within a time limit. In order to reduce the loss cause

When the surface temperature of the air outlet is lower than the nearby air dew point temperature, condensation and condensation will occur on the air conditioning surface. When the humidity in a room in a hot area in su

Fan is a kind of general mechanical equipment, which has a wide range of applications. Sales in various industries such as electric power, mining, machinery, metallurgy, chemical industry, etc. cannot be separated from f

Air valve refers to the air volume air valve, which is an indispensable air conditioning terminal accessory in the ventilation, air conditioning, and air purification engineering of industrial and civil buildings. It is