The discharging of the air shutter reduces labor strength of operating workers.
主风机出料降低了操作工人的劳动强度。
Fixed or adjustable gas orifice, primary air shutter and mounting boss. Heavy cast iron construction. Simple to install and to maintain.
固定的或可调的燃气孔板，主空气调节挡板，重铸铁结构，容易安装和维护都是该产品的特点。
Through the comparison of the performances of various domestic air shutter for boilers, the principles and specific conditions for selecting structure of air shutter of boilers were presented.
并通过对国内制造的锅炉调风器性能指标的对比，提出锅炉调风器结构形式的选择原则与具体条件。
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