Pneumatic control circuit for air distribution systems
作者： Raymond H. Dean
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摘要: A pneumatic control circuit for controlling the discharge of conditioned air from an distribution system. The is arranged to apply supply pressure inflatable bladder which controls a ventilation duct. diaphragm bleeding under influence pressure, thermostat, velocity sensor at duct outlet and plurality selectively sized orifices. compensates automatically variations in main so that function independent pressure.
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