Fluid flow controller

摘要: A fluid flow controller is disclosed particularly adapted for maintaining a variable value constant volume through conduit supplying to zone. spring biased vane disposed across the diameter of provide motion signal proportional average pressure conduit. The from and transducer within zone which being conducted responsive an environmental parameter in are connected assembly control actuator moving damper position maintain controlled balance. This continuation-in-part application Ser. No. 711,066 filed Aug. 2, 1976, now abandoned.