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  1. Ramin_TDot

    Loud Resonating Bellow Hose/Tube

    @LittleInch Yes, currently I am using the voltage to regulate the fan speed. Implementing a PWM control is not possible at this stage. In terms of the fan operation, would a PWM not average out the voltage and be comparable to using a lower speed through voltage control? If a PWM and voltage...
  2. Ramin_TDot

    Loud Resonating Bellow Hose/Tube

    Thank you for everybody's responses so far. I've hopefully addressed them in some way below: Images of my setup and KF25 Hose: https://imgur.com/a/XEP8JFF Velocity I don't have that information. Could look into it. No the tube does not move its only a loud audible noise. Supported/fixed...
  3. Ramin_TDot

    Loud Resonating Bellow Hose/Tube

    I am wondering if anyone can provide any insight into an issue I'm dealing with. I have a KF25 bellow hose (corrugated) that is 1 meter long which is mounted to a blower fan in suction (about 57 CFM, 5inH2O pressure)to one end and the other end is fixed through a KF25 coupling. The fan is 24...

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