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Flow Meters that can replace valves?

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  • Flow Meters that can replace valves?

    Is anyone aware of flow meters that can replace tri clamp butterfly valves that perform double duty of measuring fluid flow through the pipe and also regulating the flow (like the valve did).

  • #2
    I doubt you will find anything, flow meters need to be a minimum distance away from any turbulence creating sources. You could install ultrasonic transducers and use an ultrasonic flow meter on your existing setup.

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    • #3
      Originally posted by jebzter View Post
      I doubt you will find anything, flow meters need to be a minimum distance away from any turbulence creating sources. You could install ultrasonic transducers and use an ultrasonic flow meter on your existing setup.
      Thanks.

      I just found a company website that purports to sell ultrasonic flow meters that measure water as well as fluids with bubbles or suspended solids. The biggest issue is the expense of the trades work and downtime expense of cutting into current pipe to insert flow meters. :-(

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      • #4
        Never seen a double duty sanitary. Usually they would just put the valve right after the flow meter for the turbulence mentioned below. I can’t imagine a combined unit (if it exists) would be anywhere close to cost effective. There are liquid flow regulators for other industrial applications, but I’m not sure these would work like you are looking for anyways.

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        • #5
          No. This isn't normal.

          For on-off control of a valve, it's pretty straightforward. Use pneumatic actuator to open or close the valve. For regulating you need much more equipment to do it right. First you need a valve that is capable of control. Usually NOT a butterfly, gate, or ball valve, but instead a diaphragm or globe valve. Then you need an actuator that can position the valve at the point of control. Then you need a positioner working with the controller. Not to mention that you need a PID controller and the skills to program it correctly so that it works right. It's not easy or it would be done routinely in small, inexpensive breweries. I usually put one on steam lines to cookers/mash mixers where it is important to get perfect temperature. Everywhere else is done without control valves.
          Phillip Kelm--Palau Brewing Company Manager--

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