Fluid Flow Monitoring

Question: We recently up-graded our production line during a plant modernization.


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Question:

We recently up-graded our production line during a plant modernization. Our new painting line works well except that we sometimes have a blocked spray nozzle condition. When this happens it is often not noticed until quite a bit of ware is painted, baked and inspected. Is there some way that the operator can detect when an automatic spray nozzle is not operating due to blockage? The flow rates are 20–30 cu centimeters per second. Can such a system be tied into an alarm that will alert the operator as to a problem? D.M.

Answer:

There are flow meters available that will send feedback signals to a process controller for monitoring fluid flow. They will also monitor fluid flow in spray guns, in power washer spray nozzles and other processing equipment. These devices are available from the suppliers listed under Flow Meters, liquid, on Products Finishing 2005 Directory and Technology Guide.

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