I am building a simple flow loop to test flow capacity (water) thru valves. Is there a "building flow loops for dummies" book available? Is there a way to calibrate the system (flowmeter, pipes, pressure transducers) to ensure accuracy?A good response would require more information including the flow rate, existing system details including the flow measurement technique used, etc.Most flow measurement needs a "fully developed flow profile", thus typically requires a straight run with the measurement upstream of the valve. What is the source of the noise? Perhaps you have a bad pump, flashing across an orifice plate, fluttering check valve, etc. Other likely problems include swirl that affects the flow meter. Consider eliminating the noise in the process system not only eliminating your measurement of the noise.A liquid meter prover would integrate the flow rate measured over a period of time while pumping into a container. At the end of the run, check the flow totalizer against the calibrated volume.

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