Normal
Guys, the second picture on page one of this thread under new design looks like a Peto tube. It measures a differential pressure and that measurement gets converted to a flow measurement.I will suggest that it’s a flow measurement issue, not a pressure issue. If the pipes are larger in diameter, the velocity will be less for the same flow. Less velocity on a Peto tube would result in a lower differential. The computer see that as low flow. The computer/sensor is not calibrated for the larger pipes, so it shows a low flow when it’s really not. The solution if this is the case is, recalibrate the computer for the larger pipes.Also, just for reference, a Peto tube should be in the center of the pipe and have at least 3 pipe diameters of straight pipe in front of it. That accuracy probably not needed here. AFE should have realized this error.I can’t tell by the pictures, but is it possible that the tube is 180 off?
Guys, the second picture on page one of this thread under new design looks like a Peto tube. It measures a differential pressure and that measurement gets converted to a flow measurement.
I will suggest that it’s a flow measurement issue, not a pressure issue. If the pipes are larger in diameter, the velocity will be less for the same flow. Less velocity on a Peto tube would result in a lower differential. The computer see that as low flow. The computer/sensor is not calibrated for the larger pipes, so it shows a low flow when it’s really not. The solution if this is the case is, recalibrate the computer for the larger pipes.
Also, just for reference, a Peto tube should be in the center of the pipe and have at least 3 pipe diameters of straight pipe in front of it. That accuracy probably not needed here. AFE should have realized this error.
I can’t tell by the pictures, but is it possible that the tube is 180 off?
