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Flow Element i.e. Averaging Pitot Tube (Micro Precision Products make) with DP type Flow Transmitter (Emerson make) installed in Fire Water Service to measure the Pumps discharge flow to the Fire Water System in the Plant. Flow Transmitter is showing less flow while Pumps (Jockey, Diesel Engine and main Electric Pumps) are in service. During normal running of Pumps, Pressure was found to be normal i.e. 11 Kg/Cm2 and Flow Transmitter supposed to show min Flow of 150 m3/Hr and normal Flow of 3000 m3/Hr but it is showing only 8 m3/Hr and 14 m3/Hr respectively.
Checked the Flow Transmitter Impulse Tubing, calibrated the Flow Transmitter and found to be normal. Inspected the Averaging Pitot Tube off line and found to be normal (No choke and no worn out).
Hence we request you to advise to resolve the problem.
Checked the Flow Transmitter Impulse Tubing, calibrated the Flow Transmitter and found to be normal. Inspected the Averaging Pitot Tube off line and found to be normal (No choke and no worn out).
Hence we request you to advise to resolve the problem.