Are the Piro-Flowgauges more or less accurate than the Hall or Collins Tubes?
It is best said that the Hall and Collins-Style tubes are more accurate across a wide variety of conditions. If the reading is taken in an ideal location (10 diameters downstream of an obstruction, and 4 diameters upstream), the readings of all the instruments will be virtually identical, within the stated accuracy of “2%. But the Piro-Flowgages are a single-point sampling meter, while the Hall Tube and Collins-Style tube take readings across the inside diameter. In less than ideal conditions, the Hall and Collins-Style meters are more accurate.
Related Questions
- Can the Hall and Collins Tubes be inserted into pressurized lines for a hot test (the water pump is not turned off)?
- What is the difference between the Piro-Flowgauges (Piro-Velocity Gauge) and the Hall Tube or the Collins Tube?
- Are the Piro-Flowgauges more or less accurate than the Hall or Collins Tubes?
