What is the difference between a flow meter and a water meter?
1. From a functional point of view. The flow meter mainly measures instantaneous flow, which is an instant state. It can understand the usage conditions of each place on site, and can output pulses, 4~20mA, etc.; the water meter mainly has a cumulative function, and generally cannot see the instantaneous flow.
2. From a cost perspective. The manufacturing cost of water meters is relatively low, while the cost of flow meters is generally relatively high.
3. From the quality point of view. Relatively speaking, water meters have poor accuracy, are not resistant to high pressure or high temperature, cannot output linear signals, and cannot participate in the automated control of modern industry, while flow meters can do the above.
4. From the perspective of use. Water meters basically only measure water, not gas. Some liquid media water meters cannot be used; flow meters, gas, liquid (water, oil, turbid liquid, etc.) and other media can be measured, including of course water meters that can measure water.
What is k-factor in flow meter
K-factor is a coefficient calculated by calibrating and comparing the instrument with other measuring devices that meet the accuracy requirements before it is put into use. This coefficient is a fixed value and is the actual coefficient obtained by the flowmeter manufacturer after calibration for each instrument, and has nothing to do with the initial design.
