Metal tube rotor flowmeterIt is a commonly used variable area flow measurement instrument in industrial automation process control. It has the characteristics of small size, large detection range, and easy use. It can be used to measure the flow rate of liquids, gases, and vapors, especially suitable for measuring the flow rate of low velocity and low flow media. How to correctly select metal rotor flow meters and additional structures is crucial for the stable operation and measurement accuracy of the system. Therefore, in the selection of flow meters, attention should be paid to the following aspects:
1. For the unstable pressure of the medium at the inlet of the flowmeter, especially for gas measurement, damping structures should be selected to ensure accuracy and service life.
2. For places where the temperature of the measured medium is too high (>220 ℃) or too low, insulation or heat preservation measures should usually be taken for the sensor part of the flowmeter. To ensure the normal working environment temperature of the signal converter indicator, a high temperature indicator should be selected.
3. When the pressure level required for the medium is high and exceeds the standard pressure level, please choose a high-pressure structure when selecting. The high-pressure type uses HG20595-97 RF neck welded steel pipe flange. If other standards are used, please specify when placing an order.
4. For the selection of remote output intelligent metal tube rotor flow meters, it is necessary to choose flow meters that meet the explosion-proof requirements of the usage site; During installation, attention should also be paid to the fastening of the instrument casing and the sealing of the wiring ports after power on, in order to meet the requirements of explosion prevention, protection, and corrosion prevention.
5. For some tested media that require insulation or cooling, a jacketed flowmeter should be selected. The heating or cooling interface of the standard LZ50 intelligent metal tube rotor flowmeter adopts DIN2501 DN15 PN1.6 flange connection. If other flanges or screws are required
Texture connection.