The main reasons for inaccurate measurements by metal tube rotor flowmeters can be summarized into five categories: improper selection, improper installation, changes in media characteristics, equipment failure, and environmental interference. Among these, improper installation and changes in media characteristics are the most common reasons, accounting for more than 70% of actual failures.

Metal tube rotor flowmeters have core advantages in wastewater treatment applications, such as accurate measurement, strong corrosion resistance, and easy installation. They are particularly suitable for treating wastewater environments containing impurities, with low flow rates, and low pressure, and can effectively improve wastewater treatment efficiency and management level.

The installation of metal tube rotor flowmeters must strictly follow three core principles: vertical installation, fluid from bottom to top, and straight pipe sections meeting standards, to ensure measurement accuracy and long-term stable operation.

Metal tube rotor flowmeters (also known as metal float flowmeters) employ the variable area measurement principle, relying on the change in the float’s position within a tapered tube to directly reflect the flow rate. Features: simple structure, wide applicability, resistance to high pressure and high temperature, especially suitable for measuring small-diameter, low-velocity media.

Metal tube rotor flowmeters are flow measurement instruments based on the variable area principle, capable of monitoring small to medium flow rates of liquids, gases, and steam. They measure flow rate by the change in the position of a float within a tapered tube, and transmit the signal via magnetic coupling. Features include: compact structure, wide range ratio (10:1), and easy installation.

The rotor flowmeter has a simple structure, low pressure loss, can be read directly on-site without power supply, has excellent low flow rate measurement performance, is suitable for various media conditions, supports intelligent remote transmission and explosion-proof and corrosion-resistant customization, is easy to install and maintain, and has a high cost performance.

Problems encountered during the use of metal rotor flowmeters can be resolved through three steps: accurate diagnosis of the cause, targeted handling, and standardized preventive measures, ensuring long-term stable operation of the flowmeter and maintaining measurement accuracy.

The acceptance criteria and methods for turbine flow meters mainly follow standards such as JJG 1037-2008 “Verification Procedure for Turbine Flow Meters”. Through technical document review, visual inspection, installation condition verification and performance testing, the accuracy, stability and applicability of the flow meter are ensured to meet the usage requirements.

The commissioning and use of turbine flow meters must strictly follow the installation specifications, commissioning procedures and operating requirements to ensure measurement accuracy and equipment lifespan. This mainly includes key aspects such as pre-installation preparation, correct installation, commissioning and calibration, standardized operation and regular maintenance.