The metal tube rotameter (also known as the variable area flowmeter) is a flow instrument based on the variable area measurement principle, mainly used for continuously measuring the instantaneous flow of liquids, gases, or steam. Its core feature is the use of a metal tube body, making it suitable for harsh working conditions such as high – temperature, high – pressure, and corrosive media.
Working Principle of Metal Tube Rotameter
1. Structural Components
- Conical metal tube: Designed with an inverted conical interior.
- Float: An internally – placed magnetic float that moves up and down with changes in flow rate.
- Indicator: Converts the position of the float into a flow reading through a magnetic coupling system (can be equipped with a remote – transmission signal output).
2. Working Process
When the fluid passes through the conical tube from bottom to top, the float suspends under the balance of fluid dynamic force and gravity. When the flow rate increases, the float rises, and the annular flow area increases until a new equilibrium position is reached. The position of the float has a linear relationship with the flow rate.、
Featured Applications of Metal Tube Rotameters
Oil & Gas Industry:
Metal tube rotameters are widely used in oil and gas refineries to monitor the flow of crude oil, natural gas, and other hydrocarbons. Their ability to handle high pressures makes them ideal for pipelines, wellheads, and other demanding environments.
Chemical Processing:
Resistant to corrosion and capable of withstanding harsh conditions, metal tube rotameters are essential for monitoring the flow of chemicals and process liquids in chemical plants.
Wastewater Treatment:
In wastewater treatment facilities, these rotameters accurately measure the flow of water and chemicals for processes such as disinfection, pH control, and chemical dosing.
Pharmaceutical Industry:
Used in controlled production environments, metal tube rotameters help monitor the flow of solvents, water, and other critical process fluids, ensuring precision and safety in pharmaceutical manufacturing.
Food & Beverage Industry:
Sanitary-grade metal tube rotameters are applied in food and beverage production lines to measure the flow of ingredients, additives, and other process fluids while maintaining hygiene standards.
Benefits of Using Metal Tube Rotameters
- Durable and Long-Lasting: Built to withstand harsh industrial conditions.
- Chemical Resistant: Handles corrosive fluids safely and reliably.
- Pressure & Temperature Resilient: Performs accurately under high pressure and extreme temperatures.
- Reliable with Opaque Fluids: Provides accurate measurements even when fluids are not transparent.
- Explosion-Proof Options: Available models designed for hazardous environments.
- Clear LCD Display: Simultaneously shows instantaneous flow, cumulative flow, and percentage of the light column.
- Remote Transmission & Alarms: Easily set upper and lower limit alarms for flexible monitoring.
- HART Protocol Compatible: Works seamlessly with standard HART software and handheld operators.
- Versatile Installation: Multiple mounting options adapt to different working conditions.
- High Accuracy & Repeatability: One-time roll-formed sensors ensure precise and consistent measurements.
Why Choose SHLEES as Your Metal Tube Rotameter Supplier
As a leading rotameter manufacturer, SHLEES stands out by offering a complete, integrated approach to metal tube rotameters—from R&D and manufacturing to quality control and after-sales service.
Integrated R&D & Manufacturing
Our in-house research and production capabilities ensure innovative designs, precise engineering, and consistent product quality, tailored to the unique needs of industries such as chemical, oil & gas, wastewater, pharmaceuticals, and food & beverage.
Strict Quality Control
Each rotameter undergoes rigorous testing to guarantee accuracy, durability, and reliability, even in demanding or harsh environments.
Comprehensive After-Sales Service
SHLEES provides dedicated support from installation guidance to maintenance, ensuring your flow measurement solutions operate smoothly throughout their lifecycle.
Choose SHLEES as your Metal Tube Rotameter Supplier for high-quality metal tube rotameters backed by R&D expertise, strict quality assurance, and attentive service.
