Rotameter (Plastic Variable Area Flowmeter)
The plastic tube rotameter offers lightweight design, corrosion resistance, and reliable liquid flow measurement for chemical, pharmaceutical, and food industries.
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Rotameter (Metal Tube Variable Area Flowmeter)
The Rotameter (Metal Tube Variable Area Flowmeter) is a compact and versatile flowmeter for accurate measurement of liquids, gases, and steam, ideal for low-flow and small-diameter pipelines. Widely used in petrochemical, steel, power, metallurgy, food, pharmaceutical, and water treatment industries, it offers high reliability, performance, and cost-effectiveness.
Meter Diameter (DN)： DN15, DN25, DN50, DN80, DN100, DN150 (other sizes negotiable)
Flow Range： Liquid 1.0–150,000 L/h, Gas 0.05–3000 m³/h
Accuracy： 1.5% F.S., 1.0% F.S. (special)
Pressure Rating： DN15–DN50: 4.0 MPa (max 20 MPa), DN80–DN150: 1.6 MPa (max varies by size)
Medium Temperature： Standard -30℃–120℃, High 120℃–350℃
Power Supply： 24 VDC (12–36 VDC), 220 VAC
Output Signal： 4–20 mA DC (two-wire), optional HART protocol
Ambient Temperature： Local display -40℃–120℃, Remote display -30℃–60℃
Description
Overview of Rotameter (Metal Tube Variable Area Flowmeter)
The Rotameter (Metal Tube Variable Area Flowmeter) is a widely used variable area flow measurement instrument designed for accurate flow monitoring of liquids, gases, and steam, particularly suitable for low-flow and small-diameter pipeline applications. Compact, reliable, and cost-effective, it is widely applied in petrochemical, steel, power, metallurgy, light industry, food, pharmaceutical, and water treatment industries, ensuring precise process control and measurement performance.
Features of Rotameter (Metal Tube Variable Area Flowmeter)
Versatile Measurement: Suitable for liquids, gases, and steam, especially in small-diameter pipelines.
Wide Turndown Ratio: Up to 10:1, accommodating a broad flow range.
High Accuracy & Reliability: Accuracy up to 1.0% F.S. with long service life.
Minimal Straight-Pipe Requirement: Simplifies installation and reduces piping constraints.
Robust All-Metal Construction: Handles high temperature, high pressure, and corrosive media.
Dual-Line LCD Display: Real-time and totalized flow displayed on-site.
Non-Contact Magnetic Coupling Drive: Ensures safe operation in flammable or explosive environments.
Easy Operation & Configuration: Built-in keypad on the indicator; multi-parameter calibration capabilities.
Data Protection: Power-off protection, data recovery, and backup functions.
Flexible Power Supply: Optional DC power or battery operation.
Explosion-Proof Options: Exia II CT6 and Exd II CT6 certifications available.
Applications of Rotameter (Metal Tube Variable Area Flowmeter)
Small-Diameter & Low-Flow Pipelines: Measurement of liquids, gases, and steam.
Industrial Process Monitoring: Petrochemical, steel, power, and metallurgy industries.
Food, Pharmaceutical, and Water Treatment: Reliable flow measurement for sensitive processes.
Hazardous Environments: Safe operation in flammable or explosive media.
On-Site Flow Monitoring: High reliability and low maintenance requirements for continuous operation.
Price of Rotameter (Metal Tube Variable Area Flowmeter)
The price of the Rotameter (Metal Tube Variable Area Flowmeter) varies depending on pipe diameter, medium, temperature range, material, and optional features.
For the latest quotation and customized solutions, please contact ZINACA Instruments for a tailored offer.
Rotameter OEM Service
ZINACA Instruments is a professional manufacturer of industrial measurement instruments, specializing in flow, pressure, temperature, and level devices.
We provide OEM and customization services for Rotameters to meet specific industrial requirements and process conditions.
If you are seeking a reliable OEM partner for Rotameters, please contact us to discuss your needs.
Rotameter Manufacturer
ZINACA Instruments – a trusted manufacturer delivering high-quality Rotameters with global OEM support and technical assistance.
Technical Specifications
| Parameter | Specification |
|---|---|
| Meter Diameter (DN) | DN15, DN25, DN50, DN80, DN100, DN150 (other sizes negotiable with manufacturer) |
| Flow Range | Liquid: 1.0 ~ 150,000 L/h Gas: 0.05 ~ 3000 m³/h (see page 11 for detailed flow table) |
| Turndown Ratio | 10:1, 20:1 (special) |
| Accuracy | 1.5% F.S., 1.0% F.S. (special) |
| Pressure Rating | DN15, DN25, DN50: 4.0 MPa (max 20 MPa) DN80, DN100, DN150: 1.6 MPa (max: DN80 10 MPa; DN100 6.4 MPa; DN150 4.0 MPa) |
| Medium Temperature | Standard: -30℃ ~ +120℃ High Temperature: 120℃ ~ 350℃ |
| Power Supply | 24 VDC (12~36 VDC), 220 VAC |
| Output Signal | 4~20 mA DC (two-wire), optional HART protocol, load ≤500Ω (24V supply) |
| Ambient Temperature | Local display: -40℃ ~ 120℃ Remote display: -30℃ ~ 60℃ |
| Storage Conditions | Temperature: -40℃ ~ 85℃ |
| Connection | Flange (GB/T9119-2000, user-specified), cable interface M20x1.5, 1/2 NPT |
| Protection Class | IP65 |
| Explosion Proof | Intrinsic safety: Exia II CT6 Flameproof: Exd II CT6 |
| Pressure Loss | See flow table |
| Humidity | ≤ 85% |
| Medium Viscosity | DN15:<5 mPa·s DN25:<250 mPa·s DN50~DN150:<300 mPa·s |
| Wetted Material | R1: 304, 06Cr19Ni10 R0: 316, 06Cr17Ni12Mo2 RL: 316L, 022Cr17Ni12Mo2Ti (Titanium Alloy) RP: PTFE lining |
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