ATEX Approved Vortex Steam Mass Flow Meter STLU-VFN
Silver Automation Instruments presents the STLU-VFN vortex steam mass flow meter, engineered for accurate mass flow measurement of saturated and superheated steam. Featuring built-in temperature and pressure compensation, this meter delivers reliable mass flow data in kg/h or t/h across a wide pipeline range from DN15 to DN300. ATEX certified for Zone 2 hazardous areas, it ensures safety and precision in demanding industrial environments.
Key Selling Points
Built-In Temperature and Pressure Compensation – Simultaneously measures steam temperature and pressure to calculate true mass flow, eliminating errors from density variations.
ATEX Approved for Zone 2 – Certified to IEC 60079 standards, enabling safe operation in explosive atmospheres (certificate ICR/VC/HM251296).
Wide Pipeline Range DN15-DN300 – Suitable for both small and large steam pipes, with flexible process connections including flanges, wafers, screws, or tri-clamp.
High-Temperature Resistance up to 500°C – Measures steam flow at extreme temperatures, ideal for superheated steam applications.
CE and ISO9001 Certified Quality – Manufactured under strict quality management (ISO9001:2015) and compliant with EU EMC standards (EN IEC 61326-1:2021).
Technical Specifications
Parameter
Value
Model
STLU-VFN
Measurement Principle
Vortex flow meter
Media
Saturated steam, superheated steam
Pipeline Size
DN15 ~ DN300
Maximum Steam Temperature
500 °C
Flow Sensor Material
Stainless steel 304 (316 optional)
Process Connection
Flanges, wafers, screws, tri-clamp
Compensation
Built-in temperature and pressure compensation
Output Signals
Pulse, 4-20mA, RS485 (modbus)
ATEX Certification
Zone 2, IEC 60079-0:2018, EN 60079-1:2014
CE Certification
EN IEC 61326-1:2021
Models and Options
The STLU-VFN series is available in various pipeline sizes from DN15 to DN300. Options include stainless steel 304 or 316 sensor material, and process connections: flanges, wafers, screws, or tri-clamp. Custom flow ranges and output signals can be configured upon request.
Materials and Structure
The flow sensor body is constructed from stainless steel 304 (standard) or 316 (optional), ensuring durability in high-temperature steam environments. The vortex shedder and sensor assembly are designed for minimal pressure loss and long-term stability.
Applications
This steam mass flow meter is widely used in power generation, petrochemical, food processing, pharmaceuticals, and district heating for energy management, process control, and steam flow monitoring. It reliably measures mass flow of saturated and superheated steam in pipelines.
Customization
Silver Automation Instruments offers customization including special sensor ranges, unique output signals (e.g., 4-20mA HART, RS485 Modbus), and tailored process connections. MOQ is 1 unit. Delivery terms: EXW, FOB, CIF. Payment: 100% T/T in advance.
Case Study
Customer: Steam flow measurement (South Africa) Application: Measuring saturated steam flow Quantity: 10 units Duration: More than 5 years Result: Accurate steam mass flow measurement with integrated temperature and pressure compensation, handling steam up to 400°C.
FAQ
1. What is the difference between mass flow and volumetric flow in steam measurement? Mass flow (kg/h) is independent of temperature and pressure variations, providing accurate energy accounting. Volumetric flow (m³/h) fluctuates with steam density. Our meter directly outputs mass flow using built-in compensation.
2. Can this flow meter be used for superheated steam? Yes, the STLU-VFN is designed for both saturated and superheated steam up to 500°C.
3. Is the meter ATEX certified? Yes, it holds ATEX certificate ICR/VC/HM251296 for Zone 2 hazardous areas.
4. What process connections are available? We offer flanges, wafers, screws, and tri-clamp connections to fit your existing pipeline.
5. What is the minimum order quantity? MOQ is 1 unit.
6. What is the typical delivery time? Most orders ship within 7-10 working days.
7. Do you provide pre-shipment testing? Yes, we offer pre-shipment calibration test, visual inspection, and optional factory acceptance test (FAT).
8. Can I get a customized range or output? Absolutely, we provide fully customizable solutions for sensor range, output signal, and connection type.
Inquiry Information
For pricing, technical support, or to place an order, contact us: Name: Lily Phone: +86 25-52155837 WhatsApp: +86 18936759191 Email: sales@silverinstruments.com
