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Vortek Flow Meter: Multivariable Vortex Steam and Gas Sensor Specifications
Quick Answer: The Vortek flow meter from Silver Automation Instruments is a multivariable vortex flow sensor for steam and gas. The meter measures flow velocity, temperature, and pressure in one process connection. Common line sizes are DN15 to DN300.
What the Vortek Multivariable Flow Meter Measures
The Vortek meter uses a bluff body and vortex shedding. Flow passes a shedder bar and creates alternating vortices. A piezoelectric sensor detects the vortex frequency. The electronics convert that frequency to flow rate. The meter body also holds an integrated PT100 temperature sensor and a pressure sensor. One installation point gives you volumetric flow, temperature, pressure, and calculated mass flow.
Because the meter reads three process variables at the same time, it fits saturated steam, superheated steam, compressed air, and natural gas. You do not need three separate transmitters or a separate flow computer in most cases.
Key Specifications
Line sizes range from DN15 to DN300 in 304 or 316L stainless steel. Accuracy is ±1.0 percent of reading for liquids and ±1.5 percent of reading for steam and gas. Repeatability is ±0.2 percent. Turndown is 10:1 to 20:1 depending on the media and line size. Process temperature covers -40 to 350 °C as standard. A high temperature version goes up to 450 °C. Pressure ratings include PN16, PN40, PN100, ANSI 150, ANSI 300, and ANSI 600. Outputs include 4-20 mA HART, Modbus RTU over RS485, and pulse. Power is 24 V DC. Protection is IP65 or IP67. ATEX Zone 1 and Zone 2 versions are optional.
Recommended Models for Steam and Gas
For saturated steam at 10 bar on a DN80 line, the Vortek DN80 with integrated pressure and temperature compensation is a standard choice. For compressed air at 7 bar on a DN50 header, select the Vortek DN50 with pulse output and local display. For natural gas at 30 bar on a DN100 pipe, the Vortek DN100 with 4-20 mA HART and Modbus RTU fits most process monitoring jobs.
We have seen this on customer sites many times. Last year a chemical plant in Vietnam needed a steam flow meter for a 4 inch line at 12 bar. We supplied a DN100 Vortek unit with ATEX Zone 1 certification. The plant installed it in one shift and connected the HART signal to the DCS.
Installation and Sizing Notes
Do not size the meter on line size only. Send us your pressure, temperature, pipe size, and flow range. We check the Reynolds number and velocity range so the meter stays inside its accuracy band. Here is the thing. Vortex meters need a minimum velocity to produce a stable signal. Low pressure gas lines often fall below that limit. In practice most engineers skip this part. We have seen undersized steam meters and oversized air meters across Southeast Asia and the Middle East.
You need straight pipe runs. Standard requirement is 15D upstream and 5D downstream for a single elbow installation. If you have a control valve upstream, use 30D upstream. For steam lines, install the mete
Outputs and Control System Integration
The multivariable Vortek meter sends data to a PLC, DCS, or remote telemetry unit. Standard outputs include 4-20 mA HART and Modbus RTU over RS485. Pulse output is available for totalizer functions. The local display shows flow rate, total flow, temperature, and pressure at the same time. The single meter reduces the number of transmitters and cable runs on a skid or utility line.
For oil and gas sites in the Middle East, we often supply the ATEX Zone 1 version. For water and wastewater plants in Southeast Asia, IP65 or IP67 versions with 24 V DC power are common. We also supply dealers in Australia, Chile, Nigeria, and South Africa with standard models for compressed air and steam utility metering.
What to Send for a Quote
Send us these four values and we will propose a model within one working day. Pressure in bar or kPa. Temperature in °C. Pipe size in DN or inches. Flow range in kg/h, m3/h, or Nm3/h. Also tell us the gas or steam type and whether you need ATEX, HART, or Modbus.
Because we are a flow meter manufacturer and supplier, we can help with vortex meter selection for saturated steam, superheated steam, compressed air, natural gas, biogas, and nitrogen. Silver Automation Instruments supplies customers in Australia, Indonesia, Malaysia, Vietnam, Thailand, Saudi Arabia, UAE, Chile, Peru, Nigeria, and South Africa. You can find more product details on flow-meter.com.au.
Frequently Asked Questions
What is the accuracy of the Vortek multivariable flow meter for steam?
For steam and gas the accuracy is ±1.5 percent of reading under stable flow conditions. For liquids the accuracy is ±1.0 percent of reading. Repeatability is ±0.2 percent.
Can the Vortek flow meter measure both steam and natural gas?
Yes. The meter can be configured for saturated steam, superheated steam, compressed air, natural gas, nitrogen, and other clean process gases. We set the density compensation method before shipment.
What pipe sizes are in stock?
We keep quick delivery for DN15 to DN300 in 304 and 316L stainless steel. Larger sizes or special pressure ratings can be produced against a purchase order.
Do you supply ATEX approved versions?
Yes. ATEX Zone 1 and Zone 2 versions are optional. We also supply non-hazardous area versions for standard industrial plants.
What information do you need to quote a Vortek flow meter?
Send your pressure, temperature, pipe size, and flow range. For example, saturated steam, 10 bar, 180 °C, DN80, 500 to 5000 kg/h. That is enough for a first quotation.
Contact Silver Automation Instruments
Tel: +86-135-1213-1526
WhatsApp: 86-135-12131526
WeChat: +86 13512131526
If you need a price for the Vortek multivariable vortex flow meter, send us your pressure (bar), temperature (°C), pipe size (DN), and flow range. Ask for a quotation for steam, gas, or saturated steam service and the required output signal.
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