Vortex VTX3 for mass flow and energy computing
The Bopp & Reuther VTX3 is a high-performance vortex shedding flowmeter for compressed air and steam measurement. It is engineered for industrial measurement of liquids, gases, and steam with Fully integrated internal P and T sensors directly inside the meter body and inbuilt Mass flow and direct net heat / energy computing.
It is widely utilised across processing plants, energy networks, and utilities to deliver accurate, long-term flow metrics under demanding pressure and temperature conditions.
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Product Models
| VTX3 Flange Version | The standard inline model equipped with rugged, integrated flanges (DIN/ANSI). It is ideal for permanent, heavy-duty piping systems. |
|---|---|
| VTX3 Sandwich Version | A lightweight, wafer-style alternative designed to be clamped securely between existing pipeline flanges, minimising footprint and installation costs. |
| VTX3 Dual Version | A highly redundant system containing two independent flow sensors and two electronics housings on a single process connection for safety-critical tasks. |
| VTX3 W Remote Version | A split configuration separating the inline flow sensor (SV18) from the signal converter (KV18) by up to 50 meters, protecting the electronics from high heat or strong pipeline vibrations. |
Key Specifications
| Nominal Sizes | DN15 to DN300 (1/2″ to 12″) |
|---|---|
| Process Temperature | -40°C to +240°C |
| Maximum Pressure | Up to 100 bar (depending on flange rating) |
| Wetted Materials | 316L Stainless Steel or optional Hastelloy C-22 for corrosive chemicals |
| Outputs & Connectivity | Dual 4–20 mA loops with HART protocol, Profibus PA, or Foundation Fieldbus |
| Approvals | ATEX Zone 1 Hazardous Area protection, Pressure Equipment Directive (PED) compliance |
| Advanced Capability | Optional integrated Pressure (P) and Temperature (T) compensation for direct mass flow and net heat/energy calculation without external computers |
Working Principle
- A stationary bluff body (strut) is placed directly inside the flow stream.
- As fluid passes this body, it creates alternating low-pressure vortices downstream.
- The frequency of these shedding vortices is directly proportional to the fluid velocity.
- A highly sensitive piezoelectric sensor detects these pressure pulses, and the integrated transmitter converts the frequency into an accurate flow rate reading.
Industrial Applications
| Steam & Energy Management | Measuring saturated and superheated steam consumption for industrial boilers, custody transfer, and heating networks. |
|---|---|
| Compressed Air Systems | Monitoring compressed air distribution lines to spot leaks, audit efficiency, and allocate facility costs. |
| Industrial Gases | Precise tracking of inert, natural, or process gases (such as nitrogen, argon, carbon dioxide) across manufacturing lines. |
| Utility Fluids | Volumetric and mass flow billing for demineralized water, industrial hot water, heat-transfer oils, and low-viscosity chemicals. |
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Range, medium, connection and temperature: that is all we need to quote it.