Vortex Flowmeters

Vortex Flowmeters

Endress+Hauser’s Proline Prowirl vortex flowmeters measure flow using the Kármán vortex‑shedding principle: a bluff body generates vortices whose frequency is proportional to velocity and thus volumetric flow. The portfolio is robust and universal for liquids, gases, and steam, and spans flanged, wafer, reduced‑bore, and high‑pressure designs. With multivariable options that integrate temperature and pressure, Prowirl computes corrected volume, mass flow, and energy, ideal for utility balance and steam systems.

Proline Prowirl F 200 is the high‑capability flanged meter, optimized for steam. It detects wet steam and determines steam dryness fraction in‑line, protecting equipment and improving energy accounting. Accuracy is maintained with space‑saving inlet‑run compensation and a robust, drift‑free capacitive sensor. Genuine two‑wire (loop‑powered) electronics simplify integration, while Ethernet‑APL streamlines commissioning. Heartbeat verification keeps proof‑testing on demand and documentation at your fingertips; SIL and hazardous‑area approvals support plant safety.

Prowirl D 200 delivers the same transmitter platform in a cost‑effective wafer body that mounts directly between flanges. With a 65 mm face‑to‑face, no separate flanges, and low weight, it is a practical 1‑to‑1 replacement for orifice plates and legacy primary elements in utilities. The loop‑powered architecture, compact or remote sensor options, and Heartbeat diagnostics make it a straightforward choice for steam distribution, compressed air, nitrogen, and general gas/liquid service where installed cost matters.

Prowirl O 200 is built for high‑pressure lines and mating flanges. It extends the operating envelope up to PN 250 / Class 1500, with materials and sensor construction selected for strength and stability. In steam or gas service, pairing the flow sensor with integrated temperature and, where required, pressure measurement enables compensated mass and energy totals without external computers, well suited to natural‑gas headers, high‑pressure steam users, and power/chemical utilities.

Prowirl R 200 integrates a reduced‑line‑size section to raise velocity and Reynolds number, achieving best‑in‑class accuracy at low flows despite pipe reduction. It addresses sub‑metering and control on oversized lines, e.g., air manifolds, inert‑gas users, and low‑load steam branches. Across the Prowirl 200 family, connectivity spans 4–20 mA/HART, FOUNDATION Fieldbus, PROFIBUS PA, and Ethernet‑APL/PROFINET, so devices drop cleanly into modern and legacy hosts. Typical applications across the portfolio include saturated and superheated steam distribution, boilerhouse energy balance, heat‑exchanger duty monitoring, compressed‑air cost allocation, fuel and process‑gas measurement, and general utility liquids.

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