Coriolis flow meters for the chemical industry

Flow passes through oscillating tubes inside the sensor. The Coriolis effect splits the phase of the inlet and outlet vibrations, and the phase difference is proportional to the mass flowing per unit of time.

For measuring and dosing aggressive media: acids, alkalis, solvents and liquid reagents. The meters are installed on process lines and in dosing skids, including continuous processes with changing composition and temperature.

Mass flow, density and temperature — all three are captured from a single point in the pipeline, with no extra sensors. The density measurement range is 650–2000 kg/m³.

The density of chemical media changes with temperature, concentration and phase composition, so volumetric measurements need corrections. Mass stays valid regardless — which matters when dosing expensive reagents and metering products of variable composition.

Yes. Accuracy of 0.1–0.2% keeps the product composition within tight tolerances in continuous reactors. For dosing duties the page recommends a straight-tube L sensor combined with the ME200 transmitter.

Sulphuric (H₂SO₄), hydrochloric (HCl), nitric (HNO₃), phosphoric (H₃PO₄) and hydrofluoric (HF) — concentrated and diluted. The tube material is selected for each acid individually; attach the fluid composition to your datasheet.

It does: caustic soda (NaOH), potassium hydroxide (KOH), ammonia solutions (NH₄OH) and other alkaline compounds. For most such media a 316L tube is suitable; under harsh conditions the material is confirmed separately.

Yes. The page lists acetone, methanol, ethanol, isopropanol, toluene, xylene, ethyl acetate and methyl ethyl ketone. 316L remains the baseline material for solvents; the final choice depends on temperature and impurities.

Use the materials table on the page. Hastelloy C4/C276 — acids and chlorides, including wet chlorine; tantalum — HCl, HNO₃, H₂SO₄; titanium — chloride media, oxidisers, HNO₃; 316L — moderately aggressive media, solvents and alkalis.

No — tantalum is destroyed by hydrofluoric acid, and so is titanium. HF service uses nickel alloys: Hastelloy C-276 (available in our range) and the industry-standard Monel 400 and Alloy 20 — selected by concentration, temperature and impurities. If HF is present in the process, mark it in the datasheet.

Hydrogen peroxide (H₂O₂), ferric chloride, sulphates, nitrates, chlorates and organochlorine compounds are among the listed media — the meter handles them. Each medium gets its own wetted-material selection; non-standard compositions are reviewed from the analysis.

Straight-tube L sensors (DN08–DN50) handle viscous and abrasive media: no bends, no dead zones, minimal pressure loss and CIP/SIP cleaning capability. For cleaner streams the universal U sensor (DN03–DN250) fits.

316L, C4, Hastelloy C276/C4, titanium, tantalum, 904L and duplex. Selection follows the medium, temperature and pressure; the page lists recommended combinations for typical media. If the medium is not in the table, we confirm the grade from a fluid analysis.

The jacket holds the sensor at a constant temperature and removes the influence of ambient conditions on measurement. It is used for high-accuracy dosing and for media prone to crystallisation.

GOST, ANSI and DIN flanges plus threaded connections — availability depends on the size and execution. The connection type and face-to-face length are fixed at the selection stage, together with the sensor configuration.

Micro-dosing of additives and catalysts uses the high-stability configuration with a 100:1 turndown; its zero point holds steady on minimum flows. That keeps the absolute error small where it matters most.

Two ways to start an inquiry — the datasheet or the online configurator. Tell us the media, flow rates, pressure, temperature, required materials and hazardous-area class; in reply you get a selected execution and a quotation. Price factors: size, tube material, pressure and Ex execution.

Liquid accuracy runs from ±0.1% to ±1.0% depending on line size; critical dosing uses the 0.1% class, and custody transfer uses accuracy from ±0.1%. Each meter passes an individual calibration on a flow calibration rig.

The meter holds entry No. 98506-26 in the State Register of Measuring Instruments. Registry status opens regulated uses — commercial transactions and settlements between counterparties above all.

Verification follows the approved procedure. The base route is a flow calibration rig with reference meters; the alternative is on-site verification with provers, with the sensor left in place. The company also supplies verification rigs, including compact provers.

The working window between highest and lowest flow with rated accuracy intact. Chemical plants run in campaigns — startups and low night feeds — and that margin keeps those points measurable.

Straight runs are not required for this meter type. Accuracy does not depend on how the flow is distributed across the pipe, so the meter fits into cramped sections of existing chemical lines.

Orientation is chosen for the skid. The sensor is positioned so that it drains and does not accumulate sediment; the layout for a specific line is agreed at the design stage and is also covered in the operating manual.

Outputs are 4–20 mA with HART and RS-485 with Modbus RTU; this is sufficient for integration with DCS and dosing systems, where the page recommends the ME200 transmitter. PROFIBUS PA is available as an option.

For hazardous zones the range includes transmitter variants: ME100 — Ex db ib IIC T6 Gb; ME200 — Ex db ia IIC T6 Gb. The sensor block carries Ex ib IIC T6…T1 Gb with ME100, or Ex ia IIC T6…T1 Ga with ME200.

Straight-tube L sensors allow CIP/SIP cleaning without dismantling: there are no bends or dead zones inside, and pressure loss is minimal. Cleaning-agent limits apply: for 316L, chlorine-based solutions (hypochlorite) are usually capped at around 100–200 mg/l and up to 40–50 °C; seal materials (EPDM, FKM, FFKM) are selected for the medium and cleaning regime. The cleaning schedule is agreed at selection.

Supplied with each meter: TR CU certificates, the type description, an operating manual, the verification procedure. Warranty cover runs 18 months after delivery — or 12 months after installation, if that deadline lands first.

Service support — commissioning supervision, startup, maintenance and verification — is provided in Russia by the company's own team. This covers both new-line commissioning and scheduled checks of meters already in the plants.

Nothing in the measuring path wears out, which means no servicing routine. Life figures from the type description: 20 years average, 100,000 hours mean time between failures.

Replacement is possible in many cases without welding — the meter is selected by the mounting dimensions and interfaces of the unit being replaced. Compatibility, including with Micro Motion and Endress+Hauser, is confirmed from a nameplate photo or a piping drawing. ---