Coriolis flow meters for dosing and blending

Mass measurement gives the dose directly in kilograms, without density conversion. Traditional volumetric dosers — gear pumps and piston dosers — introduce error when viscosity, temperature or density changes; a mass meter does not depend on these parameters.

In formulation blending — paints, adhesives, lubricants and chemical reagents — in fuel and oil additive injection, and in production chemical dosing in oil and gas. The meter supports both continuous and batch dosing of multi-component products.

Virtually any liquids: low-viscosity solvents, viscous pastes and suspensions, acids, alkalis, surfactants. In oil and gas and petrochemicals this covers corrosion and scale inhibitors, demulsifiers, methanol and glycols, monomers and catalysts.

A volumetric doser meters litres, so its result drifts when viscosity, temperature or density changes. A mass meter measures the kilograms of the component directly, so the batch composition is reproduced run after run.

Direct mass measurement guarantees composition reproducibility from batch to batch. For formulation production this means consistent product quality regardless of external conditions; for expensive additives it rules out overconsumption and underdosing at the same time.

For viscous and abrasive products the range includes the L-type with a straight-tube sensor; suspensions are dosed with abrasion in mind, and the tube material is selected individually. Compact U/D sensors cover low-viscosity components and installation in confined spaces.

Yes, it is a question of tube material: options include 316L, C4 steel, Hastelloy C276/C4, titanium, tantalum, 904L and duplex. The material is selected against the fluid composition and temperature — attach them to the datasheet and we will confirm the option.

Strokes of a plunger or piston pump do not turn into systematic error: the meter totalizes the mass passing through the sensor. Both an individual batch and the total consumption per shift remain accurate at any delivery unevenness.

Free gas or air in the stream reduces liquid measurement accuracy — a general limitation of Coriolis technology that is addressed in skid design. For stable single-phase products it does not apply; the flow parameters are assessed from your datasheet.

DN01–DN08 sensors measure from 0.1 kg/h. This allows accurate injection of additives, catalysts, fragrances and dyes — components where the dose is small and the cost of an error is high; for ultra-small doses accuracy is ±0.2%.

Ratio-controlled blending supports multiple streams: a master-slave cascade on mass flow rate, dynamic ratio correction and automatic data archiving. The set ratio is maintained across the entire capacity range.

Both modes are supported. Continuous suits a constant component ratio in a stream, with PID control via HART or Modbus. Batch meters an exact mass on a controller command to prepare a portion of a specified composition.

Compact U/D sensors cover DN01 to DN80 and are recommended for batch dosing; the L-type is used for viscous and abrasive media. Micro-doses are metered by the DN01–DN08 sizes.

ME100 is the basic model with 4–20 mA HART and a pulse output. ME200 adds Modbus RS-485, a built-in mass totalizer for batch mode, and preact with overshoot compensation.

Cutoff is by mass: the controller issues a command, the meter performs high-accuracy preact, and water hammer on valve closing is compensated. The dosing cycle ranges from 10 g to tons, and every batch is logged.

Describe your task in the datasheet or build a configuration online: medium, flow rate, pressure, temperature, connections, hazardous area. For dosing, the formulation, number of components, required accuracy and operating mode matter — we propose the system scope from them.

In many cases replacement is done without welding: the meter is selected to match the mounting dimensions of the installation. For systems with Micro Motion or Endress+Hauser meters, compatibility is checked against connections, range and controller interfaces — a nameplate photo or unit drawing helps.

Dosing versions are rated to ±0.1–0.2% depending on size. Because the measurement is by mass, the rated accuracy holds when the product changes — unlike volumetric dosers. Every meter is calibrated individually on a flow calibration rig.

Entry in the State Register under No. 98506-26 means type approval and admission to use in the sphere of state metrological regulation. For internal dosing tasks it confirms the metrological status of the instrument.

Verification is performed under the approved procedure. There are two routes: a flow calibration rig with reference meters, or on-site verification with provers — the meter does not need to be removed from the pipeline.

The zero point is stable at low flows, so gram-level portions are metered reliably and zero drift does not accumulate over a shift. For expensive additives this means formulation repeatability and less chemical waste.

No. A Coriolis sensor does not require straight runs, so it fits into a compact unit next to the pump and valves. This simplifies the upgrade of existing dosing installations, where re-piping is undesirable.

U/D sensors are compact and designed for confined spaces; the DN01–DN80 range covers both micro-doses and medium batches. Standard materials are 316L or Hastelloy, and the execution is recommended for batch dosing.

Outputs are 4–20 mA HART, RS-485 Modbus RTU, CAN and frequency-pulse; PROFIBUS PA is available as an option. Data goes to the PLC and SCADA, every dose is logged with a time stamp, and batches are journaled for MES/ERP; ready-made dosing cabinets are available.

For hazardous areas there are designated versions: ME100 — Ex db ib IIC T6 Gb, ME200 — Ex db ia IIC T6 Gb, with dust protection provided on ME200. The sensor is supplied with the matching Ex ib or Ex ia rating, depending on the transmitter.

On vibration, the sensor is tested to GOST R IEC 60068-2-6 (5–55 Hz, 0.35 mm, three axes) — the shaking profile of skids where pumps and mixers share the frame with the dosing unit.

Metrological paperwork is part of the supply: type description, operating manual, verification procedure, EAEU (TR CU) certificates — a set sufficient for registering the instrument. The warranty ends at the earlier milestone: 18 months after delivery or 12 months after commissioning.

Installation supervision, commissioning, service and verification are performed on the territory of Russia. The works are handled by our team, covering the dosing unit from startup through scheduled verification during operation.

Switching products does not call for recalibration of the doser — the measurement is by mass, not volume. There is no mechanical wear either: no moving parts or wear items are designed into the unit. The rated figures are 20 years of average service life and 100,000 hours between failures.

The company builds integrated dosing solutions: a sensor, transmitter and shutoff/control valves under an external PLC or the built-in ME200 controller. Ready-made dosing control cabinets and plant DCS integration are available.