Company Profile

Coriolis Mass Flow Meters: Ultimate Accuracy for Density and Mass Measurement

Quick Answer: Silver Instruments Coriolis mass flow meters measure mass flow and liquid density in one instrument. Mass flow accuracy can reach 0.1 percent of rate and density accuracy can reach 0.0005 grams per cubic centimeter. Send your pipe size (DN), flow range (kg/h), pressure (bar), and temperature (°C) to get a quote for DN10 to DN300 models.

Direct Measurement Without Compensation

Most flow meter types measure volume. A magnetic flow meter gives volumetric flow. A vortex meter gives volumetric flow. A turbine meter gives volumetric flow. Volume changes with pressure and temperature. Coriolis meters skip that problem. They measure mass directly. No pressure compensation. No temperature compensation. The result is kg/h, t/h, or lb/min straight from the transmitter.

Here is the thing. Many engineers select a Coriolis meter because the process fluid has a changing composition. A volumetric reading would need density compensation. A Coriolis meter already accounts for density. That saves panel work and reduces error.

Density Output Solves Real Problems

A Coriolis meter can also output live density in grams per cubic centimeter or kilograms per cubic meter. Accuracy depends on model and calibration. Silver Instruments standard meters deliver density accuracy between 0.0005 g/cm3 and 0.002 g/cm3. This is useful for concentration measurement. Sugar content in juice. Solids in slurry. Alcohol strength in spirits. Oil density in custody transfer.

In practice, density output replaces a manual sampling step. Last year a customer in Vietnam asked for a Coriolis meter to measure coconut milk density during production. The line size was DN25. Flow range was 0 to 3000 kg/h. We supplied a sanitary 316L meter with tri-clamp ends. The meter now gives density during batching. Manual lab checks took 20 minutes. The customer removed that delay.

Sizing and Accuracy Data You Can Check

Silver Automation Instruments offers Coriolis mass flow meters from DN10 to DN300. Wetted parts include 316L stainless steel, Hastelloy C22, and titanium. Process connections include flange, tri-clamp, and threaded. Transmitter options include 4-20 mA HART, RS485 Modbus, and pulse output. Power supply can be 24 V DC or 85 to 265 V AC. Hazardous area approvals cover Ex d and Ex ia. Locations up to ATEX Zone 1 and IECEx are available.

Temperature measurement uses PT100. Fluid temperature range is -50 to 200 degrees Celsius for standard models. Pressure rating depends on line size and connection. Many models handle 100 bar or more. Low flow models measure from 0 to 100 kg/h. Large models handle 0 to 500 t/h or more. Always state your minimum and maximum flow range. This affects meter size and price.

Industry Examples from Customer Sites

Oil and gas terminals use Coriolis meters for crude oil and LPG loading. Accuracy matters because the meter is part of the commercial transaction. A 0.15 percent error on a large batch is real money. Chemical plants use Coriolis meters for dosing catalysts and solvents. Dairy and beverage plants use sanitary Coriolis meters for milk, syrup, and beer. Marine fuel systems use Coriolis meters for fuel consumption monitoring on vessels. Desalination plants use them for brine and seawater feed measurement.

A water treatment contractor in the Middle East asked for a DN80 Coriolis meter for measuring liquid polymer feed. The flow range was 0 to 2000 kg/h. The polymer had viscosity around 500 cP. We supplied a 316L meter with 4-20 mA HART output. The meter has run without recalibration for 18 months.

Price and How to Get a Quote

Coriolis meter price depends on line size, wetted material, hazardous area certification, and transmitter type. A DN15 general purpose meter costs less than a DN80 sani