The KSMF-S Series Coriolis Mass Flowmeters are high-precision straight-tube Coriolis meters for the measurement of liquids, gases and liquefied gases.
Two parallel measuring tubes are excited into controlled oscillation. When no fluid is flowing, the inlet and outlet signals are in phase. When flow occurs, Coriolis forces cause a differential phase shift between the inlet and outlet portions of the tubes. This time shift is directly proportional to mass flow, while the oscillation frequency is used to determine fluid density, and integrated sensors provide process temperature.
The straight dual-tube design offers low pressure loss, low shear and excellent cleanability, with no requirement for upstream or downstream straight pipe runs. Combined with a wide range of line sizes, pressure and temperature ratings, KSMFS covers applications from general process control to commercial metering across multiple industries.
Based on the KSMF datasheet (straight dual-tube versions). Refer to the model datasheet for detailed sizing and performance.
| Item | Description |
| Measuring principle | Straight-dual-tube Coriolis; phase shift proportional to mass flow |
| Measured variables | Mass flow, density, process temperature; calculated volume flow |
| Measured media | Liquids, gases and liquefied gases, including viscous liquids, suspensions and selected gas–liquid mixtures (within Coriolis application limits) |
| Accuracy classes (mass/volume) | ±0.1 %, ±0.15 %, ±0.2 %, ±0.5 % of rate (application- and model-dependent) |
| Repeatability | Typically 0.05...0.1 % of rate |
| Density range & accuracy | 0.3...3.0 g/cm³; density accuracy up to ±0.002 g/cm³ (liquid service) |
| Nominal flow range | 0...480,000 kg/h (across the full KSMF-size range; model-specific) |
| Line diameters | DN8...DN150 (approx. 1/4"...6") |
| Process connections | Flanged, threaded, Tri-Clamp and fitting-type versions |
| Process connections standards | DIN, ANSI/ASME, JIS standards (others on request) |
| Process temperature ranges | Low: -200...+200 °C; Normal: -50...+200 °C; High: -50...+300 °C (sensor option-dependent) |
| Pressure ratings | Standard: 0...4 MPa; high-pressure options up to 25...40 MPa (model-dependent) |
| Wetted materials | SS316L as standard; Hastelloy and Titanium options for corrosive or demanding media |
| Body / housing materials | Stainless steels 304 / 316L for meter body; robust field housings |
| Ingress protection | IP67 |
| Explosion protection | Ex d (explosion-proof) options available |
| Power supply options | 26 V DC; 220 V AC; wide-range 22…245 V supply variants |
| Outputs | 4-20 mA and pulse output as standard |
| Communication protocols | Modbus （RS-485）, HART; other fieldbus options available via transmitter platform |
| Certifications | ISO, PCEC, CE, ATEX, SIL, UL US, subject to model and region |
| Category | Specification / Option | Notes |
| Core performance | High-accuracy mass and density measurement with excellent repeatability | Suitable for both process control and commercial/transactional metering where approvals are in place |
| Flow profile sensitivity | No requirement for upstream/downstream straight runs | Largely independent of velocity profile and pipeline installation effects |
| Turndown ratio | Up to 1:50 turndown (application- and model-dependent) | Recommended sizing typically within 1:20 for best stability |
| Pressure loss | Low pressure drop across the meter | Straight dual-tube design with limited flow restriction |
| Media flexibility | Capable of handling high-viscosity liquids, suspensions and gas-liquid mixtures, as well as medium/high-pressure gases | Exact performance in multiphase flow depends on phase distribution and operating conditions |
| Measurement modules | Optional concentration, composition and viscosity calculation, bidirectional and batch measurement | Supports advanced process and commercial applications |
| Analog outputs | 4-20 mA | Assignable to key process variables |
| Pulse / frequency outputs | Pulse output for totalizing and batch control | Up to application-specific frequencies |
| Digital communication | Modbus RS-485, HART | Integration into DCS/PLC/RTU and supervisory systems |
| Installation | Flanged, threaded, Tri-Clamp and fitting-type connections; horizontal or vertical mounting | No straight-run requirement simplifies revamps and skid designs |
| Protection & safety | Ex d explosion-proof and IP67 protection | Suitable for harsh environments and classified areas (per certificate) |
| Industry | Medium / Service | Typical Use |
| Oil & Gas / Petrochemical | Crude and refined products, condensate, LPG, additives | Mass-based transfer, blending and loading/unloading operations; process and utility lines |
| Chemical & Fine Chemicals | Acids, alkalis, solvents, polymer feedstocks, additives | Dosing, batching, recipe control and inline density/concentration monitoring |
| Food & Beverage | Dairy products, syrups, glucose, edible oils, alcohols | Mass flow and density measurement in processing, transfer and filling lines (with suitable hygienic connections) |
| Pharmaceutical & Biotech | High-purity solvents, intermediates, process fluids | Critical dosing, filtration and transfer operations requiring accurate mass and density data |
| Water & Wastewater Treatment | Coagulants, flocculants, neutralizers and conditioning chemicals | Precision chemical dosing and consumption tracking |
| Pulp & Paper | Bleaching agents, sizing liquids, process additives | Mass-based dosing and quality-relevant additions |
| Energy & New Energy | Ethanol, biodiesel, thermal oils, battery and new-energy fluids | Production, blending and transfer measurement in conventional and emerging energy applications |
| General Industry & Utilities | Compressed gases, liquefied gases, process liquids | Utility monitoring, process control and commercial metering where Coriolis is applicable |
As China KSMF S-Series Coriolis Mass Flowmeter Manufacturers and KSMF S-Series Coriolis Mass Flowmeter Factory, we are renowned for manufacturing professional and high-precision industrial instruments. Our expertise lies in providing unparalleled flow measurement resources, backed by over 12 years of experience solving complex applications.
Our precision flow metering devices are used by a diverse range of users, ranging from major oil and gas companies to photovoltaic providers, pharmaceutical manufacturers, and municipal services. We continuously contribute to the development of flow measurement in the domestic energy and chemical industries due to our expertise in measuring variable component gases and peculiar mediums.
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+86-18652789521
+86-18052582295
+86-0514-83633600 / 83633900
+86-0514-83633600 / 83633900
No. 11 Xingye Road, Chenji Town Industrial Park, Yizheng, Yangzhou, China
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