The AH Series Hygienic Coriolis Mass Flowmeters are VNERʼs dedicated solution for sanitary and aseptic processes in food & beverage, dairy, brewery, pharmaceutical and life-science applications.
Based on the Coriolis principle, the AH Series provides direct mass flow, density and temperature measurement with leading accuracy. All wetted parts are made from SS316/SS316L with precision-polished surfaces and a selfdraining, dead-zone-free flow path to support the highest hygienic standards.
With a compact, modular design, CIP/SIP capability, and a wide range of hygienic process connections compliant with ASME BPE and common sanitary standards, the AH Series is ideal for skid-mounted systems, filling lines, ingredient dosing, and critical quality-relevant measurements.
Values below are derived from the AH hygienic datasheet. Refer to the full datasheet for model-specific sizing.
| Item | Description |
| Application focus | Hygienic / sanitary processes in food, beverage, dairy, pharma, biotech and related industries |
| Measuring principle | Coriolis effect; controlled tube oscillation with phase shift proportional to mass flow |
| Measured variables | Mass flow, density, process temperature; calculated volume flow |
| Hygienic design | Self-draining, dead-zone-free flow path for full cleanability |
| Wetted materials | SS316 / SS316L, compliant with ASME BPE; surface finish Ra 0.8 μm (standard), Ra 0.38 μm (high-polish option) |
| Process connections | Wide range of sanitary and hygienic connections (Tri-clamp, ISO 2852, DIN 11851 / 1864, ASME BPE-compatible, etc.) |
| Mass flow accuracy (liquids & slurries) | ±0.05 %, ±0.10 %, ±0.15 % or ±0.20 % of rate (High Accuracy / Enhanced / Standard / General) |
| Mass flow repeatability | ±0.02 %, ±0.05 %, ±0.075 %, ±0.10 % of rate |
| Volume flow accuracy (liquids & slurries) | ±0.05 %, ±0.10 %, ±0.15 % or ±0.20 % of rate |
| Density accuracy (liquids & slurries) | ±0.50, ±1.00 or ±3.00 kg/m³ (High Accuracy / Standard / General); field calibration accuracy ±0.20 kg/m³; measuring range 0–5000 kg/m³ |
| Density repeatability | ±0.25, ±0.50 or ±1.50 kg/m³ |
| Gas mass flow accuracy | ±0.25 %, ±0.50 % or ±1.00 % of rate (option, where gas service is required) |
| Temperature accuracy / repeatability | ±1.0 °C accuracy; ±0.2 °C repeatability |
| Turndown ratio | Recommended up to 20:1 for standard accuracy; larger turndown subject to zero stability considerations |
| Zero stability (typical) | From 0.02 kg/h (AH002) up to 6.8 kg/h (AH080), model-dependent |
| Nominal flow range | AH002–AH080: approx. 300–135,000 kg/h nominal flow (at ~0.1 MPa pressure drop) |
| Max. operating pressure | Up to 10.0 MPa (AH002–AH080), subject to temperature and connection rating |
| Process temperature range | Standard sensor: -100...+200 °C |
| Ambient conditions | -40...+60 °C; ≤95 % RH non-condensing |
| Surface finish options | Standard Ra 0.8 μm; high-polish Ra 0.38 μm for enhanced cleanability |
| Secondary containment | Optional containment housing up to 2.5 MPa secondary rating AH002AH080 |
| Category | Specification / Option | Notes |
| Transmitter platform | A-Series full-digital transmitter | DSP-based signal processing and all-digital drive |
| Liquid & slurry performance | High-accuracy classes for mass, volume and density | Verified on ISO/IEC 17025-certified calibration rigs |
| Gas & two-phase capabilities | A-GASTM gas algorithm and MFDTM multi-frequency drive | For gas service and selected gas-liquid / multiphase applications where required |
| Diagnostics | ILODTM intelligent online diagnostics | NAMUR NE107-compliant status and event messaging; supports predictive maintenance |
| Measurement modules | Concentration, component fractions, viscosity, bidirectional flow, batch control | Extends measurement scope and reduces instrument count on skids |
| Hygienic operation | Fully CIP/SIP-capable sensor design | Maintains performance under repeated cleaning and sterilization cycles |
| Analog outputs | 4-20 mA (HART) | Assignable to key process variables |
| Pulse / frequency outputs | Up to 10 kHz pulse / frequency | Suitable for filling, batching and totalizing |
| Digital communication | HART, Modbus RS485, FOUNDATION Fieldbus, PROFINET, PROFIBUS-PA, Ethernet-APL, discrete I/O | Up to 5 configurable I/O channels with flexible combinations |
| Installation options | Integral, extended-integral, remote and wall-mounted | Supports compact skids, tight hygienic manifolds and remote electronics placement |
| Housing options | Sensor housing: SS304 / SS304L; transmitter housing: epoxy-coated aluminium or SS316 / SS316L | Hygienic and corrosion-resistant options for wash-down environments |
| Vibration & environment | Withstands up to 1.0 g, 5–2000 Hz; ambient –40...+60 °C | Suitable for typical plant and skid environments |
| Industry | Medium / Service | Typical Use |
| Dairy & Milk Processing | Raw milk, cream, whey, concentrates | Mass-based transfer, standardization, blending and inline quality monitoring |
| Food & Beverage | Syrups, sugar solutions, sauces, edible oils, flavours | Dosing, batching and filling lines with mass / density control; CIP/SIP-capable measurement points |
| Brewery & Beverage | Wort, beer, soft drinks, CO₂-saturated beverages | Fermentation and filtration control, product transfer and packaging-line metering |
| Pharmaceutical & Biotech | WFI, PW, buffer solutions, media, intermediates | Critical process and utility measurement where hygienic design and accuracy are required |
| Life Sciences & Research | High-purity liquids, culture media, process development streams | Pilot plants, skids and test rigs requiring precise mass and density data |
| Personal Care & Cosmetics | Emulsions, creams, surfactant solutions | Mass-based batching and blending of high-value formulations |
| CIP/SIP Systems | Cleaning and sterilization media | Monitoring of CIP concentrates, return lines and sterilization cycles in hygienic plants |
As China AH Hygienic Coriolis Mass Flowmeter Manufacturers and AH Hygienic 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.
In the complex world of industrial processes—from petrochemical refining to pharmaceutical manufacturing—the precise measurement of liquid flow is not merely a matter of bookkeeping; it is a critical determinant of product quality, operational safety, and cost efficiency. For yea...
READ MOREAs industries accelerate the transition toward cleaner, more efficient energy sources, both compressed natural gas (CNG) and liquefied natural gas (LNG) are playing increasingly significant roles across transportation, power generation, chemical processing, and industrial product...
READ MOREThe growing emphasis on efficiency, accuracy, and system intelligence is turning the Liquid Turbine Flowmeter—specifically the LWGY Series—into a central topic of discussion among engineering teams, plant operators, and automation specialists. Many are now asking what drives the ...
READ MORE
We offer all our products and services at international standards.
+86-18652789521
+86-18052582295
+86-0514-83633600 / 83633900
+86-0514-83633600 / 83633900
No. 11 Xingye Road, Chenji Town Industrial Park, Yizheng, Yangzhou, China
0
EN 
English
عربى
Español
русский
Turkish