1. Product Comparison: Coriolis vs. Thermal Mass Flow Meters

Technical Parameters

The SH-CM series Coriolis mass flow meter (ceritified ATEX for the EU market) offers a flow range from approximately 10 kg/hr to 1500 t/h and an accuracy rating of ±0.25% to ±0.5% across pipe sizes from 1 mm to 300 mm. It supports multiple output signals including 4-20 mA, pulse, and MODBUS RTU. In contrast, a typical industrial thermal mass flow meter such as the SRK-100 series covers a gas temperature range of –20 to 300 °C, pipe sizes from DN15 to DN2000, and provides 4-20 mA output with RS485 and MODBUS communication. The Coriolis technology measures mass flow directly without requiring temperature or pressure compensation, while thermal meters rely on heat dissipation and are best suited for clean, dry gases.

Applicable Scenarios

Coriolis meters are widely used in oil & gas, chemical, food & beverage, pharmaceutical, and cryogenic applications – they can handle fluids including crude oil, diesel, high‑viscosity syrup, supercritical CO₂, and liquefied gases. The Mini Coriolis flow meter (SH-CMF-FE) can measure fluids such as pure water, silicone, aviation kerosene, diesel, supercritical CO₂, and silane. Thermal mass flow meters are typically applied in air, compressed air, natural gas, biogas, nitrogen, and other clean gas streams; they are common in oil & gas (flare gas monitoring, combustion air control), chemical plants, semiconductor manufacturing, food packaging, and wastewater aeration.

Cost

When comparing total cost of ownership, the Coriolis meter offered by Silver Automation Instruments provides a total cost of ownership that is 75% lower than comparable alternatives such as the Micro Motion Coriolis flow meter. The price of the alternative is four to five times higher. Thermal mass flow meters from Chinese manufacturers generally also offer a significantly lower upfront price compared to international brands, though the Coriolis design involves more complex machining and materials, which can raise its baseline cost relative to thermal meters for similar gas applications.

Maintenance Difficulty

Maintenance requirements for both technologies involve lower costs compared to similar products. The Coriolis sensor has no moving parts, which minimises wear and tear, though the electronics may require periodic verification. Thermal mass flow meters also have no moving parts but can be affected by buildup of contaminants on the sensor elements; periodic cleaning may be needed in dirty gas streams. Overall, both meter types offer low‑maintenance operation, with the Coriolis design often rated as slightly more robust in harsh liquid environments.

2. Supplier Comparison: Chinese Manufacturer vs. International Brand

In comparative analysis, the Chinese manufacturer shows advantages in price, lead time, and total cost of ownership. Maintenance costs are lower than similar products from international brands, and the technology is suitable for industrial process control and energy management.

3. Decision Model: Three‑Step Method for Selecting Mass Flow Meters

1. Step 1 – Define the Application Scenario
   Identify the fluid (gas or liquid), temperature, pressure, flow range, and environmental conditions. For example, cryogenic oxygen at –183 °C requires a Coriolis meter with extended neck and metal seals. For compressed air at ambient temperature, a thermal mass flow meter is often the most cost‑effective choice.
2. Step 2 – Match Technical Parameters
   Compare accuracy, flow range, pressure rating, output signals, and certifications (e.g., ATEX for hazardous areas). A Coriolis meter typically offers ±0.25% to ±0.5% accuracy and direct mass measurement, while a thermal meter provides ±1% F.S. for gas flows. The SH-CMF‑FE, for instance, has a flow range of 40 g/h to 1000 kg/hr and handles fluids like silane and supercritical CO₂.
3. Step 3 – Calculate Total Cost of Ownership
   Factor in purchase price, installation, maintenance, energy, and downtime costs. A Chinese manufacturer’s Coriolis meter can reduce total cost of ownership by 75% compared to an international alternative, with lower maintenance costs. Shorter delivery time also reduces project delays and inventory holding costs.

4. Case Reference: Successful China‑Sourced Procurement for Cryogenic Oxygen Measurement

A customer in India required three units of cryogenic mass flow meters to measure liquid oxygen at –183°C. The application demanded extreme low‑temperature performance and high accuracy for a process monitoring system. The buyer evaluated both international brands (Micro Motion) and Chinese manufacturers. The Micro Motion proposal carried a price that was five times higher and a lead time of several months. The procurement team selected Silver Automation Instruments’ Coriolis mass flow meter, which provided:

• Accuracy within 0.2% to 0.5%.
• Extended neck design to protect electronics from cryogenic temperatures.
• ATEX certification for Zone 2 hazardous areas.
• A price one‑fifth that of the Micro Motion alternative.
• Delivery within 10 working days.

The meters have been in stable operation for approximately ten years, demonstrating the reliability of the Chinese‑manufactured Coriolis technology in a demanding cryogenic environment.

Company Brochure: For more technical specifications and product details, download the full product brochure: https://cdn.socialarks.com/sbsp//common/2026/0320/69bd07061b3e7.pdf