I. Medium Type Adaptation

1. Liquid Working Conditions

• Suitable for clean, low-viscosity, single-phase liquids such as tap water, industrial circulating water, gasoline, diesel, methanol, ethanol, and ethylene glycol.
• Requires the medium’s Reynolds number to be Re > 2000 (medium-to-high flow rate). High-viscosity media (e.g., heavy oil, lubricating oil) should be avoided, as they will cause unstable vortex generation and significant accuracy degradation.

2. Gas Working Conditions

• Suitable for dry, clean gases such as natural gas, compressed air, nitrogen, oxygen, carbon dioxide, and blast furnace gas (impurities need to be filtered).
• Can meet the measurement requirements of normal-temperature and medium-to-high-temperature gases (e.g., flue gas monitoring). Attention should be paid to stable gas pressure to avoid severe fluctuations affecting measurement results.

3. Steam Working Conditions

• This is a advantageous scenario for vortex flowmeters, especially suitable for the measurement of saturated steam and superheated steam, such as boiler steam in power plants, process steam in chemical plants, and steam in heating systems.
• Can withstand high temperature and high pressure (typically temperature ≤ 400℃, pressure ≤ 16MPa) with low pressure loss, which reduces pipeline energy consumption.

II. Pipeline and Installation Working Conditions

1. Pipe Diameter Requirements

• Suitable for medium-to-large pipe diameters with DN ≥ 25mm (commonly DN25~DN3000). Measurement accuracy for small pipe diameters (DN < 25mm) is low and not recommended.
• Supports horizontal, vertical, or inclined installation, but it is necessary to ensure full-pipe flow for liquids or uniform flow for gases/steam to avoid empty pipes or gas-liquid two-phase flow.

2. Straight Pipe Section Requirements

• Must meet the length requirements of straight pipe sections before and after the meter: typically, upstream ≥ 10 times the pipe diameter and downstream ≥ 5 times the pipe diameter (when there are no interference components). If valves or elbows are present, the straight pipe section length should be increased (e.g., upstream ≥ 20 times the pipe diameter) to ensure a stable fluid flow field.

III. Environmental and Process Working Conditions

1. Temperature and Pressure

• Temperature range: -40℃~400℃ (conventional models); some high-temperature models can withstand higher temperatures (e.g., 550℃).
• Pressure range: 0~16MPa (conventional models); high-pressure models can meet working conditions with pressure ≤ 40MPa (e.g., high-pressure fluids in oilfields).

2. Environmental Requirements

• Suitable for conventional industrial environments such as petrochemical, power, and metallurgical workshops. If the environment has strong vibration (e.g., near pumps), vibration damping devices must be installed; otherwise, vibration will interfere with vortex detection and cause data drift.
• Can be used in explosion-proof scenarios (explosion-proof sensors are required), such as flammable and explosive areas in oilfields and chemical plants.

IV. Adaptation to Process Control Requirements

1. Flow Range

• Has a wide turndown ratio (1:10~1:30), suitable for working conditions with large flow fluctuations, such as feed measurement in chemical reactors and steam flow measurement during load changes in power plants.

2. Signal Output and Integration

• Supports signal outputs such as 4-20mA, pulse, HART, and RS485, and can be directly connected to PLC and DCS systems to meet the needs of remote monitoring and automatic control, such as closed-loop flow control in industrial production lines.

V. Working Conditions to Avoid

1. High-viscosity (kinematic viscosity > 10mm²/s), high-solid-content (solid particle content > 1%), easily crystallizable, or easily scaling media.
2. Low-flow-rate (Reynolds number Re < 2000) and small-pipe-diameter (DN < 25mm) scenarios.
3. Gas-liquid two-phase flow or liquid-solid two-phase flow (e.g., liquid with bubbles, sewage containing a large amount of impurities).
4. Environments with strong vibration or strong electromagnetic interference (without protective measures).