Xi'an Yunyi Instrument Co., Ltd
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Supply Ability | 1000-5000pcs |
| Delivery Time | 5-8 work days |
| Packaging Details | cardboard box |
| accuracy | +/-1%, +/-0.5% |
| Medium | Water, Oil, Liquid |
| type | Variable Area Air & Gas Flowmeters, Roots flowmeter |
| place of origin | Shaanxi, China |
| Connectivity | consult customer service |
| model number | YF Series |
| Line Size | DN25-DN200 |
| Working Temperature | -20 - 120 Deg.C |
| Signal Output | 4-20mA/Pulse/RS485 |
| Power Supply Lithium Battery | DC12-24V / 3.6V |
| Working Pressure | 1.6 MPa/2.5MPa |
| Protection Class | IP65/ IP68(optional) |
| Brand Name | YUNYI |
| Model Number | YF Series |
| Certification | CE |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram | Supply Ability | 1000-5000pcs |
| Delivery Time | 5-8 work days | Packaging Details | cardboard box |
| accuracy | +/-1%, +/-0.5% | Medium | Water, Oil, Liquid |
| type | Variable Area Air & Gas Flowmeters, Roots flowmeter | place of origin | Shaanxi, China |
| Connectivity | consult customer service | model number | YF Series |
| Line Size | DN25-DN200 | Working Temperature | -20 - 120 Deg.C |
| Signal Output | 4-20mA/Pulse/RS485 | Power Supply Lithium Battery | DC12-24V / 3.6V |
| Working Pressure | 1.6 MPa/2.5MPa | Protection Class | IP65/ IP68(optional) |
| Brand Name | YUNYI | Model Number | YF Series |
| Certification | CE | Place of Origin | China |
| High Light | flange connection gas flow meter ，RS485 waist wheel flowmeter ，LCD display gas flow meter | ||
The Roots Flowmeter is a positive displacement meter renowned for its exceptional accuracy and reliability in measuring the flow of clean, dry gases. Operating on the principle of two precisely machined, counter-rotating "Roots" impellers, it traps and displaces a fixed volume of gas with each revolution. This mechanical action is translated into a precise digital pulse output, providing highly repeatable and accurate flow data. As a cornerstone technology in gas flow measurement, it is the preferred choice for critical applications in fiscal metering, custody transfer, and process control where measurement integrity is paramount.
Key Features & Advantages
Unmatched Accuracy: Delivers exceptionally high measurement accuracy (e.g., ±0.5% to ±1.0%) across a wide flow range, making it ideal for custody transfer and fiscal metering where every unit of gas counts.
Wide Flow Rangeability: Offers an excellent turndown ratio (e.g., 10:1 or higher), ensuring precise measurement from low to high flow rates within a single meter.
Proven Durability & Long Service Life: Constructed with robust materials and a simple, mechanical design with no metal-to-metal contact, ensuring long-term stability and reduced wear.
Minimal Pressure Drop: The impellers are designed to rotate freely, creating a very low permanent pressure loss, which enhances overall system efficiency.
Pulse Output for Direct Reading: Generates a precise pulse signal directly proportional to the displaced gas volume, enabling easy integration with flow computers, PLCs, and SCADA systems for direct totalization and flow rate calculation.
Excellent Repeatability: The positive displacement principle guarantees that the same volume of gas is displaced for each revolution, providing highly consistent and repeatable results.
Technical Parameters
Typical Applications
Roots Flowmeters are deployed in a wide range of industries for critical gas measurement:
Oil & Gas: Custody transfer of natural gas, fuel gas measurement, gas lift injection, and flare gas monitoring.
Industrial Gases: High-precision metering for the production, filling, and distribution of industrial and specialty gases (e.g., Nitrogen, Oxygen, Argon).
Chemical & Petrochemical: Process gas flow measurement for reactor feeds, catalyst regeneration, and utility gas accounting.
Power Generation: Measurement of fuel gas for turbines and boilers.
Aerospace & Automotive: Engine test cell applications for precise intake air or fuel consumption measurement.
Why Choose Our Roots Flowmeter?
Our Roots Flowmeter embodies a legacy of precision engineering. It is designed to provide decades of reliable service, ensuring that you have complete confidence in your gas measurement data for billing, process optimization, and regulatory compliance. For a solution that combines proven technology with modern manufacturing standards, look no further.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2007
Total Annual:
1000000-2000000
Employee Number:
150~200
Ecer Certification：
Verified Supplier
YUN YI ,we are professional manufacturer that engaged in the fields of pressure measurement instrument. we have 12 years sensor producing and developing experiences Xi'an Yunyi Instrument Co., Ltd is a professional R&D center and manufacture of measuring instruments.And here's a vari... YUN YI ,we are professional manufacturer that engaged in the fields of pressure measurement instrument. we have 12 years sensor producing and developing experiences Xi'an Yunyi Instrument Co., Ltd is a professional R&D center and manufacture of measuring instruments.And here's a vari...
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