VTF series Vortex flow meters a re designed for measuring the v olume/mass flow of liquids, gases and steam based on Karman vortex principle.
Adopting advanced differential algorithm along with measurement of isolation, shielding and wave filtering, VTF s eries vortex flow meters have the advantages of immunity on v ibration a nd noise. Meanwhile, the liabilities of VTF s eries v ortex f low meters are well guaranteed by unique sensor packaging technology.
Insertion Vortex Flowmeter
Use Medium: Steam
No moving Parts
Parameters
| Ball Valve | Simple Insertion | Insertion with ball valve |
| Type | A Type | B Type |
| Accuracy | ±2.5% | ±2.5% |
| Display | Optional | Optional |
| Output Signal | Optional: Pulse or 4-20mA | Optional: Pulse or 4-20mA |
| Communication | Optional: RS485 | Optional: RS485 |
| Power Supply | +24VDC±15% | +24VDC±15% |
| Explosion Proof | Optional: ExdIIBT6 or ExiaIICT4 | Optional: ExdIIBT6 or ExiaIICT4 |
| Protection Level | IP65 | IP65 |
| Product Material | 304SS | 304SS |
| Pressure Rating | 1.0MPa | 1.0MPa |
| Fluid Temperature | -20℃~250℃ | -20℃~250℃ |
| Ambient Temperature | -20℃~70℃ | -20℃~70℃ |
Inpipe Vortex Flowmeter
Use medium：Steam
Good for steam measurement
Accuracy: 1.5%F.S.
No moving parts
| Model | LUGB-N | LUGB-A | LUGB-B | LUGB-C | LUGB-D1/D2 |
| Signal Output | Pulse | 4-20mA | NA | 4-20mA | Optional:4-20mA/Pulse |
| Power Supply | 24VDC±15% | Lithium Battery | 4VDC±15% | ||
| Communication | NA | ptional: RS485 | |||
| Accuracy | Liquid: 1.0%; Gas: 1.0%; Steam: 1.5% | ||||
| Local Display | No | No | Yes | Yes | Yes |
| Housing Material | SS304 | ||||
| Explosion Proof | Optional: ExiaIICT5 or ExdIIBT6 | ||||
| Protection Level | IP65 | IP65 | IP65 | IP65 | IP65 |
| Diameter | DN15 to DN300 | ||||
| End Connection | Flange or Wafer | ||||
| Pressure Rating | Standard: 1.6 MPa; Optional: 2.5MPa | ||||
| Fluid Temperature | 1. Standard: -40℃~250℃; 2. High Temperature: -40℃~350℃ | ||||
| Ambient Temperature | -20℃~60℃ | ||||
Measuring system
| Application range | Gas; Liquid; Steam | |
| Measured Value | ||
| Primary measured value | Flow Rate | |
| Secondary measured value | Volume flow ; (Pressure and Temperature is available for model with compensation) | |
Design
| Modular construction | The measurement system consists of a flow sensor and a signal converter. It is available as compact and as separate version. | |
| Compact version converter | N Type: Pulse output without local display A Type: 4‐20mA Output without local display B Type: Local Display; Lithium Battery Power; No Output (Battery Part No.: ER26500) C Type: Local Display; 24V DC Power; 4‐20mA Output; Optional Function: (1) Backup Power Supply: Lithium Battery (2) Modbus RS485 (3) Pulse Output |
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| Connection | Flange: DN15‐DN300 Wafer: DN15‐DN300 |
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| Measurement Ratio | Standard – 10:1 | |
Measuring accuracy
| Reference conditions | Flow conditions similar to EN 29104 Medium: Water / Gas Electrical conductivity: ≥ 300 μS/cm Temperature: +10...+30°C / +50...+86°F Inlet section: ≥ 10 DN Operating pressure: 1 bar / 14.5 psig |
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| Flow Meter Accuracy | For Liquid: 1.0% of rate For Gas and Steam: 1.5% of rate Inse rtio ntyp e: 2.5% of rat e |
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Operating conditions
| Reference conditions | ||
| Process temperature | T1 Level: ‐20...+70°C T2 Level: ‐20...+250°C T3 Level: ‐20...+350°C |
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| Ambient temperature | Standard (with aluminum converter housing): ‐10…+55°C |
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| Storage temperature | ‐20...+70° | |
| Pressure | ||
| EN 1092‐1 | DN200…DN300: PN10 DN100…DN200: PN 16 DN15…DN80: PN 25 Other pressures on request |
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| ASME B16.5 | 1/2”...8": 150 lb RF Other pressures on request |
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| JIS | 1/2”...8": 10 K Other pressures on request |
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Installation conditions
| Installation | Take care that flow sensor is always fully filled For detailed information see chapter "Cautions for Installation" |
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| Flow direction | Forward Arrow on flow sensor indicates flow direction. | |
| Inlet run | ≥ 10 DN | |
| Outlet run | ≥ 5 DN | |
Materials
| Sensor housing | SS304 | |
| Flanges | SS304 | |
| Converter Housing | Standard: polyurethane coated die‐cast aluminum | |
Process connections
| Flange | ||
| EN 1092‐1 | DN15...300 in PN 6...25 | |
| ASME | 1/2”…12" in 150 lb RF | |
| JIS | 1/2”…12” in 10...20K | |
| Design of gasket surface | RF | |
| Wafer | DN15…DN300 | |