Standard Vortex Flow Meter (ALVT)

Standard Vortex Flow Meter (ALVT)


Standard Vortex Flow Meter (ALVT)


-12" (15-300 mm)

1.5% gas/steam, 1% liquids

-23~482 °F ( -5 ~ +250 °C)

Process Connection:
Flanges (ANSI, DIN & JIS), Wafer

Best solution for steam, limited liquid and gas applications

1 to 10 cSt

Operating Pressure:
Up to 920 psi (6.4MPa)

SS #304 (standard) SS #316 (optional)

Signal Output:
4-20mA, pulse, Modbus, HART

Process Medium:
Steam, liquid, gas

Vortex flow sensing technology relies on measuring the number of vortex pulses generated by a bluff body immersed in the flow stream. The SMC Vortex meter uses dual sensor technology, producing two independent vortex signals which allow for signal amplification and common mode noise reduction.

Our sensors never touch the process fluid; the crystal sensors are bonded behind a stainless steel wall. The electronics pick up the slightest pressure pulsations generated by the vortices through the stainless steel wall. This design allows meters to have an extremely wide turndown while maintaining an almost unlimited upper end and a high pressure rating. 

  • Standard Vortex
  • ½-12" (15-300 mm)
  • -23~482 °F ( -5 ~ +250 °C)
  • 1.5% gas/steam, 1% liquids
  • 1 to 10 cSt
  • Up to 920 psi (6.4MPa)
  • SS #304 (standard) SS #316 (optional)
  • 4-20mA, pulse, Modbus, HART
  • Flanges (ANSI, DIN & JIS), Wafer
  • Steam, liquid, gas
  • Best solution for steam, limited liquid and gas application
  • Suitable for a wide variety of applications with steam, gas, and liquid medias
  • No moving parts and no leak paths; no o-ring or graph oil seals to wear, fail or leak
  • Two independent sensors, allowing for better signal amplication and noise reduction
  • Error messages displayed for or erratic flows and flows outside of calibrated ranges
  • Field calibration possible with integral or remote electronics and keypad
  • True 2-wire 4-20 mA interface
  • Wide measuring range, turn-down ratio of 30:1
  • Can measure at Reynolds Numbers ranging from 10,000 to 7,000,000
  • Weatherproof multi-pole connector for power, signal and serial interface
  • Area of measurement can be smaller than pipe connection for better rangeability
Process Connections: Wafer (standard), Flanged
Process temperature: -20~+180°F (-5~+250°C) (with LCD display)
Operating pressure: 232 psig (1.6MPa) standard; up to (428 psig) 6.4 MPa optional
Velocity Range: Depends on fluid, pressure and temperature:Liquids: ≤ 1.5~30 feet/sec (0.4~9 m/s)Gas & Steam: 5-300 fps (1.5-90)
Accuracy (and linearity): 1.0% for liquid, 1.5% for gas and steam
Repeatability: ± 0.25% of Reading
Turn down ratio: 10:1
Material : Stainless Steel #304 or Stainless Steel# 316
Signal output: Pulse output, 2-wire 4~20mA DC, VDC, RS485, Hart, ModBus
Display Units:

m3/hr, kg/hr

Keypad: Rate, Total
RAM Back-up: Lithium Battery, 3.6VDC
Data logger: Reading, sampling times 0.5 S
Viscosity: 1 to 10 cSt
Housing protection: IP65; IP67
Cable (remote version): 10 m free for remote version
Weight (approximate): Wafer: 22~29 lbs (10 ~ 13kg) to 12″ (DN300) Flange: Flange weight contact factory
Communication: RS232
Power supply : 110/220 VAC, Isolated 14 – 36 VDC
NIST traceable: Yes
Data storage: EPROM storage up to 5 years

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