DELTAFLOW Vortex Flow Meter



  • Wide flow range
  • High degree of accuracy
  • No moving parts

Deltaflow Vortex

The DELTAFLOW Vortex from OVAL was developed for measuring gas flow in large size pipelines. This Vortex flow meter includes a probe equivalent to a 2-inch DELTA vortex meter which is inserted in the pipe to determine the actual flow rate by measuring a representative flow velocity of the process fluid passing it. A thermistor sensor is used for vortex detection.

Features of the DELTAFLOW Vortex flow meter include:

  • A wide flow range at a high degree of accuracy
  • Exceptionally small pressure loss to save energy
  • Model with a gas-purge sensor allows measurement of dirty gases and high temperature service (up to 350°C)
  • Replaceable sensor assembly eliminates the need to interrupt the process during inspection or maintenance
  • Inherently insensitive to vibration in the surrounding environment
  • No moving parts to wear out giving a long service life
  • Suitable for dirty gas flow


Manufacturer: OVAL

Part Ref: VF

IWN: FLO-582464

Liquid: Clean Water, Dirty Water

Gas: Air, Steam, Other Gas

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DELTAFLOW Vortex Flowmeter Industrial Vortex Meter for Gas Measurement Vortex flow meters with a thermistor sensor for vortex street detection. Changes in thermistor temperature lead to changes in resistance value and a train of pulses proportional to the flow velocity. A gas purge version is available for metering gases containing dust and mist, or high or low temperature gases.

Specification Detail of the DELTAFLOW Vortex Flowmeter:

Pipe Size
DN20 – DN500

Material Body
SUS304 STPG370 SUS304 STPY400 SUS304TP

Flow Range
12.5m³/h to 19000m³/h

±1% of RD or ±1% of FS

Operating Temp Range
-30 to 130°C

​Pressure Range
1.8 to 5MPa

Outputs & Comms
Transistor open collector output; Max. volts x current: 27V DC X 20mA; Pulse width: 1ms

Insertion / Inline

Fluid Type

Applicable Liquids


JIS 10, 20, 30K, ASME/JPI 150, 300

Connection Type
G3/4 (internal thread)


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