Flow Measurement:


Product Datasheet

Turbo-FloTM probes offer the precision of turbine technology with rugged construction. The practical design of the probe includes a bluff bar which protects the turbine from foreign materials in the stream as well as from over insertion. Installation is simple and does not require special fittings. The Turbo-FloTM probe may be installed in standard pipe tees, through pipe saddles, welding spuds and 1 1/2” full opening ball or gate valves.

  • Delrin® non-metallic construction is ideal for water applications. Resists corrosion and mineral salt accumulation.
  • Steel or stainless steel connector fittings.
  • Adjustable insertion length for 11 ⁄2 to 10 inch pipe.
  • Lower cost than stainless steel probes.
  • Rugged construction for industrial environments.
  • No external power required.
  • Wide measuring range with 30:1 turndown.
  • Low mass Delrin® turbines offer improved sensitivity and long life.
  • Use standard pipe fittings for installation

The turbine is positioned in the mid-section of the pipe with its axis of rotation parallel with the flow stream. Fluid velocity causes the turbine, which has a ring magnet inside of its hub, to rotate in proportion to flow rate. As the turbine rotates, the magnetic field passes through a coil in the probe body, generating a pulse output in proportion to the turbine rotation speed. Flow volume is then determined from fluid velocity measurement and pipe diameter information.

Accuracy: ±1.0%
Repeatability: ±0.5%
Linearity: ±0.5%
Turndown: 30:1
Insertion Length: 02 = 2 inches 06 = 6 inches 12 = 12 inches
Threshold: 0.5 ft/s or 1.22 x ID2 = GPM Liquid
Velocity: ft/s = 0.408 x GPM/pipe ID2
    Point Velocity = 2.625 pulses/ft/s

Pulse/gallon correction for uncharted pipe diameters =
ID2 charted pipe Pulse/gallon ID2 uncharted pipe x charted pipe

Materials of Construction:
Connector: Steel, 303sst
Turbine: Delrin®
O-rings: Buna-n or Viton®
Temperature Limits: 225°F(107°C)
Pressure Limits: 145 psig(10bar)@ 75°F(24°C)

ERDCO reserves the right to alter design and/or specifications without notice. Viton® and Delrin® are registered trademarks of E.I. Dupont de Nemours and Co.