Flow Measurement:

Water

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.
15 feet or more of cable for connection to remotely mounted display/transmitter.
Probe mounted options include 4-20 mA signal output transmitters and displays.
The LCD rate/total display does not require external power. Turbine rotation recharges the lithium power cell in the display.
Transmitters and displays can
also be wall mounted. Shown:
TF-15350-2 Rate/total display
TF-15390 Rate/total display with 4-20 mA transmitter
TF-15385 4-20 mA transmitter (no display)
The wall mounted TF-15275 Series of Flow Controllers includes 4-20 mA signal output and two optional adjustable set points each with Form C 5A contacts. NEMA 4X enclosure. 85-265
VAC, 47-63 Hz.

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:
Probe: Delrin®
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.