Flow Devices

Updated August 14, 2025 2 min read

Chris is back on Tech Talk to discuss different flow devices and when you might use each of them.


BL-PFS-100 (Plastic) and BL-BSF-150 (Brass)

  • Paddle-style design with a paddle wheel that sends a pulse each time it spins.
  • Built-in biCoder with LED lights on top, connected to the 2-wire path.
  • As water flows through, pulses are sent to the controller, which it can read.
  • 6" size; smaller sizes are through-style, while larger sizes are saddle-style that mount into a pipe.

Setup Verification

  • Because the flow biCoder is built in, the device is pre-programmed with the K-value and offset value.

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BL-BFM-100 (Brass Flow Meter)

  • Disc-style design with an internal rotating disc.
  • Provides the same analog reading.
  • Current flow can be viewed in the field without the controller.
  • Has a built-in biCoder that connects to the 2-wire path.
  • Pre-programmed.
  • Includes a photodiode; for retrofitting an existing meter to a Baseline system, it’s recommended to have a meter head with photodiode output that can sit on top.

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BL-BHM-150-NO (Brass Hydrometer)

  • Available in 1½" and 4" sizes.
  • Disc-style flow recorder combined with a master valve assembly, two devices in one.
  • One biCoder reads flow from the register; another master valve connects to the solenoid.
  • Compact design fits into tight spaces, ideal for retrofits.
  • Horizontal turbine with built-in stream straightener.

Valve types:

  • Normally Closed – Tubing from the solenoid returns to the bottom of the hydrometer body.
  • Normally Open – Tubing from the top of the solenoid vents to atmosphere.
  • Toggle switch with three positions:
    • Close – Prevents diaphragm from opening.
    • Open – Flows water continuously.
    • Auto – Automated by the system to manage and monitor flow per design.
  • Manual bleed via small brass trigger to open the solenoid manually if needed.

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BL-CP-PFS100 (Plastic Flow Sensor)

  • Built-in biCoder with integrated transducer.
  • Master valve biCoder allows connection of an external master valve.
  • Includes a pressure biCoder.
  • Single 2-wire output.
  • Available in 1", 1½", and 2" sizes.

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BL-5309 and BL-5308  

  • Can connect with most flow devices on the market and to an output.
  • BL-5309 (top right) – Has purple wire provides 12V power to external devices.
  • BL-5308 (bottom) – Has blue wire for meters that do not require power (most pulsed-output devices).
  • Suitable for paddle-style flow meters that operate without additional power.

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