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Hot Tap Flow Sensors - Series 225 & 226

The 225BR and 226BR/226SS flow sensors are used for flow measuring applications in most metallic or non-metallic pipes where it would be difficult to shut down or drain the line for installation or service. The 225 flow sensor features a gate valve for isolation. The 226 flow sensor uses a ball valve. If the pipe is to be hot tapped, the ball valve is recommended.

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  • Size
    12.7...63.5 mm
    1/2...2-1/2 in.
  • Temperature Range
    Up to 105 °C
    Up to 221 °F
  • Flow Range
    0.09…9.144 m/sec
    0.03...30 ft/sec
  • Pressure Range
    Up to 27 bar
    Up to 400 PSI
  • Accuracy
    ±1.0%
    ±1.0%
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Provides higher, more consistent torque than four-bladed impeller designs.

Used for flow measuring applications in most metallic or non-metallic pipes where it would be difficult to shut down or drain the line for installation or service.

  • Forward swept impeller shape. Provides higher, more consistent torque and is less prone to be fouled by water borne debris.
  • Forward curved shape coupled with the absence of magnetic drag. Provides improved operation and repeatability at lower flow rates.


Product Specifications

Download CSI Specifications
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  • Pressure Ratings
    Model At 100 °F At 300 °F (High Temperature Model Only)
    225BR 300 PSI 210 PSI
    226BR 400 PSI 250 PSI
    226SS 400 PSI 300 PSI
    Model At 100 °F At 300 °F (High Temperature Model Only)
    225BR 300 PSI 210 PSI
    226BR 400 PSI 250 PSI
    226SS 400 PSI 300 PSI
  • Recommended Design Flow Range
    0.5…30 ft/sec Initial detection below 0.3 ft/sec
    0.5…30 ft/sec Initial detection below 0.3 ft/sec
  • Temperature Ratings
    Standard Version: 105 °C continuous service
    Irrigation Electronics: 66 °C
    Standard Version: 221 °F continuous service
    Irrigation Electronics: 150 °F 
  • Accuracy
    ± 1.0% of full scale over recommended design flow range
    ± 4.0% of reading within calibration range
    ± 1.0% of full scale over recommended design flow range
    ± 4.0% of reading within calibration range
  • Repeatability
    ± 0.3% of full scale over recommended design flow range
    ± 0.3% of full scale over recommended design flow range
  • Linearity
    ±0.2% of full scale over recommended design flow range
    ±0.2% of full scale over recommended design flow range
  • Transducer Excitation
    • Supply voltage = 8V DC min. 35V DC max.
    • Quiescent current = 600 uA (typical)
    • OFF State (VHigh) = Supply voltage – (600 uA * Supply
      impedance)
    • ON State (VLow) = 1.2V DC @ 40 mA (15 Ω + 0.7V DC)
    • Supply voltage = 8V DC min. 35V DC max.
    • Quiescent current = 600 uA (typical)
    • OFF State (VHigh) = Supply voltage – (600 uA * Supply
      impedance)
    • ON State (VLow) = 1.2V DC @ 40 mA (15 Ω + 0.7V DC)
  • Output Frequency
    3.2…200 Hz
    3.2…200 Hz
  • Output Pulse Width
    5 msec ±25%
    5 msec ±25%
  • Electrical Cable for Standard Sensor Electronics
    20 feet (6 m) of 2-conductor 20 AWG shielded U.L. typePTLC wire provided for connection to display or analog transmitter unit. Rated to 105° C. May be extended to a maximum of 2000 feet (610 m) with similar cable and insulation appropriate for application.
    20 feet (6 m) of 2-conductor 20 AWG shielded U.L. typePTLC wire provided for connection to display or analog transmitter unit. Rated to 105° C. May be extended to a maximum of 2000 feet (610 m) with similar cable and insulation appropriate for application.
  • Electrical Cable for IR Sensor Electronics
    48 inches (122 cm) of U.L. Style 116666 copper solid AWG 18 wire with direct burial insulation. Rated to 221° F (105° C)
    48 inches (122 cm) of U.L. Style 116666 copper solid AWG 18 wire with direct burial insulation. Rated to 221° F (105° C)
View all Specifications

Market Applications

  • Building Design, HVAC & Plumbing

    Flow instrumentation solutions are a crucial aspect of building design, construction and operation for apartments, hospitals, schools, factories and other facilities. From HVAC and grounds management to plumbing and water services, our flow meters are specifically designed to provide solutions that are accurate and reliable, even under the most challenging conditions.

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  • Wastewater Treatment

    Wastewater treatment facilities feature complex operational processes involving a wide range of flow measurement, water quality monitoring and toxic gas detection solutions, designed to conserve water, increase regulatory compliance and safeguard water quality, people and the environment. From individual monitors to multiparameter measurement, our versatile solutions deliver continuous and proactive monitoring for early event detection, odor control, pollution prevention, chemical management and toxic gas detection.

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  • Industrial Process

    The measurement and monitoring of flow, water quality and toxic and combustible gas plays a vital role in industrial processes for consistent delivery of quality control, personnel safety, environmental protection, process monitoring and optimization. Our comprehensive range of robust, real-time and reliable instrumentation provides dependable solutions that are easy to install, simple to maintain, creates safe areas of work and deliver increased regulation compliance.

    View Solutions

Product Documentation

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