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Mainline Propeller Water Meters


Enable accountability measurement within your potable and non-potable cold water applications

Mainline Propeller meters (Model 101/102) are primarily intended for accountability measurement of potable and non-potable cold water with flow in one direction only. Registration accuracy is 100% ± 2% of actual throughput within specified normal flow ranges. Because all appropriate parts are sealed for protection, the meters can be used in water containing particulate solids (such as sand), without causing undue wear.

Mainline Propeller meters are available in weld-on, clamp-on, plain tube and flanged end styles for applications where accountability rather than revenue is a factor. Typical applications include pump discharge, fresh water treatment plant measurement, sewage treatment plant effluent and chemical feed control. Available with Electronic Rate of Flow (E-ROFI) registers.

Benefits to you

  • Can be installed at any convenient angle from horizontal to vertical
  • Allows continuous operation
  • Reduces maintenance costs
  • The E-ROFI or High-Speed Pickup Registers are available for interfacing with Sensus Act-Pak Instruments
Features & Documents
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  • Meets AWWA Standard C704
  • Available in 3” to 36” sizes
  • Operates within cold water up to 100°F (38°C)
  • All appropriate parts are sealed for protection to prevent undue wear
  • Available with a standard sealed mechanical register (Model 111) or a sealed Electronic Rate of Flow Instrument and Transmitter—E-ROFI (Model 112)
  • 100 ± 2% accuracy of actual flow within specified normal and intermittent flow ranges
  • 150 psi (10 bar) Working Pressure Maximum
  • E-ROFI or High-Speed Pickup Registers can interface with Sensus Act-Pak Instruments


  • 3” Size: Round, AWWA 150 Class
  • 4”—12” Sizes: Round, AWWA Class D
  • 14”—36” Sizes: Round, AWWA 150 Class

To find information about the operating characteristics of these meters and more, download the product data sheet.

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