50 Series Automatic Flushing System

AUTOMATIC FLUSHING SYSTEMS The Hydro-Guard® Automatic and S.M.A.R.T. Flushing product family offers industry-leading, reliable designs to address a range of utility needs and community concerns. Traditional routine flushing programs can mitigate community drinking water concerns related to taste, discoloration, or odor; however, manual hydrant flushing can be costly and time-consuming for utilities along with causing wear on the hydrant. Automated flushing programs can address these issues while also considering climate, environmental, installation, and community concerns. Each product series is available in a cold climate or warm climate edition and supports a range of popular bury depth options to ensure year-round performance in any distribution network. In addition, Hydro-Guard Automatic and S.M.A.R.T. Flushing Systems incorporate physical security and are UL-listed and certified to NSF/ANSI 372. Selecting the correct Hydro-Guard Automatic or S.M.A.R.T. flushing product, or combination of products has never been easier. Hydro-Guard has you covered with fixed, temporary, and S.M.A.R.T. designs.

The Hydro-Guard® 50 Series Automatic Flushing System provides economical and programmable automatic flushing capabilities with a 2-inch adjustable control valve and piping assembly, making this device an excellent match for many rural and small mainline-size applications. With the available Bluetooth controller, authorized operators can schedule up to 24 different flush events into the controller through a free K-Rain KRBL V2 app that can be added to most iOS or Android phones. Flush durations can range from one (1) minute to six (6) hours per programmed flush event. Where the use of a mobile app or Bluetooth is not permitted, the 50 Series can be equipped with a built-in NODE programmer. The NODE programmer allows for scheduling flush events multiple times per day, multiple times per week.

Mounted fully above ground, with no below-grade base, the Hydro-Guard 50 Series is suited for use in very warm climates.


  • Schedule 80 PVC piping
  • OEM-installed Dichlorination System to dechlorinate all discharged water before it travels to navigable waters
  • Diffusing vents dissipate energy while enhancing the system’s stability
  • Splash plate minimizes erosion from the flushed water being discharged
  • Access control valve, sampling system, and load Dechlorination tablets from ground level

Specs & Brochures