Hydro-Guard® 200 Series Automatic Flushing System

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.

The Hydro-Guard® 200 Series Automatic Flushing System is ideal for clients who prefer to direct their discharged water to a storm sewer or retention facility. 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 200 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.

For the prevention of cross-connection (backflow), the 200 Series is offered with standard Air Gap backflow protection*. The 200 Series system is housed in an HDPE quality, lockable, low-profile enclosure, which is often specified by utilities that may encounter water restrictions due to drought. With this design, the utility can conduct essential water quality flushing and testing without the visibility of having water flushing to the ground.

The 200 Series Automatic Flushing System is equipped with an OEM-installed Dechlorination System and an onsite, OEM-installed Sampling System to allow water quality samples to be drawn directly from the flushing system.


  • 200 Series Warm Climate
    • Standard Air Gap backflow prevention. *Optional Reduced Pressure Zone (RPZ) or Double Check Valve (DC) for warm climate models.
    • Available in either a low-profile or high-profile design. The high-profile design is ideal for flood-prone areas.
    • Available Bury Depth: 18-inches
    • Thermal Control Valve (TCV) freeze protection is optional for moderate climates
  • 200 Series Cold Climate
    • Integrated freeze protection system allows all water in-service piping to drain from the device to prevent freezing
    • Air Gap backflow prevention
    • Removable internal assembly for ease of maintenance; patented CamLock Release with insulation to hold ground heat
    • Available Bury Depths: 36-inches, 60-inches, 84-inches, and 108-inches
  • Optional Pressure Monitoring for the measurement and reporting of critical pressures
  • Schedule 80 PVC piping with an option for no-lead Brass piping
  • OEM-installed Dichlorination System to dechlorinate all discharged water before it travels to navigable waters
  • Accessible from above ground and housed in a lockable enclosure

Specs & Brochures