RBC 8000 Single Station Battery Operated Timer with 3/4″ Anti-Siphon Valve


RBC 8000 Single Station Battery Operated Timer with 3/4″ Anti-Siphon Valve

RBC 8000 Single Station Battery Operated Timer with 3/4″ Anti-Siphon Valve

The RBC8000 Single-Station Battery Operated Timer mounted on a 3/4″ anti-siphon valve is an innovative and rugged battery-operated timer for use in residential and commercial applications, or where AC power is unavailable. Available with the latest and most efficient electronic management technology, the RBC8000 can operate up to three years on two AA alkaline batteries. It features a large, easy-to-read LCD screen and simple icon-based programming with weekly or cyclical programs. The timer’s 3/4″ heavy duty professional grade anti-siphon valve includes flow control and external manual bleed for smooth opening and closing. Completely waterproof and able to operate in harsh environments, the RBC8000 is the simple and dependable solution for any irrigation system.


  • Powered by two AA alkaline batteries with a safe period of 60 seconds to replace without losing the program
  • Watering flexibility with a selection of watering frequencies and four start times
  • Seven buttons with integrated high resolution screen
  • Easy-to-read LCD display with AM/PM clock and icon-based programming for easy navigation
  • Blinking notification on days the timer is active
  • Programming time options in AM/PM or 24 hour
  • Non-volatile memory retains program and timer integrity (excluding time)
  • Emergency backup program of five minutes every 24 hours if no program is selected after battery installation, starting at 8:00 AM
  • Manual irrigation cycle can be performed via the timer manual program button or via the solenoid
  • One button for program off until reactivated or as an irrigation suspension override (rain mode)
  • Energy conservation; after 15 minutes the timer screen is turned off automatically
  • Low battery indicator
  • Semi-automatic, automatic or manual operation
  • Retractable coiled cord for easy removal of the timer
  • Available with 3/4” NPT or BSP thread heavy duty, professional anti-siphon valve with manual flow control and external manual bleed supported by stainless steel screw
  • Threaded battery cover with O-ring for waterproof protection of the batteries
  • Latching solenoid with encapsulated plunger and spring for reliable operation
  • Wire ready for a rain sensor
  • The timer interior is completely waterproof (IP68) – can operate in harsh environments
  • Environmentally friendly; utilizes RoHS compliant components
  • Battery life up to three years
  • Three year warranty


How to Order
RBC-8000 Single Station battery operated timer with 3/4" anti-siphon valve and


  • Operating pressure: 20 to 125 PSI
  • Flow range: .25 to 20 GPM
  • Temperature range: 38-130°F (3-54°C)
  • Meet the listed compliance:
    • UPC
    • Meet I.A.P.M.O. UPC and ANSI listing specifications
    • Canadian Standards Association listing approved
  • Inlet and outlet: female pipe thread (FNPT) or British standard thread (BSP)
  • Timer power source: two AA alkaline batteries (not included)
  • Solenoid with enclosed plunger: Two-way magnetic latching, normally closed, 7-12 Volt DC with two wires
  • Retractable solenoid wire: 4.1” (coiled length when extended, approximately 18")
  • Valve: 3/4” FNPT heavy duty anti-siphon valve with flow control and external manual bleed
  • Materials:
    • Timer housing: high-impact plastic
    • Anti-siphon bonnet and solenoid: glass reinforced nylon
    • Anti-siphon housing: PVC

Programming options

  • Watering duration: 1 minute up to 5 hours and 59 minutes set in 1 minute increments
  • Watering frequency: weekly or cyclical schedule with odd days, even days, or intervals from one to thirty (1- 30) days
    • In weekly schedule, the timer can be programmed to operate on any day of the week such as Monday, Wednesday, and Friday.
    • In cyclical schedule, the timer can be programmed to operate on odd days, even days, or on any day such as every three days.
  • Up to four start times per day in weekly or cyclical schedules provides added flexibility for any type of watering application, including sandy or clay soil.
  • Rain off/delay option with automatic restart up to 99 days
  • Program off option holds program until reactivated
  • Manual cycle via the program with automatic shutoff option
  • DIG RBC Series Battery Operated Timers: Programming


The RBC8000 battery operated timer is mounted on a 3/4” anti-siphon valve. An anti-siphon valve, frequently required on outdoor irrigation systems, is a directional valve that allows water to flow in only one direction and prevents irrigation water from back-siphoning to the drinking water supply line, preventing contamination of the water supply. It is open to the atmosphere when there is reduced or no pressure in the line. The timer has a 3/4” inlet and outlet with female pipe thread so it can be installed directly onto 3/4” PVC male pipe thread as part of a drip irrigation or sprinkler system valve manifold or as a stand-alone unit.

Install the timer at least six inches above the highest sprinkler or elevated line within the zone.

The timer has seven buttons with the center four buttons (left, right, up, and down arrows) used to select or modify a program parameter, and a large button in the center to accept the parameter change and move or skip to the next step or icon. The right upper button is used for manual on/off and the upper left button is used for program off or to stop irrigation.
Seven buttons with the center four buttons (left, right, up, and down arrows) are used to select or modify a program parameter. A large button accepts the parameter change and moves or skips to the next step or icon. The upper right button manually powers the timer on or off while the upper left button is used to stop irrigation.

Make sure to install the valve with the flow direction arrow engraved on the side pointed away from the water source, and with the solenoid on the outlet side of (downstream from) the valve.

Recommendations: Wrap all male pipe thread fittings with Teflon tape. Do not use pipe cement on the valve as it will damage the valve and void the warranty.

Battery installation

This timer requires two AA batteries (alkaline battery recommended)

  1. To install the batteries, unthread the gray battery compartment cover on the front side of the timer and insert two AA batteries. The polarity is marked for direction on the back of the timer.
  2. Thread battery cover clockwise to close.
  3. If the timer has been programmed, you have a safe period of 60 seconds to replace the batteries without losing the clock.
    Review the instruction manual included with the unit for details.

Installation into a PVC pipe or to pipe thread

  1. If installation is into a PVC pipe, first shut off the main water supply.
  2. We recommend installing a 3/4″ manual ball or gate valve before the battery operated timer. This ball valve can be very useful as an emergency backup to turn the system off. This type of arrangement is used by professional installers.
  3. Turn the water supply on to flush the line and then shut the water supply off using the new ball or gate valve.
  4. Install the timer a minimum of 6” above ground and wrapping TEFLON tape on the 3/4” male adapter thread or nipple (see detail instruction in the box).
  5. Turn the water supply on again to pressurize the system. The timer will open momentarily and then will shut off.
  6. Test the timer using the manual on/off button located on the upper right side. Press the button on. The timer will turn on. Check that the system is working and that there are no leaks. Press the button again and the timer will turn off.
  7. Program the timer.
    Review the instruction manual included with the unit for details.

Adding a rain sensor or any other closed contact sensor

  1. If a rain sensor or other closed contact sensor is used, cut the yellow wires and add the sensor per the sensor instructions, making sure to use a waterproof wire connection.