Use In-Line valves in locations where the use of a pressure vacuum breaker (PVB) or a double-check valve is required by city codes to protect against back flow. Check your local city codes to determine what type of valves are required. In-Line valves are installed below ground in a valve box down stream from the main line from a PVB or double-check valve. In-Line valves will not prevent back flow on their own: they need the help of a back flow prevention device.

• Buna-N diaphragm offers superior performance in harsh water environments
• Reliable, non-clogging design
• Reverse Flow design reduces stress on diaphragm for dependable operation
• In-line design minimizes pressure loss of dirt and debris during installation and system start-up
• Operates automatically or manually with manual bleed screw
• Works with any standard sprinkler timer
• Designed for below-ground installation, out of sight and away from playful hands
• Energy efficient, low power encapsulated solenoid with captured plunger