Backflow preventers play an important part in keeping the connection between a building’s fire protection system and its water supply safe. A backflow device is designed with the goal of keeping the flow of water within the fire sprinkler system going in only one direction: from the water main to the system’s pipes. This kind of functionality is key when it comes to preventing any potential contamination risks that come from the fire sprinkler system reversing its flow and carrying hazardous material back into the public water supply.