At Backflow Direct, we pride ourselves on providing high-quality, certified backflow prevention assemblies, pressure-relief valves, and more to fire service companies, contractors, and various other industries in need of backflow preventers or replacements assemblies. Designed to ensure that water does not flow back along the desired flow direction, backflow prevention devices play an integral role in fire sprinkler systems and the like. Chemicals or toxins from a fire sprinkler system, or other sources, must not flow back into your municipal water supply.