What feature do all sprinklers have to enhance water coverage?

All sprinklers are equipped with deflectors, which play a crucial role in enhancing water coverage. Deflectors are designed to redirect the flow of water from the sprinkler head into a specific pattern. This ensures that the water is effectively distributed over the designated area, allowing for optimal coverage and minimizing the chances of dry spots. The shape and design of the deflector can vary depending on the type of sprinkler, but their primary function remains the same: to disperse water uniformly across surfaces, thereby improving the sprinkler system's overall effectiveness in fire suppression.

While pressure regulators manage the water pressure and ensure consistent flow rates, and deluge heads are used in specific systems requiring rapid water discharge, these features do not directly influence coverage patterns. Venturi tubes might assist in specific applications, but they do not serve the common function of enhancing coverage across all sprinkler types. In contrast, deflectors are a standard feature found in all sprinklers, highlighting their importance in fire protection systems.