What is the primary function of a Siamese connection in a sprinkler system?

The primary function of a Siamese connection in a sprinkler system is to allow dual water supply lines. This design is crucial in situations where a building's sprinkler system may require an increased water flow for effective fire suppression. The Siamese connection typically consists of two female inlets that can be connected to two different water supply sources, such as fire hydrants or water tankers. By enabling two hose lines to supply water simultaneously, the system significantly enhances the amount of water available to combat a fire. This provides firefighters with the capability to deliver an adequate water supply rapidly and efficiently, which is vital during operation, especially in large-scale fires or when there is a high demand for water flow.

While the other options may have relevance in different contexts, they do not represent the fundamental purpose of a Siamese connection within a sprinkler system. The primary focus remains on providing increased water supply through dual connections.