Which hose appliance combines two hose lines into one?

The Siamese is a hose appliance specifically designed to combine two hose lines into a single larger line. This is particularly useful when a greater volume of water is needed than one line can supply. In firefighting operations, using a Siamese allows two different sources of water to converge, maximizing flow capacity and ensuring that adequate pressure and volume are maintained when tackling large fires.

When using a Siamese, firefighters can connect hoses from two different engines or sources. This is particularly beneficial in situations where one engine may not provide enough water, ensuring a continuous and powerful stream reaching the fire. The Siamese connection is typically designed to maintain consistent pressure and create a unified flow, which is crucial in effective firefighting tactics.

The concepts associated with this type of appliance are vital for understanding how to manage hose lines effectively during an emergency response.