What is the term for the three hose connections at the top of a standpipe riser?

The correct term for the three hose connections at the top of a standpipe riser is a roof manifold. This component is designed to facilitate easy access for firefighters to connect hoses when they are combating a fire. The roof manifold typically allows for multiple connections to be made simultaneously, enhancing the efficiency of water delivery to the firefighting operations.

Using a roof manifold provides strategic advantages in firefighting, especially in high-rise buildings, where elevation and access may be challenging. The design of the manifold ensures that firefighters can quickly and effectively establish a water supply at a higher elevation, which is crucial for fighting fires in upper floors.

Other terms associated with firefighting infrastructure, such as water outlet or firehose connection, do not specifically refer to the arrangement and purpose of the connections at the very top of a standpipe riser. A standpipe head can refer to the overall assembly but doesn’t specifically indicate the multi-connection function that is distinguished by the roof manifold. Therefore, roof manifold is the most accurate term in this context.