Siamese connection

A siamese connection or splitter in fire protection engineering is a pipe fitting that allows two or more fire hoses to be connected to a single standpipe riser at the same general location.

Two 3-way splitters with Storz connectors

It is so-called due to the visual similarity to siamese twins.

References

• Ramsey, Charles (2000). Hoke, John Ray Jr. (ed.). Architectural Graphics Standards (10th Edition). John Wiley & Sons, Inc. ISBN 0-471-34816-3.