manifold
MAN-ih-fohld
/ˈmæn.ɪ.foʊld/
A pipe chamber or branch trunk with multiple outlets or inlets to distribute or collect fluids.
Implies a single central hub distributing fluid to or gathering fluid from multiple distinct circuits.
The story behind the word. Derived from Old English 'manigfeald' meaning 'having many layers or folds'. By the mid-19th century, engineers adopted the word to describe mechanical devices with multiple branching pipes coming off one main line.
Word relationships
- junction hub: Junction hub is an informal descriptor, while manifold is the formal engineering term for multi-port distribution chambers.
- single-line pipe: A single-line pipe carries fluid along a single unbranched path.
Commonly confused with
- multi-fold: Multifold means many times as great, while manifold as a noun is a fluid distribution hardware component.
Word family
- manifolded (adjective): Connected by or arranged with manifolds.
Collocations
- intake manifold
- distribution manifold
- exhaust manifold
- manifold pressure
Example sentences
- "The radiant floor heating system channels hot water from the boiler through a stainless steel manifold." Hydronic heating
- "Exhaust gases travel from each engine cylinder directly into the heavy cast-iron intake manifold." Automotive piping
Memory hook
MANY FOLDS of pipes meeting at one central junction. Many paths from one manifold.
When not to use
Do not use for simple straight couplings or two-way valve connections.
Fun facts
- In mathematics, 'manifold' refers to a topological space that locally resembles Euclidean space, a concept borrowed directly from the branching physical concept.
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