Meaning & use

fire riser

noun·Advancedtechnical

Last updated

UK/ˈfaɪ.ər ˌraɪ.zər/
US/ˈfaɪ.ɚ ˌraɪ.zɚ/

Meaning

  1. nouncountabletechnical

    A vertical pipe in a building that supplies water to hoses and sprinklers on the upper floors.

    Grammar: Countable: a fire riser in each stairwell, two fire risers.

    Patterns

    • the fire riser in something
    • connect something to the fire riser

    The firefighters connected their hoses to the fire riser on the fourth floor.

    Each stairwell has a fire riser painted bright red.

    The inspector checked the pressure in the fire riser during the annual test.

Word forms

pluralfire risers

Common combinations

dry fire riser
A dry fire riser stays empty until firefighters pump water into it.
wet fire riser
A wet fire riser is always full of water.
test the fire riser
The caretaker must test the fire riser every year.
fire riser room
The valves are kept in the fire riser room.
connect to the fire riser
Crews connected to the fire riser at street level.

Synonyms and how they differ

standpipe
A standpipe is a closely related vertical pipe for firefighting water, and the term is common in the US, while fire riser also covers sprinkler supply risers.
riser
Riser alone is broader and could be any vertical pipe or duct, while fire riser clearly means the fire-safety one.
water main
A water main is the large underground supply pipe in the street, not the vertical pipe inside a building.

Word family

riser noun
a vertical pipe or cable run in a building
sprinkler noun
a device that sprays water to put out fire
fire hydrant noun
a street outlet for firefighting water
fire safety noun
measures to prevent and fight fires

Commonly confused: fire riser or fire hydrant?

fire riser vs fire hydrant

A fire hydrant is an outlet on the street. A fire riser is the pipe inside a building that carries water upward.

Practice

Firefighters in a tall building connect their hoses to the ______ to get water on the upper floors.

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