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Fire Hydrant and Water Main Valve Inspections and Maintenance

Fire Hydrants

Welcome to the world's first interactive fire hydrant information resource. Here you will find some basic information about fire hydrants and some common components. Move your cursor over the fire hydrant on the left for a description and link to the component.

This information is provided to you as a basic guide to some of the more common components of a fire hydrant and is not meant as a guide for restoration work. Our qualified technicians will be happy to service your fire hydrant needs click here for a list of services we provide.

Don't hesitate to contact us today if you have any questions.

Some interesting facts about fire hydrants:

  • Brand new fire hydrants usually have only a one year warranty (some have three).
  • Some older hydrants such as the Big Lawson and the Lawco-500 should be replaced and put in a museum.
  • Private fire hydrants have a designated body colour of RED in the Ottawa area. Contact us today if you are not sure if you own the fire hydrant on your property.
  • All hydrants are required to have a colour code of blue, green, orange, or red tops and caps. See the Ontario Fire Code. If it's white/yellow it hasn't been colour coded yet.
  • A black top means the fire hydrant is out of service.

Isolation Valve


Drain Valve
Isolation Valve
Lower Stem
Main Valve Ball
Main Valve Disc
Main Valve Seat
Oil Screw
Operating Nut
Pumper / Hose Nozzle Cap
Safety Coupling
Safety Flange
Upper Stem

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