Choosing the right sprinkler

Is a sprinkler system suitable for my building?

The fire service nationally has developed considerable experience and knowledge of sprinkler systems. Cheshire Fire and Rescue Service has a lead officer in your local Protection team who will be able to offer you specific advice.

There are several types of automatic suppression available for buildings:

Wet Sprinkler System

This is the most common type of sprinkler system. The pipework of the sprinkler system is constantly maintained with water at all times. In the event of a fire the sprinkler head directly above the fire will activate discharging water direct to fire.

Dry Sprinkler System

These types of systems tend to be installed in areas, where there is a chance of the pipework freezing. The pipework of these systems consist of air or nitrogen. In the event of a fire the air pressure drops which opens a valve to allow water in the pipework delivering water from the sprinkler head above the fire.

Pre-Action Fire Sprinkler

These sprinkler systems are similar to the the dry sprinkler system. However they are only activated by a combination events first the drop in pressure to allow water in the pipes. Secondly the individual sprinkler head activated. These systems are used where there is a likely hood of accidental discharge for instance via a damaged sprinkler head. 

Misting Systems

This type of system uses water, high pressure and a specialised sprinkler head to form fine water droplets. When a misting system operates it allows the water mist to control or extinguish a fire.This is achieved by the tiny droplets forming a 'fog' effect to cool the flame and surrounding gases, absorbing the hot air. 

Leaflet - Think Sprinkler

Last updated: Thursday 01 April 2021