Control Valves and Drains Introduction

Typical fire sprinkler system in a commercial building

Automatic sprinklers are the most reliable and effective fire-protection devices available today — provided they operate correctly. To determine if a sprinkler system can adequately protect a property, underwriters should be familiar with the components, operation, and testing of the systems, as well as potential causes for failure.

A sprinkler system consists of the following components:

  • a water supply and fire department connection
  • underground and aboveground pipes
  • valves and drains
  • alarms and test connections
  • sprinklers