What is a sprinkler wedge used for?

A sprinkler wedge is effectively used to temporarily block the flow of water from a fire protection sprinkler system. The design of the wedge allows it to fit securely and create a seal in the sprinkler head, preventing water from discharging until it is needed during an actual fire event. The simplicity of the triangular shape, typically made of wood, makes it an easy-to-use tool for firefighters or maintenance personnel when they need to perform work on or around the sprinkler system without the risk of accidental activation.

In contrast, other options may reflect different kinds of tools or components used in various situations but do not serve the specific function of blocking water flow effectively in the context of sprinkler systems. A piece of lead alloy or a torpedo-shaped blocker may relate to other systems or technologies, while a rubber cap with a tensioning band might be used for different sealing purposes but lacks the specific shape and ease of application represented by the wooden wedge.