What is the purpose of an inspector's test valve?

The purpose of an inspector's test valve is to check the operation of the fire sprinkler system and to verify that there is adequate water availability for firefighting purposes. This valve allows a controlled release of water from the system to monitor its performance, ensuring that the system activates correctly and that the water supply meets the necessary flow and pressure requirements. By conducting a flow test through the inspector's test valve, inspectors can assess if the sprinkler system is functional and ready to provide protection in the event of a fire.

This practice is essential for maintaining compliance with fire safety standards and for confirming that the system operates effectively during an emergency. The flow from this specific test helps in identifying any potential issues in the system, providing a vital check on its readiness to safeguard the building and its occupants.