Pre-action sprinkler head
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United States of America Patent
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Jun 12, 2018
Issued Date -
N/A
app pub date -
Nov 12, 2015
filing date -
Nov 14, 2014
priority date (Note) -
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Abstract
A double interlock pre-action sprinkler head has a pipe having an inlet and outlet to permit flow of fire suppressant fluid through the pipe. A dedicated electrically actuatable valve is connected to the pipe to prevent fire suppressant fluid in sprinkler system piping from entering the pipe. The electrically actuatable valve opens in response to a signal from a fire detector to permit fire suppressant fluid to flow into the pipe. A heat-sensitive valve is connected to the pipe and opens to permit fire suppressant fluid to exit the pipe when ambient temperature at the heat-sensitive valve is at or above a predefined temperature. The sprinkler head provides a dry pipe solution for a single room while being fully integratable into any building-wide sprinkler system, including wet pipe systems.
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