Exhauster
3.119. Exhauster: a device that, upon activation of the sprinkler head, accelerates the activation of the sprinkler air signal valve by actively venting air pressure from the supply pipeline
Source: "SP 5.13130.2009. Code of Practice. Fire Protection Systems. Automatic Fire Alarm and Fire Extinguishing Installations. Design Standards and Rules" (together with "Methodology for Calculating Parameters of Automatic Fire Extinguishing Installations during Surface Fire Extinguishing with Water and Low-Expansion Foam", "Methodology for Calculating Parameters of High-Expansion Foam Fire Extinguishing Installations", "Methodology for Calculating the Mass of Gas Fire Extinguishing Agents" "Substances for gas-based fire extinguishing systems when using volumetric methods", "Methodology for hydraulic calculation of low-pressure carbon dioxide fire extinguishing systems", "General provisions for calculating modular powder fire extinguishing systems", "Methodology for calculating automatic aerosol fire extinguishing systems", "Methodology for calculating excess pressure during delivery of fire-extinguishing aerosol in..."