{"id":115,"date":"2012-04-18T20:01:52","date_gmt":"2012-04-18T20:01:52","guid":{"rendered":"http:\/\/www.wmsprinkler.com\/?p=115"},"modified":"2020-09-04T16:18:31","modified_gmt":"2020-09-04T16:18:31","slug":"what-is-a-dry-sprinkler-system","status":"publish","type":"post","link":"https:\/\/www.wmfireprotection.com\/blog\/what-is-a-dry-sprinkler-system\/","title":{"rendered":"What is a Dry Sprinkler System?"},"content":{"rendered":"\n

Unlike a wet system<\/a> that is filled with water, a dry sprinkler system is filled with pressurized air. When heat opens a sprinkler head, the loss of air pressure in the piping will cause a special dry valve to open, or trip. Piping will then fill with water and out of any open sprinkler head. The water flowing into the system will also sound a local alarm that alerts people in the building. The alarm may also be transmitted to a central station company. This station will then notify the local Fire Department that there is a fire. <\/p>\n\n\n\n

Where are Dry Sprinkler Systems Used?<\/strong><\/h3>\n\n\n\n

Dry sprinkler systems are most commonly used when a wet pipe system cannot be heated to prevent freezing. In regions using NFPA regulations, dry pipe systems cannot be installed unless the range of ambient temperatures reaches below 40F. <\/p>\n\n\n\n

Common Dry Sprinkler Applications<\/strong><\/h3>\n\n\n\n