{"id":383,"date":"2012-04-20T18:07:20","date_gmt":"2012-04-20T18:07:20","guid":{"rendered":"http:\/\/www.wmsprinkler.com\/?p=179"},"modified":"2022-01-19T19:48:47","modified_gmt":"2022-01-19T19:48:47","slug":"what-is-a-standpipe-system","status":"publish","type":"post","link":"https:\/\/www.wmfireprotection.com\/blog\/what-is-a-standpipe-system\/","title":{"rendered":"What is a Standpipe System?"},"content":{"rendered":"\n<p>Standpipe systems are a series of pipes which connect a water supply to hose connections, basically an extension of the fire hydrant system. They are designed to provide a pre-piped water system for building occupants or the fire department. Standpipe systems are designed to provide fire protection water for hose lines in strategically placed locations inside a building or structure. <\/p>\n\n\n\n<p>Some older buildings only have standpipe systems while many newer buildings will have a combination system, which supplies the fire sprinkler system and the standpipe system. They are most common in large floor area buildings, where most of the facility may be some distance from an outside entrance, and in multistory buildings to prevent long lengths of hose in stairwells and on the ground.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Types of Standpipe Systems<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>There are three classes of standpipe systems:<\/strong><\/h3>\n\n\n\n<p>Class I \u2013 A Class I standpipe system\nshall provide a 2 1\/2 inch hose connection for use primarily by trained\npersonnel or by the fire department during initial response. This class has no\nhose attached. The fire department will usually carry hose packs to the floor\nlevel, typically a stairwell, where they will start their operations and\nconnect to the standpipe system. These connections must match the hose thread\nutilized by the fire department.<\/p>\n\n\n\n<p>Class II \u2013 A Class II standpipe\nsystem shall provide 1 1\/2 inch hose stations to supply water for use primarily\nby trained personnel or by the fire department during initial response. These\nare typically found in cabinets with 100\u2019 of hose.<\/p>\n\n\n\n<p>Class III \u2013 A Class III standpipe\nsystem shall provide 1 1\/2 inch hose stations to supply water for use by\ntrained personnel and a 2 1\/2 inch hose connection to supply a larger volume of\nwater for use by fire departments and those trained in heavy fire streams. Many\ntimes these connections will provide a 2-1\/2 inch reducer to a 1-1\/2 hose\nconnection.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>NFPA 25 Compliance<\/strong><\/h3>\n\n\n\n<p>All standpipe systems are required to be maintained in compliance with NFPA 25. The standard requires a weekly\/monthly inspection of the control valves. A quarterly inspection of the pressure regulating devices, piping, and hose connections is required. An annual inspection of the cabinet, hose, and hose storage device is required. The alarm device, hose nozzle, and hose storage device shall be tested annually. The hose shall be tested every 3\/5 years. The pressure control valves and pressure reducing valves shall be tested every 5 years. The standpipe system shall have a hydrostatic test, flow test, and main drain test every 5 years. The hydrostatic test is at 200 psi for 2 hours, or 50 psi in excess of the maximum working pressure.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Do you need to have your Standpipe System Inspected?<\/strong><\/h3>\n\n\n\n<p><a rel=\"noreferrer noopener\" href=\"http:\/\/www.wmsprinkler.com\" target=\"_blank\">W &amp; M Fire Protection <\/a> is a licensed and insured fire suppression contractor serving the New York City and the entire tri-state area. We provide inspections, service and maintenance that meet or exceed all National Fire Protection Association (NFPA) <a href=\"https:\/\/www.wmfireprotection.com\/code-compliance\">codes<\/a> and standards. Please do not hesitate to <a href=\"https:\/\/www.wmfireprotection.com\/contact-us\">contact us<\/a> with any questions regarding your standpipe or fire sprinkler system.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Standpipe systems are a series of pipes which connect a water supply to hose connections, basically an extension of the fire hydrant system. They are designed to provide a pre-piped water system for building occupants or the fire department. Standpipe&hellip; <a href=\"https:\/\/www.wmfireprotection.com\/blog\/what-is-a-standpipe-system\/\" class=\"more-link\">Continue Reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-383","post","type-post","status-publish","format-standard","hentry","category-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What is a Standpipe System? \u2502 W&amp;M Fire Protection<\/title>\n<meta name=\"description\" content=\"Standpipe systems are a series of pipes that connect a water supply to hose connections. 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