「Defining Means Of Egress In Construction In The Usa」の変更履歴

2026年1月11日 (日)

• 最新前 23:162026年1月11日 (日) 23:16‎ Brigette2018 トーク 投稿記録‎ 7,874バイト +7,874‎ ページの作成:「Unlike different methods the place particular person heads activate, all sprinkler heads in a deluge system are open. Only after both situations are met does a pre-action valve open, filling the pipes with water, which then discharges via the activated sprinkler heads. When the air pressure drops due to an activated head, the valve opens, permitting water to flow into the pipes after which out through the activated sprinklers. In Contrast To wet pipe methods, dry pi…」