http://www.ichacha.net/fire%20hydrant.html Web3.1.1 A uniform rating of hydrants is achieved by measuring the flow rate of water at a specified residual pressure. A residual pressure of 1.4 bar (20 psi) is generally recommended to be retained at hydrants when delivering fire flows. 3.1.2 Hydrants having a static pressure of less than 2.8 bar (40 psi) should be rated at one-half of the static

Fire Hydrants - Utilities seattle.gov

Webfire hydrant的意思、解释及翻译：1. a large pipe in the street that firefighters can get water from to use to stop fires from…。了解更多。 WebJan 1, 2024 · A ‘Growing’ Problem with Hydrants. Jan. 1, 2024. When firefighters are forced to take time to locate hydrants hidden by vegetation and other obstructions, it causes unnecessary delays. Brunswick Regional Water and Sewer (H2GO) worked with the local fire department to ensure proper maintenance and operation of the more than 1,500 fire ... phones with voice to text

hydrant中文(繁体)翻译：剑桥词典

Webnoun [ C ] uk / ˈhaɪ.drənt / us / ˈhaɪ.drənt /. a vertical pipe, usually at the side of the road, that is connected to the main water system of a town and can supply water, especially for … WebHydrants. NFPA 291 is published in the 1977 National Fire Codes, Volumel2, and in separate pamphlet form. The document has been completely revised and a new section on the fire flow testing of hydrants has been added. The report has been submitted to letter ballot of the Committee which con- sists oaf 1.0 voting members, of whom 9 have voted ... phones with vr chip