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|Control Panel::||CNP NM FIRE||Color::||Blue|
NFPA20 Standard Emergency Fire Pump With Diesel Engine Driven For Water Supply Firefighting Application
Types of pumps used for fire service include:
horizontal split case, vertical split case, vertical inline, vertical turbine, and end suction.
The fire pump starts when the pressure in the fire sprinkler system drops below a threshold. The sprinkler system pressure drops significantly when one or more fire sprinklers are exposed to heat above their design temperature, and opens, releasing water. Alternately, other fire hoses reels or other firefighting connections are opened, causing a pressure drop in the fire fighting main.
Fire pumps are needed when the local municipal water system cannot provide sufficient pressure to meet the hydraulic design requirements of the fire sprinkler system. This usually occurs if the building is very tall, such as in high-rise buildings, or in systems that require a relatively high terminal pressure at the fire sprinkler in order to provide a large volume of water, such as in storage warehouses. Fire pumps are also needed if fire protection water supply is provided from a ground level water storage tank.
Water supply and drainage occasions in mining, metallurgical engineering ,Municipal, Petrochemical industries with high requirement for reliability but without power supply .
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