Wuhan Spico Machinery & Electronics Co., Ltd. |
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For Water Use Ductile Cast Iron Made Centrifugal Fire Pump With UL/FM/NFPA20 Certification
Horizontal Split Case:
Horizontal Split Case (HSC) pumps are given their name due to the
“split”” design of the casing, where the casing cover can be lifted
off of the pump to expose the internal components. These components
include the impeller, bearings, pump shaft, and so on. HSC pumps
have two bearings, located on either side of the impeller, which
are useful to withstand the large amount of vibration and thrust
forces often caused by water turbulence in the suction piping.
The pump casings are often designed to handle higher working
pressures, and are often heavier. The durability of the HSC design
allows the pump to be used for very large water flows – often in
excess of 5000 GPM. It should be noted that an HSC pump is not
always mounted horizontally, it is possible to have the same
durability design features and have the pump designed to be mounted
vertically.
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.
Types of pumps used for fire service include: horizontal split
case, vertical split case, vertical inline, vertical turbine, and
end suction.
Performance Ranges:
UL: | Q: 500-4000GPM | H:100-190PSI |
FM: | Q: 500-4000GPM | H:100-190PSI |
CCCF: | Q:20-500L/S | H:0.42-2.0Mpa |
NFPA20: | Q: 300-8000GPM | H:60-300PSI |
Product Type:
Diesel engine driven fire pump sets with air cooling & water
cooling
NFPA20 Package
Advantage:
Service:
1. To supply high-quality products with reasonable prices in food additive industry. |
2. To follow orders and arrange shipping in time, providing complete documents |
for Customs clearance according to different export policies in different countries. |