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NFPA 750
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humanfactoreng123
Industrial
There are three main categories of sprinkler systems.
1. Low pressure system – conventional watersprinkler system.
Working-pressure below 10 bars. A certain type, called Mist Waterspray System, can be identified in this group.
This type of systems has at least 70-80 % water consumption compared to the conventional watersprinkler system.
2. Medium pressure system – mist waterspray system or watermist system.
The pressure range is from 10 up to 40 bars. The water consumption is at least
50-70 % of the conventional watersprinkler system.
3. Highpressure system – watermist or waterfog system.
The pressure range is working from 40 bars up to 100/150/200 bars.
The difference between mist and fog is the size of the droplets.
Fog has in average smaller droplets than mist.
A highpressure waterfog system has advantages over the low- and medium pressure systems
Total weight and the amount of water is reduced to a minimum.
Cooling effect is extreme high.
The grade of heat expansion.
Sizes of drain and scupper system is reduced to a minimum.
Dimension of pipes is small.
Services | Contact Us | Sprinkler Systems | Manufacturers List | Safety Equipment
Add Coastal Fire ™ to your favorites!
GLOAL CORPORATE OFFICES
INFO@COASTALFIRE.COM
Phone (504)-488-1212
fax (504)-488-8847
8201 Peach St.
New Orleans, LA 70118 USA
Texas Office 2860 Antoine Road Houston Texas 77092 USA
1-800-353-1652
JOHN HEYWOOD, P.E., CSP
SENIOR SAFETY ENGINEER
Saint Louis, Missouri 63125
1. Low pressure system – conventional watersprinkler system.
Working-pressure below 10 bars. A certain type, called Mist Waterspray System, can be identified in this group.
This type of systems has at least 70-80 % water consumption compared to the conventional watersprinkler system.
2. Medium pressure system – mist waterspray system or watermist system.
The pressure range is from 10 up to 40 bars. The water consumption is at least
50-70 % of the conventional watersprinkler system.
3. Highpressure system – watermist or waterfog system.
The pressure range is working from 40 bars up to 100/150/200 bars.
The difference between mist and fog is the size of the droplets.
Fog has in average smaller droplets than mist.
A highpressure waterfog system has advantages over the low- and medium pressure systems
Total weight and the amount of water is reduced to a minimum.
Cooling effect is extreme high.
The grade of heat expansion.
Sizes of drain and scupper system is reduced to a minimum.
Dimension of pipes is small.
Services | Contact Us | Sprinkler Systems | Manufacturers List | Safety Equipment
Add Coastal Fire ™ to your favorites!
GLOAL CORPORATE OFFICES
INFO@COASTALFIRE.COM
Phone (504)-488-1212
fax (504)-488-8847
8201 Peach St.
New Orleans, LA 70118 USA
Texas Office 2860 Antoine Road Houston Texas 77092 USA
1-800-353-1652
JOHN HEYWOOD, P.E., CSP
SENIOR SAFETY ENGINEER
Saint Louis, Missouri 63125
Depending on the system, different pipe is used, high pressure single fluid systems (Hifog, Fogtec) generally use stainless steel with 10-40 mm ID's. Standard approved high pressure compression fittings are used (like Swage-lok)
SS pipe bending of smalled sizes by hand benders, larger sizes by hydraulic bender that doesn't collaspse tube (that mean mandrel bender not shoe and roller type)
Hope this helps.
Ken
SS pipe bending of smalled sizes by hand benders, larger sizes by hydraulic bender that doesn't collaspse tube (that mean mandrel bender not shoe and roller type)
Hope this helps.
Ken
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