Water sprinkler system

NFPA 16A Standard for the Installation of Closed-Head Foam-Water Sprinkler Systems, 1994 edition. National Fire Protection Association, Quincy, MA. 

But I do want it to look-you know, I want to fit in. I won t cut my grass twice a week and I won t edge unless I have to. I m not going to have the most meticulous yard and a water sprinkler system. I ll water by hand, if I have to, occasionally in the summer. So I d say I m more of a follower. I want to do just enough work to fit in. 

The foam-water sprinkler system is basically the same as a sprinkler system except foam concentrate is proportioned into the water causing foam to be discharged. These systems can flow either water or foam effectively. 

With the exception of high expansion foams, all other foams can be used in foam-water sprinkler system. However, AFFF is the most versatile agent because of its spreading capability and it can be applied through ordinary sprinkler heads. 

In the majority of applications in processing facilities handling flammable gases or liquids, or liquefied flammable gases, fixed water-based fire protection systems will control, but not extinguish, the fire. Foam-water sprinkler systems are an alternative to water sprinkler systems. Both water and foam-water sprinkler systems are discussed in Chapter 7. 

Fire extinguishment can be attained with certain products by using a sprinkler system that discharges a low expansion foam or AFFF agent, typically at concentrations of 1%, 3%, or 6% with water. Foam-water sprinkler systems have been successfully tested with ordinary products and containerized storage of flammable and combustible liquids. The cooling capabilities of foam-water... 

Within 20 to 35 minutes after the heater was fired, a fire-water sprinkler system tripped. A heater flame failure alarm occurred a short time later. Witnesses stated flames were over 50 ft. (15 m) high in approximately five seconds after the tube ruptured. The fire damages... 

Closed-Head Foam-Water Sprinkler Systems 16A... 

Deluge Foam-Water Sprinkler Systems NFPA 25... 

There are two different types of water sprinkler systems, wet-pipe and dry-pipe. The lines leading to the sprinkler heads are full of water in a wet-pipe system so that water will be discharged immediately from an open sprinkler head, while in a dry-pipe system, the lines are full of air under pressure instead of water. This latter type of unit should be used where the temperature is not maintained above freezing at aU times. Both types of systems include a main control valve which is designed not only to supply water to the sprinkler heads but also to provide a mechanism to cause an alarm to sound. The valves also usually provide a visual indication of whether they are open or closed. Except during maintenance, they should be in the open position. There are a number of design features for these valves which are beyond the scope of this document, except to note that some are intended to avoid false alarms due to surges or variations in the water supply pressure to the system. 

NFPA 16, Foam-Water Sprinkler Systems and Spray Systems... 

NFPA 25, Inspection, Testing and Maintenance of Water Based Fire Protection Systems, provides requirements and procedures for ensuring that the systems discussed in the section will perform as intended. The standard provides requirements for proper inspection, test, and maintenance procedures for sprinkler, standpipe, and underground supply systems, as well as fire pumps, water storage tanks, spray systems, and foam-water sprinkler systems. Other chapters address record retention provisions, valve inspection procedures, and system impairment procedures. 

The space or room containing the incinerator combustion chambers and their accompanying burners should have a fire detection and alarm system. Fire protection may be provided by automatic extinguishing means such as a water sprinkler system or a fire hose station. In particular applications, foam or powder may be more appropriate. Depending on the radiation level expected for some of the components, an automatic or remotely actuated suppression system may be required. 

Brugman HH (2004) Corrosion and microbiological control in fire water sprinkler systems. Paper No. 04512. CORROSlON-2004, NACE IntemationaL USA... 

Water-reactive chemicals. Certain chemicals, including sodium, potassium, and many metal hydrides, react with water, producing heat and flammable gases. Other chemicals may burn upon contact with water. Storage areas used to hold water-reactive chemicals should be designed to prevent accidental contact with water. For example, these areas should not be equipped with automatic water sprinkler systems. Segregate water-re-active chemicals from other combustible materials, and be certain that the area is of fire-resistant construction. 

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