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A typical fire suppression system

UL-300 Wet Chemical Automatic Fixed Fire Suppression Systems

"Wet chemical fire-extinguishing systems shall comply with standard UL 300, Fire Testing of Fire Extinguishing Systems for Protection of Restaurant Cooking Areas...  Hazards and equipment that can be protected using wet chemical extinguishing systems include the following:
(1) Restaurant, commercial, and institutional hoods
(2) Plenums, ducts, and filters with their associated cooking appliances
(3) Special grease removal devices
(4) Odor control devices
(5) Energy recovery devices installed in the exhaust system

Each protected cooking appliance, individual hood, and branch exhaust duct directly connected to the hood shall be protected by a system or systems designed for simultaneous operation...  All systems shall have both automatic and manual methods of actuation...  The extinguishing system shall be connected to the fire alarm system, if provided, in accordance with the requirements of NFPA 72®, National Fire Alarm Code®, so that the actuation of the extinguishing system will sound the fire alarm as well as provide the function of the extinguishing system."
-NFPA 17A - 5.1,5.2

Specialized automatic systems, often referred to as Restaurant Fire Suppression systems, are designed to protect the following areas associated with cooking equipment; ventilating equipment including hoods, ducts, plenums, and filters; fryers; griddles and range tops; upright, natural charcoal, or chain-type broilers; electric, lava rock, mesquite or gas-radiant char-broilers and woks.

The system is typically utilized in restaurants, hospitals, nursing homes, hotels, schools, airports, and other similar facilities.

The system is capable of automatic detection and actuation and/or remote manual actuation. Additional equipment is available for mechanical or electrical gas line shut-off applications.

The detection portion of the fire suppression system allows for automatic detection by means of specific alloy rated fusible links, which, when the temperature exceeds the rating of the link, the link separates, allowing the regulated release to actuate.

Read NAFED's article on UL300

Ansul - The Most Trusted Name in Fire Protection

R-102

ANSUL R-102 Fire Suppression Systems discharge ANSULEX® Liquid Fire Suppressant, quickly knocking down flames and cooling hoot surfaces, while generating a tough vapor securing blanket that prevents reflash.  With nearly neutral pH, R-102 systems are exceptionally friendly to cooking equipment.

ANSUL R-102 systems are offered in two basic designs: appliance-specific, in which nozzles are aimed at specific hazard areas of each appliance; and overlapping, where the nozzles are arranged to overlap and provide a "fire-free zone" throughout a group of appliances.

Ansulex Low pH liquid fire suppressant, which rapidly suppresses fires, cools hot surfaces to prevent fire reflash, and cleans up fast.
Stainless steel enclosure, which blends into the surroundings of today's modern kitchens.

Also check out Ansul's Interactive Guide to Restaurant Fire Protection

View Brochure (PDF), Data-Sheet (PDF), Owner's Manual (PDF)

Piranha

The only agent-plus-water fire suppression hybrid on the market today, ANSUL PIRANHA systems outperform all conventional single-agent systems on a number of fronts.  ANSUL PIRANHA systems attack fire using the rapid flame knockdown and securing capabilities of PRX™ Liquid Fire Suppressant.  Then, the superior cooling effects of water follow, quickly cooling the cooking media and further halping to prevent reflash.

In UL300 testing, the ANSUL PIRANHA system cooled hot grease 15 times faster than single-agent wet systems, required 60% less chemical agent, covered hazard areas better and provided a cost-effective means to protect the cooking equipment.

ANSUL PIRANHA systems are also available with fully self contained water units to simplify installation, especially in areas where the minimum 33 psi water-pressure is not available (only 22 psi required for some smaller systems).  The Self-Contained Water Supply offers three minutes of water discharge to help assure hot oils and greases remain well below re-ignition temperatures.

ANSUL PIRANHA systems are available in various sizes that can be combined for multiple configurations to expand the suppression system covered.

Click here to view Ansul.com

WHDR

Kidde Wet Chemical Systems exceed the UL-300 standard. This new standard is brought about by the evolution of new cooking trends and appliances that operate at higher temperatures. Kidde Systems also comply with NFPA 96 and 17A standards.

 
Superior wet agent for quicker flame knockdown and faster fire suppression.
Quicker after-fire cleanup.
Unmatched coverage that uses fewer discharge nozzles and flow points to protect the hazard.

Click here to view KiddeFireSystems.com

 

Kitchen Knight II

Cooking appliances today allow for the potentially dangerous mixture of flammable oils and greases with high efficiency heat sources, creating an environment in which fire is always a threat. Ventilating systems deposit grease from exhausted vapors throughout the hood, filters and ducts. Electrical power lines and gas service lines add fuel to the hazard area, and must be shut off in case of fire. Alarms and other electrical devices must be activated. The Pyro-Chem KITCHEN KNIGHT II system can protect all these diverse hazard areas and perform all the necessary auxiliary functions.

UL and ULC Approved
Complies with NFPA Standard 17A and 96
Meets the requirements of the Building Officials and Code Administrators
 
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Last modified: February 01, 2008