However, they are primarily intended to protect the following. Fm global no longer uses the term esfr however esfr sprinklers are viewed as simply k16. Warehouse fire sprinkler codes and impact on storage racks. Many aspects of esfr sprinklers are unique compared to standard spray sprinklers. Quick reference guide this guide is intended for general reference only.
The tyco model esfr1 pendent sprinklers are early suppression, fast response sprinklers having a nominal kfactor of 14. After installation, inspect the link assembly of each model esfr1 sprinkler for damage. Model esfr17 dry type pendent sprinklers early suppression. Figure 2 and by fully engaging seating the wrench on the sprinkler wrench flats ref. Early suppression fast response sprinklers and obstructions. The model esfr 17 drytype sprinkler offers installation savings, less maintenance and less chance of damage compared to inrack sprinklers. Esfr sprinklers the perfect solution to warehousing updated.
Recent significant warehouse fires record storage nj. Reliable sprinklers have been designed and assembled in the united states since 1920 and are suitable to protect a wide range of applications, including commercial, residential, storage, and special applications. Speed esfr sprinkler heads sense a fire and begin spraying water quicker than standard response sprinkler heads. View and download viking esfr technical data manual online.
Esfr early suppression, fast response ceiling mounted sprinklers can be used in warehouses in place of inrack fire sprinkler systems. When using this system for single, double and multiplerow rack storage, viking k25. Early suppression fast response esfr sprinklers were developed to meet the demands of high challenge storage fire scenarios and are a common choice to protect warehouses. Vikings ul listed and fm approved dry esfr sprinklers combine the suppression benefits of an esfr with the advantages of a dry type sprinkler for cold. But what are esfr sprinklers and what is their benefit. Increase sprinkler length within conditioned space, and move water further from freezing conditions. In answering these questions, we will first look at types of systems that are used to protect warehouse occupancies. So, the required flow is 12x1581896 gpm so, can i choose a 2000 gpm pump. Remove any sprinkler that has been painted other than factory applied model hl22 temperature ratings and approvals temperature classification temperature. Globe fire sprinkler remains open for business and focused on the health and safety of our employees while continuing our commitment to our customers. Horizontal offset test number obstruction tip of joist to sprinkler centerline fire location clearance from ceiling to top of apparatus 1 baseline none none under one sprinkler 10 ft. Explanations on esfr sprinkler protection sprinkler age. Early suppression fast response esfr systems viking.
Minimax specific application early suppression fast response esfr. As per the 1989 edition the correct number of spare sprinkler is as follows. Sprinkler centerline fire location clearance from ceiling to top of apparatus 1 baseline none none under one sprinkler 10 ft. The attached list a references wet type oring sealed sprinklers. Esfr sprinklers operate under the concept of getting large water droplets to the fire plume without being broken up on the fall from the sprinkler to the fire. The tyco model esfr 17 upright sprinklers are early suppression, fast response sprinklers having a nominal kfactor of 16. Tyco model esfr1 pendent sprinklers are early suppression, fast response esfr sprinklers having a nominal kfactor of 14. All listings applicable up to 40foot ceiling heights. Esfr early suppression fast response refers to both a concept and a type of sprinkler. High output conventional sprinkler heads output rate 60 gallons per minute. Esfr sprinkler performance is the ability of the sprinkler to provide large amounts of water, in a specific. The use of early suppression fast response esfr sprinkler systems is becoming more prevalent in the protection of warehouse storage occupancies. New sprinklers of the same size, type and temperature rating must be installed. They are suppressionmode sprinklers that are especially advantageous as a means of eliminating the use of inrack sprin klers when protecting highpiled storage.
Response esfr sprinkler is intended for use against severe fire challenges. Esfr are suppression mode sprinklers capable of actual extinguishing the. Early suppression fast response esfr sprinkler protection. I have chosen esfr 25 sprinklers for a warehouse, and i considered the number of activated sprinklers to be 12, and the min gpm of each sprinkler to be 158. The sprinkler models and identification numbers specified herein may incorporate the use of an oring water seal. Jan 27, 2017 i am working on an existing spec warehouse built in 2004 using k14 esfr sprinklers designed at 75 psi. The added benefit to the use of this technology is in most cases, the requirement for rack sprinklers can be circumvented. Nfpa standard for the installation of sprinkler systems. The ceilingbased system became popular over 30 years ago because it could knock down and prevent a fire quickly in facilities with a ceiling 30 feet or lower. They are suppression mode sprinklers that are especially advantageous as a means of eliminating inrack sprinklers when protecting highpiled storage. By examining spare sprinklers provided when systems were installed, the types of sprinklers used in a fire sprinkler system can be identified.
Esfr provides protection that exceeds that of inrack systems. The sprinkler is designed to respond quickly to a growing fire and deliver a heavy discharge of water to suppress the fire. Successful project management of an esfr sprinkler system j. Based on nfpa, 2002 edition code in place at time of construction tables 12. Intermediate temperaturerated esfr pendent sprinklers, k25. The reliable model hl22 is an early suppression fast. Model esfr 1 sprinklers are primarily designed for protection of the following. Pendent sprinkler mx8514 incorporates the capability to suppress. Fire administration national fire academy coffee break. In buildings protected by properly designed and maintained fire sprinklers, over 99%. An introduction to early suppression fast response sprinklers. Sprinklers operating in the remainder of the fire area also cool the ceilinglevel air temperatures while prewetting adjacent combustibles. Once operated, automatic sprinklers cannot be reassembled and reused.
Basically they have no rack storage, and the systems have been designed using standard heads with a k factor of 8. Since nfpa, standard for the installation of sprinkler systems, indicates that you do not need inrack sprinklers if you have. Early suppression fast response esfr sprinklers storage sprinkler u. Model n25 esfr sprinkler specification sprinklers shall be early suppression fast response. We are currently working on a large esfr warehouse project where a large number of electrical conduit banks run and chill water lines that create continuous nonsolid obstructions to the overhead esfr sprinklers and will require additional coverage below. The use of code requirements the following opening. In the mid 1990s, fm global learned through fire testing that an obstruction as small as.
Description viking early suppression fast response esfr upright sprinkler vk520 is a. Changing trends in rack systems demand a closer look at. Stored palletized, solid piled, bin boxes, or shelf. Esfr systems esfr sprinkler systems are designed to extinguish, as opposed to control, a fire. Model esfr 17 drytype sprinkler the tyco model esfr 17 drytype sprinkler is an easy to install, costeffective solution for boxinbox cold storage facilities. That being said, you only calculate 12 esfr sprinklers that exhibit the highest demand. Fhc project examples hydraulic calculation examples. Nfpa allows less than 18 inches clearance from ceiling sprinklers when largescale fire tests for the particular hazard show less clearance is acceptable.
The kfactor for the esfr sprinkler can range from 11. Spare sprinkler head storage cabinet installation select the correct spare sprinkler head cabinet in accordance with the automatic sprinkler systems handbook. Since the late 1980s, early suppression, fast response esfr sprinklers have been viewed as one of the greatest innovations in fire protection since henry parmelee first introduced the automatic sprinkler in 1874. Therefore, structural elements to the building, hvac ducts, conduit, cable trays, and any other mechanical elements need to be placed in strategic locations to avoid obstructing the esfr. The model jl17 esfr sprinkler is intended for installation in accordance with nfpa and fm loss prevention data sheets 20 and 89, as well as the authority having jurisdiction. Esfr number of sprinklers in design area nfpa xchange. New inrack design criteria in nfpa and fm data sheet 89.
The roof level sprinklers are esfr 25mm with a kfactor of 360 and a minimum head pressure of 3. Early suppression fast response esfr sprinklers storage sprinklers esfr sprinklers vk504 esfr dry pendent k242 16. Model esfr17 sprinklers are primarily used for ceilingonly sprinkler protec. The model jl17 esfr sprinkler is designed for ceiling only sprinkler system with no inrack sprinklers required. The visits resulted in multiple recommendations to either replace k14 esfr sprinklers with k17 esfr sprinklers or regulate storage heights to no greater than 15 ft 4. View and download tyco esfr 1 general description online. Eliminate the use of inrack sprinklers when protecting highpiled storage of certain specified materials up to 40 ft.
Fm approved as a quickresponse, storage and nonstorage, sprinkler. The model n25 is fm approved as a quick response storage sprinkler. Informal interpretations offer assistance on technical questions the informal interpretations featured in this post address nfpa, standard for the installation of sprinkler systems, early suppression fast response esfr sprinklers. If storage heights are larger than 25 feet, longitudinal flue spaces are required in addition to the transverse flues. The model esfr17 dry type sprinklers feature all of the same design criteria as 16. Dry type pendent sprinklers early suppression fast response 16. Model jl14 and jl17 esfr sprinklers datasheet fpc datacentre. You also want a solution that can meet your needs today and tomorrow, not one with a built in limit. Automatic sprinkler system basics international fog.
Nfpa standard for the installation of sprinkler systems provides specific details with respect to the use of special application sprinklers, such as esfr sprinklers and the commodities they are intended to protect. Model esfr17 early suppression, fast response pendent. May 04, 2017 esfr versus inrack sprinklers the current sprinkler system of choice is the esfr sprinkler system. This is found in the notes at the end of this table. Prewetting adjacent combustibles helps to prevent the spread of fire beyond the fires origin. If there is a question as to whether a particular sprinkler model incorporates an oring water seal, please contact the sprinkler manufacturer or ul llc for assistance related to sprinkler identification. They are suppressionmode sprinklers that are especially advantageous as a means of eliminating the use of inrack sprinklers when protecting highpiled storage. For csma and esfr sprinklers, the additional sprinklers included in the design area for obstructions do not. The single interlock preaction sys tem piping network is supervised with a propylene glycol solution.
In particular, the model esfr 17 upright sprinklers are designed to operate at substantially lowerend head pressures compared to esfr sprinklers with 14. A cabinet of replacement sprinklers should be provided for this purpose. For early suppression fast response esfr sprinklers, clearance between the sprinkler deflector and top of storage must be at least 36 inches. Important always refer to technical data sheet tfp700 for the installer warning that provides cautions with respect to handling and installation of sprinkler systems and components. Early suppression fast response esfr sprinkler product description the reliable model hl22 is an early suppression fast response esfr sprinkler with a nominal kfactor of 22. Improve safety and reduce headaches by eliminating frozen and burst pipes. The installation and material costs of these systems are more economical than the costs of creating and installing an inrack fire suppression system, often 30% to 50% less. Wrenchtighten the model esfr1 sprinkler using only the wtype 2 sprinkler wrench ref. Beyond the above restrictions, esfr obstructions are the achilles heel of esfr sprinklers systems. We take great pride that globe solutions supply critical life safety applications and remain committed to supporting your construction needs during these challenging times.
The model esfr 25 early suppression fast response sprinkler as the building owner or engineering firm you want a fire protections solution that gives you options options on what you store and options on how things are stored. Ul 1767 standard for earlysuppression fastresponse. In addition, the rack storage below is protected with 20mm sprinkler with a kfactor of 115 and a minimum head pressure of 1. Model esfr17 dry type sprinklers feature all of the same design criteria as 16. How to calculate the flow requirement of an esfr system. Transverse flues are the spaces between adjacent rack uprights or rack bays when looking sidetoside.
Model hl22 esfr sprinkler datasheet fpc datacentre. The concept is that fast response of sprinklers can produce an advantage in a fire if the response is accompanied by an effective discharge density that is, a sprinkler spray capable of fighting its way down through the fire plume in sufficient. Technical specification for model jl14 and jl17 esfr sprinklers. However, it was decided by parties other than myself they need to use esfr sprinklers. A fire sprinkler or sprinkler head is the component of a fire sprinkler system that discharges water when the effects of a fire have been detected, such as when a predetermined temperature has been exceeded. Tyco model esfr25 pendent sprinklers are early suppression, fast response esfr sprinklers having a nominal kfactor of 25. Reliable sprinklers are available in a wide variety of finishes, temperature ratings, and styles. Easy to retrofit into existing upright sprinkler systems can be installed on same branch line as k14 esfr pendent sprinklers protects up to 35 ft 10,7 m high buildings without using inrack sprinklers sprinklers may be spaced up to 12 ft 3,7 m for buildings up to 30 ft 9,1 m. Therefore if a business owner is moving into a building that is equipped with an esfr, and exposed expanded group a plastics is planned for rack storage, the k. Viking vk500 esfr pendent sprinklers may be used in the protection of ordinary types of storage. These lists may not reference all models of oring sealed sprinklers. Reduced freezeups means less impaired systems, displaced tenants, and repair work. Esfr sprinklers solution to warehouse fire protection.
Discussion created by rbjorkman on feb 28, 2018 latest reply on sep 25. An esfr sprinkler system is located in the ceiling structure yet for many categories of product offers fire protection better than inrack systems. Early suppression, fast response sprinklers sprinkler age. Esfr sprinkler comparison testing each of the 3 sprinklers tyco, viking, reliable were tested as follows 12 add tests total.
Early suppression fast response esfr sprinklers are used to protect various occupancies according to the underwriters laboratory ul listing. The tyco model esfr 25 pendent sprinklers are listed by ul for specific applications with a ceiling height greater than 45 ft. Storage sprinklers storage sprinklers storage sprinklers are intended for use in specific. Esfr high output, high volume systems are located in ceiling spaces as with conventional fire sprinkler systems. Esfr technology a relatively new sprinkler technology is changing that. Esfr type sprinklers definition advantages disadvantages comparison to conventional. Early suppression, fast response upright sprinklers. The design and installation of esfr sprinkler systems shall comply with the applicable standards of nfpa, nfpa231, nfpa 231c, fm loss prevention data 22, 821s, 729s and the authority having jurisdiction. Can an esfr sprinkler system keep you from getting soaked. Prior to the design, layout, andor installation of any sprinkler system, please refer to vikings technical documentation and always consult with the ahj. Description viking early suppression fast response esfr pendent sprinkler vk503 is a fast.
Jun 14, 2016 since the late 1980s, early suppression, fast response esfr sprinklers have been viewed as one of the greatest innovations in fire protection since henry parmelee first introduced the automatic sprinkler in 1874. Preprimed single interlock preaction cold storage system. Technical specification for model jl14 and jl17 esfr sprinklers created date. Fire sprinklers are extensively used worldwide, with over 40 million sprinkler heads fitted each year. Around 1990 early suppression fast response esfr sprinkler systems began being installed in warehouses and distribution centers. Viking early suppression fast response esfr pendent sprinkler vk500 is a fast response fusible element type sprinkler designed for early fire suppression. Volume conventional sprinkler heads output rate 25 to 30 gallons per minute. This sprinkler is designed to respond quickly to growing fires with a high volume of water discharge to suppress rather than control fires. There is a good reason why only esfr sprinklers are referenced in the code. Since there have been no rdd data for rack storage with heights greater than. Model esfr17 early suppression, fast response upright sprinklers 16. Early suppression, fast response pendent sprinklers.
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