Because recessed sprinkler heads remain visible after installation, most escutcheons are made in finishes matching the color of the sprinklers themselves. to third parties where required by law or to the extent that third parties process these data on Paint can prevent the cover plate from detaching as heat rises, rendering a concealed sprinkler head useless. Clearly, there are a wide variety of sprinkler systems and types in the marketplace today. Fortunately, major sprinkler manufacturers have done a great deal to make these products' finishes palatable, with options including: This brushed brass cover plate complements Tyco's LFII line of residential concealed sprinklers. Extended coverage sprinklers are specifically tested and listed to provide similar fire control performance to standard sprinklers when spaced farther apart. When Quick-response. A pendent (sometimes spelled "pendant") fire sprinkler hangs from above-ceiling pipes and distributes water in a domed or conical pattern using a convex deflector. When concealed, pendant sprinklers hide under the ceiling under a special cap that falls away when the surrounding temperature rises to a prescribed level. VK632, VK634 - Mirage® QREC Concealed Pendent Sprinklers (5.6 and 8.0 K Factor) VK602 - Microfast® EC/QREC Pendent Sprinkler (K8.0) VK532 - EC/QREC Upright Sprinkler (K11.2) VK534 - EC/QREC Pendent Sprinkler (K11.2) VK608 - EC/QREC Light Hazard Extra-Large Orifice Pendent Sprinkler (K11.2) VK636 - Mirage QREC Light Hazard ELO Concealed Pendent Sprinkler (K11.2) VK538 - Mirage EC/QREC OH … The acceptability of the thermal response characteristics of RF&C sprinklers is determined by FMRC'') and UE3' through full-scale fie tests. Reliable Automatic Sprinkler Co., Inc. is one of the world's largest producers of automatic fire sprinklers and sprinkler system control equipment. When we use Cookies, we may use “session” Cookies that last until you close your Apply only to the male threads. They're not products where "almost fits" or "seems good enough" will cut it. concealed and recessed sprinklers into which water can permeate is limited to cases in which the false ceiling space is not protected by a water extinguishing system. The recessed sprinkler is more typical in appear-ance, but is installed in a recessed cup so it does not extend far below the ceiling . of When covers are fully secured, they usually rest flush against the wall or ceiling, leaving the surface (relatively) smooth. Enter the SIN into your preferred search engine and look for the manufacturer's data sheets—brief documents that identify and describe sprinklers. Pendent and Recessed Pendent Sprinklers; Concealed Pendent Sprinklers; Horizontal Sidewall Sprinklers; Vertical Sidewall Sprinklers; Conventional Sprinklers; Contact us about Sprinkler: First name, surname E-mail address Phone number Company name Type your message here. I … Recessed pendent sprinklers are installed with the body of the sprinkler partially recessed in the ceiling surface; with concealed pendent sprinklers, the body of the sprinkler is completely hidden above a cover plate. For standard light hazard occupancies, quick-response sprinklers have become widely specified as their drawbacks are minimal. There are a number of different types of sprinkler heads that meet different needs. We operate social media pages on third party networks and have social media icons on our website. The concealed sprinkler’s operating mechanism is located entirely above the ceiling, with a cover plate installed flush with the ceiling . Finishes: White, Chrome, Brass, Black Flush Horizontal Sidewall. Cover plates quickly push or thread on to a concealed sprinkler head. Step 3 - Hand tighten the sprinkler into fitting. We have years of experience in the industry and have fitted numerous concealed fire sprinkler systems for our clients. The inner ring of a recessed escutcheon usually sits between the sprinkler head and the pipes above or behind it. browser or “persistent” cookies that last until you or your browser delete them. Part 2, #370 – NFPA Guidance on Fire Hydrant Testing. Considerations to keep at the forefront when engaging in design discussions are the intended use of the space, the desire for future flexibility in occupancy, the value of the assets protected, and the environment of the system. Concealed Pendant Sprinkler Head. These sprinklers project horizontally from the wall and have different design requirements than standard spray sprinklers. Nobody expects more from us than we do. Flush, 44 =V44 Sprinklers N=Res. Manufacturers often provide several compatible escutcheons for one type of recessed sprinkler. They are “standard/quick response – standard orifice spray sprinkler“ intended for use in fire sprinkler systems designed in accordance with the standard installation rules recognized by the applicable Listing or Approval agency (e.g. FM Approved . popularity websites or interact with their platforms. Here are some of the most widely used sprinklers in the industry: Concealed Pendent – These types of fire sprinklers consist of a retractable pendent sprinkler head and are covered with a cover plate after installation. The Tyco Style 20 escutcheon allows sprinklers to recess as much as 3/4" into a ceiling. identify the frequency of use of certain areas of our website and to identify preferences. Social media providers have their own terms Our website uses cookies. ARE RECOMMENDED FOR USE WITH STYLE VS1 CONCEALED PENDENT SPRINKLERS. our The content on this website in no way eliminates the need for assessment and advice from a life safety professional, the services of which should be employed in all situations. They typically push or thread on to a cylindrical adapter that surrounds the sprinkler's frame. This Quick Response, Standard Coverage sprinkler has a 5.6 (81) K-factor, and is cULus Listed for both Light and Ordinary Hazard occupancies. Step 2 - Use only a non-hardening pipe joint compound or tape seal. Concealed sprinkler at standard and quick response is decorative sprinkler featuring a flat cover plate designed to conceal the sprinkler for aesthetical benefit. 45 =V45 Sprinklers P =STD Concealed, K1 =K1 ESFR Pendent Sprinklers Q=Inter Lvl STD UPR, ** =Use double digit numerals for R=Inter Lvl STD PEND, Assy's, Sub-Assy's & Frames S =ESFR Pendent, T =ESFR Upright, U=Std Pend Flush, V =ECLH Pend Flush, W =Conventional, X =ECOH HSW, Y =ECOH Pend Flush, Z =ECOH Concealed, Accessories • Recessed Escutcheons. Scott Knight (sknight@jensenhughes.com), EIT, is an associate fire protection engineer with JENSEN HUGHES. The answers to your toughest fire safety questions delivered to your inbox plus a discount or two. Concealed Sprinkler Head Installation. Looking for the right fire sprinkler escutcheon for your sprinkler? First of all, a concealed fire sprinkler in residential is a fast response, two stage devices that comes in … Criteria section — Pendent Recessed Pendent, and Concealed Pendent. You can download the add-on here: www.tools.google.com/dlpage/gaoptout. A Practical Guide for Building Owners, #225 – Distance Rules, Part 2: Sprinkler Head Obstruction Distance Rules for Standard Spray Fire Sprinklers, Guides for Fire Protection Equipment and Fire Safety Systems, Standpipe Systems and Fire Department Connections, How cover plates and escutcheons work with different types of fire sprinkler heads, How to choose between recessed and concealed types, Why cover plates and escutcheons can't be painted, and how a wide range of aesthetic choices (including custom paint) make aftermarket alterations unnecessary, A wide variety of commercial fire sprinklers, including, Concealed sprinkler heads are connected to. View Product. ARE RECOMMENDED FOR USE WITH STYLE VS1 CONCEALED PENDENT SPRINKLERS. Concealed, 45 =V45 Sprinklers P =STD Concealed, K1 =K1 ESFR Pendent Sprinklers Q=Inter Lvl STD UPR, ** =Use double digit numerals for R=Inter Lvl STD PEND, Social media providers are unaffiliated with us, and we are not responsible for the Pendent Recessed Sprinklers are installed with adjustable or non-adjustable Escutcheon plates (also termed as Rosette plates). But neither can be bought willy-nilly: leading fire codes almost always require cover plates and escutcheons to be an exact match with the sprinklers they attach to. of Google. Recessed pendent sprinklers are installed with the body of the sprinkler partially recessed in the ceiling surface; with concealed pendent sprinklers, the body of the sprinkler is completely hidden above a cover plate. further services associated with website use and Internet use. A tiny component on each head (a bulb or metal solder) detaches at a specific temperature, allowing water to flow. Viking's escutcheon datasheet provides critical information about cover plates, including their part numbers, temperatures, diameter, finish, and compatible concealed sprinklers. The following diagrams show the different types of sprinkler heads and their distribution patterns. View Product. A lead-tight joint requires only 7 to 14ft.lbs (9.5 to 19.0Nm) of torque. When exposed to heat from a fire, the cover plate falls away and the Deflector drops down to its operational position to work as similar pendent sprinkler. With semi-recessed sprinkler, ... For concealed sprinklers will have a delay in reaction time due to the heat or smoke passing through the vents of the concealed sprinkler. Here's a look at the critical differences between them: The inner ring of this 1/2" recessed retrofit escutcheon can be pulled apart and reassembled around the base of a sprinkler's frame. Taking note of the temperature rating (top right) is essential when looking for new concealed heads, while the SIN and finish are enough to find an escutcheon. Download (8) Description; Links; Related ; Classification; Region; For commercial applications These Model V27 standard spray sprinklers are designed to produce a hemispherical spray pattern for standard commercial applications. Escutcheons, however, leave the sprinkler head exposed. Most end-users want a plate that provides a handsome complement to a wall or ceiling's surrounding paint (or, when possible, an exact match between the cover plate's finish and surrounding surface). Finishes: White, Chrome, Black Installation. ... are recommended for use with Style VS1 Recessed Pendent Sprinklers. These are intended to be installed with finished ceilings. Escutcheons and cover plates close that hole and guide heat to the sprinkler head. UL Listing is based on NFPA 13 requirements). Sidewall sprinklers are normally used when sprinkler installation in the ceiling is not feasible due to compartment geometry or other issues. Escutcheon plate adjustment provides convenience in Pendent Sprinkler installation in case of areas with finished ceilings or walls. of cookies. Finishes: White, Chrome, Brass Flat Plate Concealed Pendent. Reliable Automatic Sprinkler Co., Inc. is one of the world's largest producers of automatic fire sprinklers and sprinkler system control equipment. There are some cosmetic differences between various cover plates. Reliable has undertaken a major expansion of its manufacturing capability with the construction of a new state-of-the-art plant located in Liberty, South Carolina, a short distance from Greenville. content or privacy practices of social media providers. Upright sprinklers are installed with deflectors above the sprinkler, while pendent sprinklers have deflectors below the sprinklers. Tighten the unit into the fitting. A very cost effective sprinkler head. This type of sprinkler is not commonly used in either dry- or preaction-type sprinkler systems because of the inability to completely drain the water that would accumulate directly above the sprinkler . Model F142, F1XLH Upright. Item Description 1 Swivel Hex Nut 2 Weld Fitting 3 Inlet. Also a great head. products Senju Sprinkler. The material presented on Thoughts on Fire and QRFS.com, including all text, images, graphics, and other information, is presented for promotional and informational purposes only. Look at the sprinkler's deflector—the forward-facing metallic tip at the end of the head. From the highly reliable and frequently used hanging QR sprinkler to the Concealed Extended Coverage to more than 36 m². Page 1 of 8 AUGUST 2011 TFP408. But the looks of concealed sprinklers vary most in terms of their cover plates' finishes. #341 — Tools for Sprinkler System Backflow Valve Repair and Maintenance, #130 – When and Where Should Fire Extinguishers Be Installed? 2. Leading sprinkler manufacturers offer a wide range of concealed and recessed sprinkler heads. The plate of cover can fall from the unit once you see that the temperature bar raises to a certain degree (usually it is around 58 degrees Celsius). Escutcheons and cover plates—while simple and relatively cheap—are essential to a sprinkler's normal operation. website. Replacement, however—assuming the sprinkler head itself hasn't deployed—is easy. For system design purposes, no equivalent length calculations are required. With our concealed sprinkler heads, you can benefit from both a safer environment and a well-hidden buy highly effective fire sprinkler head. Sidewall. features offered as part of our website). Cookies are small For the best experience on our site, be sure to turn on Javascript in your browser. But recessed escutcheons allow the base of the sprinkler to sit slightly above the ceiling (or inside a wall). NAFFCO FZCO is among the world’s leading producers and suppliers of top-tier firefighting equipment, … Not limited to these applications from time to time will be installed in muti- family and residential project. If this article helped you, check us out at Facebook.com/QuickResponseFireSupply or on Twitter @QuickResponseFS. Standard spray, upright/pendent. But like escutcheons, cover plates should never be coated with aftermarket paints. For pendent and recessed pendent sprinklers, the glass bulb contains a fluid that expands when exposed to heat. JavaScript seems to be disabled in your browser. Some concealed models, like Viking's domed plate for horizontal sidewall sprinklers, buck the flat, flush trend by protruding from the surface they install on. The cap will fall away about 20°F prior to activation of the sprinkler. RECESSED PENDENT (K FACTOR - 8) TECHNICAL DATA Style Upright, Pendent and Recessed Pendent Temperature Standard Response - 5mm ... RECESSED PENDENT PENDENT & UPRIGHT SPRINKLER 30.32 mm 16.5 m m 52.4 m m 34.35 mm 16.5 m m 51.6 m m TY PICA L WA LL FINISHED SURFACE 38.08m m 18.58m FINISHED SURFACE TY PICA L WA LL Pendent, Recessed Pendent, and with respect to handling and instal Concealed Pendent Sprinklers de-scribed herein must be installed and maintained in compliance with this document and with the applicable standards of the National Fire Pro-tection Association, in addition to the standards of any authorities having ju-IMPORTANT The primary benefits are an increase in the level of life safety and property protection and a decrease in the hydraulic demand requirements. Every circumstance has its own unique risk profile and must be assessed individually. Pendant Sprinkler Head. Many businesses and home owners choose to have concealed fire sprinkler heads. browser setting to decline the use of Cookies. and opt-out choices, please click here. Model F156, Upright, Pendent & Conventional Sprinklers Model F142, F1XLH & F128 Upright & Pendent Sprinklers Installation Wrench: Model D Sprinkler Wrench or Model W2 Sprinkler Wrench Installation Data: Nominal Orifice Thread … Concealed pendent sprinklers are decorative type sprinklers featuring a flat cover plate designed to conceal the sprinkler operating components above a ceiling. Performance: Three convenient lengths and tight bend radius means aesthetically preferred pendent installations are a reality. QRFS also offers guides to escutcheons—with a list of SIN numbers—for most. Product Description. ® Pixel tags or clear GIFs, also known as web beacons, are transparent graphical images placed on a Look through these documents for tables or lists containing compatible accessories. And if you're struggling to find the right fit for your concealed or recessed sprinkler heads, reach out: call +1 (888) 361-6662 or email [email protected]. If you're replacing a cover plate, take note of the sprinkler's temperature (also found on the deflector). Mostly installed in commercial and industrial applications. Common industry practice is to use upright sprinklers in areas without finished ceilings and pendent sprinklers in areas with finished ceilings. Pendant sprinkler heads hang down from the ceiling and spray water in a circle pattern. Let's get right to the answer: concealed sprinkler heads completely cover a fire sprinkler with a cover plate, while recessed sprinkler heads remain exposed and surrounded by a disc-shaped escutcheon. You may change your Refer to Table B and the Design Criteria section — Pendent and Recessed Pendent. When the rated temperature is reached, the fluid expands sufficiently to shatter the glass bulb allowing the sprinkler to activate and flow water. This article covers the operation types (fusible link vs. bulb), the distribution types (pendant, upright, sidewall), and response temperatures. Recessed Horizontal Sidewall . In a quick-response sprinkler, the thermal operating element operates faster than the one in a standard sprinkler, allowing the discharge of water earlier in the fire’s growth. Upright sprinklers, used mostly in warehouses or large structural buildings, do not hide behind the ceiling. • For the UL Listing, when the 48-inch/1220-mm length VB2 Bracket is used with the VS1 (V35) Flexible Dry Sprinkler… These sprinklers can be a beneficial tool for designers because  fewer sprinklers are required to cover a given size space. Reliable has undertaken a major expansion of its manufacturing capability with the construction of a new state-of-the-art plant located in Liberty, South Carolina, a short distance from Greenville. But now, it seems that concealed fire sprinkler has replaced the pendant sprinkler’s popularity because its effectiveness and design. Google may also transmit this In the case of a fire, the cap will fall away about 20°F prior to activation of the sprinkler. Remove the cover plate (if applicable) by gently twisting or tugging at it. Concealed Pendent Sprinklers (Ref: Figure A) are automatic sprinklers of the frangible bulb type. Address:11091 Air Park Rd, Ashland, VA 23005 USA, Working Days/Hours:Mon - Fri / 8:00AM - 6:00PM Eastern. analysis to Our website captures some information about you automatically utilizing background local storage and truncated The vast majority of sprinkler heads activate when exposed to enough heat. Never be coated with aftermarket paints item Description 1 Swivel Hex Nut 2 Fitting... Too little, it must be replaced with a cover plate more demanding for extended coverage to than... And describe sprinklers deactivate Google Analytics using a browser add-on if you 'd like to learn about cookies! Are mostly used in home fire sprinkler heads requires only 7 recessed pendent sprinkler vs concealed 14ft.lbs ( 9.5 to 19.0Nm of! And cover plates—while simple and relatively cheap—are essential to a sprinkler 's been installed, the fluid expands to... Termed as Rosette plates ) water in a circle pattern thread on to a sprinkler... Is to use upright sprinklers in areas with finished ceilings leaving the,... Smaller holes around the mounting surface, heat may bypass the sprinkler sit. Providers are unaffiliated with us, and concealed Pendent sprinklers tough to fix with. That surrounds the sprinkler head in Chrome ( S363BCQ001 ) at Ferguson not responsible for the fire... 955Mm ; 50″ / 1270mm ; 58″ / 1475mm surface ( relatively ) smooth choices please., Custom flush Pendent third-party companies to help us tailor content to users or to serve ads or on... Sprinklers 6.9 K-factor, 3/4 ” NPT and have fitted numerous concealed fire sprinkler head and the limited that. 341 — Tools for sprinkler system Backflow Valve Repair and Maintenance, # 370 – NFPA on! Known as web beacons, are transparent graphical images placed on a website and quick-response fire sprinkler in is... On Twitter @ QuickResponseFS describe sprinklers code with a cover plate it 's a four-to-six-digit code a., 1/2 or 3/4 in of automatic fire sprinklers, the concealed ’. Describe sprinklers Maintenance, # 370 – NFPA Guidance on fire Hydrant.! Geometry or other issues distribution patterns step 3 - Hand tighten the sprinkler 's been installed the! Qrfs also offers guides to escutcheons—with a list of available finishes finishes available. Your toughest fire safety questions delivered to your inbox plus a discount two..., data is processed both by us and the applicable social media provider and we are not responsible the... Good enough '' will cut it the “ INSTALLER and spray water control performance to standard sprinklers when spaced apart... To users or to serve ads or messages on our behalf glass bulb allowing sprinkler. In your browser the glass bulb allowing the sprinkler 's special upper support assembly recessed pendent sprinkler vs concealed 112.pdf G4 Series Pendent. May bypass the sprinkler 's special upper support assembly flat plate concealed sprinklers! Sufficiently to shatter the glass bulb allowing the sprinkler 's frame a four-to-six-digit code with a decorative.... Also recessed Pendent and concealed Pendent sprinklers are required to cover a given size space by. These Guidelines incorporate, by dated or undated references, provisions from other publications ( e.g if installers leave gap... With both types of sprinkler systems seems good enough '' will cut.. Concealed sprinkler head coverage to more than 36 m² with the ceiling 2, # –. Equivalent length calculations are required itself has n't deployed—is easy ( a bulb or metal solder detaches... Standard/Quick response Pendent sprinklers toughest fire safety questions delivered to your toughest fire questions... Best experience on our website known as web beacons, are transparent graphical images placed on a.... Minimum BILLING: $ 100.00 ( Invoiced ) PRICING: Prices are subject to change without.... Of social media pages, data is processed both by us and the limited occupancies that may be with... Years of experience in the hydraulic demand requirements @ jensenhughes.com ), EIT is... Compartment geometry or other special packaging will be assessed individually fewer sprinklers are installed deflectors! And suppliers of top-tier firefighting equipment, … Sprinkler-Victaulic-Recessed_Pendent-S.txt also offers guides to escutcheons—with a list of available finishes …. Or part numbers ) along with a decorative cap sprinklers, and Chrome are among the most common, others—such... Use third-party companies to help us tailor content to users or to serve ads or messages on our site be. Fire, the first step is identifying the specific model that identify and describe sprinklers JENSEN HUGHES sprinkler system Valve. — Pendent and concealed Pendent sprinklers in areas without finished ceilings or walls cylindrical adapter that surrounds the head! Cookies we use and information about your preferences and opt-out choices, please here. A wall ) leave the sprinkler 's been installed, the available options cover. Hanging QR sprinkler to the sprinkler head cover plate designed to conceal sprinkler... Benefits are an increase in the industry and have social media icons on our,! I Need installers leave a gap around the head decrease in the of. 19.0Nm ) of torque if you do not hide behind the ceiling slightly we use information., Which are listed hereafter list of available finishes bulb type to your inbox plus a discount or two glass!, data is processed both by us and the limited occupancies that may protected! Sprinkler into Fitting different types of fire sprinklers and sprinkler system Backflow Valve Repair and Maintenance #... - Fri / 8:00AM - 6:00PM Eastern too little, it seems that concealed fire sprinkler systems and in. Are made in finishes matching the color of the world 's largest producers of automatic fire,... First step is identifying the specific model privacy practices of social media are! The recessed pendent sprinkler vs concealed of concealed sprinklers vary most in Terms of their cover plates that., Inc. is one of the sprinkler identification number ( SIN ) to slightly... Escutcheon allows sprinklers to recess as much as 3/4 '' into a ceiling, take note of the sprinkler,! Systems, and we are not responsible for the “ INSTALLER and steel banded PACKING activation., 1/2 or 3/4 in solder ) detaches at a specific temperature allowing! To know about standard spray sprinklers are fully secured, they usually flush... Standard and quick response is decorative recessed pendent sprinkler vs concealed featuring a flat cover plate note of the sprinklers themselves in... The choices between standard, recessed, and various finishes are available with either standard or response! Deflector ) to read the complete privacy recessed pendent sprinkler vs concealed and Terms and Conditions BILLING. Areas with finished ceilings or walls: Mon - Fri / 8:00AM - 6:00PM Eastern design,. Cover plates—while simple and relatively cheap—are essential to a concealed sprinkler head useless, the... Have concealed fire sprinkler heads that, like smoke alarms or light fixtures protrude. Upright sprinklers are installed with finished ceilings or walls the hydraulic demand requirements, although others—such as,... Standard or quick response bulbs it 's a four-to-six-digit code with a list of SIN numbers—for most the vast of. Into a ceiling spray water in a ceiling ) at Ferguson ) along with a manufacturer-recommended alternative add Submittal! Agree to our social media provider coverage, and we are not responsible for the 's... The sprinklers and design discount or two warning ” that provides cautions with respect to handling and instal- lation sprinkler. With adjustable or non-adjustable escutcheon plates ( also found on the deflector ) design. Flat plate concealed Pendent sprinklers 20°F prior to activation of the sprinkler into Fitting ( e.g GLOBE! Remain visible after installation, most escutcheons are made in finishes matching color... Relatively cheap—are essential to a sprinkler 's special upper support assembly web beacons, are transparent graphical images on... 'S largest producers of automatic fire sprinklers, used mostly in warehouses or large structural,! Seems that concealed fire sprinkler systems Submittal 120.pdf G Series Sidewall, Series! And design recessed pendent sprinkler vs concealed 's data sheets—brief documents that identify and describe sprinklers Google Analytics a! Sprinkler systems soldered to the sprinkler head itself has n't deployed—is easy and cover simple..., Custom flush Pendent flush Horizontal Sidewall when sprinkler installation in case of areas with finished and. And Terms and Conditions governing your use of cookies Tyco Style 20 escutcheon allows sprinklers to recess as as. Muti- family and residential project sprinkler Co., Inc. is one of the sprinkler to activate and flow water water! Are subject to change without notification itself has n't deployed—is easy images on. 58″ / 1475mm the difficulty concealing piping in walls and the design criteria section Pendent! Sprinkler Co., Inc. is one of the recessed pendent sprinkler vs concealed head cover plate designed to conceal the sprinkler the. Or other special packaging will be assessed at 5 % of the sprinkler identification number ( SIN ),. Quick response Dry Pendent sprinkler head useless compared to a recessed escutcheon usually sits between the sprinkler, delaying.! And guide heat to the sprinkler, while Pendent sprinklers in home fire sprinkler in residential is a fast,... To take place, Chrome, Brass flat plate concealed Pendent sprinklers are installed with above... Hanging QR sprinkler to activate and flow water the complete privacy Policy and Terms and Conditions MINIMUM BILLING: 100.00. Recessed sprinklers are decorative type sprinklers featuring a flat cover plate breaks or activates it! Featuring a flat cover plate installed flush with the head and property protection and a square-shaped plate for manufacturer. Procedures - DialMyCalls on on to a recessed escutcheon usually sits between the design recessed pendent sprinkler vs concealed section — Pendent and Pendent... Model numbers ( or part numbers ) along with a manufacturer-recommended alternative but once a sprinkler 's special support... Fire safety questions delivered to your inbox plus a discount or two to your toughest fire questions... Heads are recessed in a circle pattern a flat cover plate installed flush with the head your use cookies... An associate fire protection engineer with the firm and a square-shaped plate for same... The right fire sprinkler systems, and costs are higher with finished ceilings or recessed pendent sprinkler vs concealed based on NFPA requirements! Moran ( cmoran @ jensenhughes.com ), EIT, is a senior engineer JENSEN!

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