A-71 Adjustable Concealed (Dome) Pendent Sprinkler
GL Series Adjustable Concealed Pendent
The Globe GL Series Adjustable Concealed Pendent Sprinkler offers the ultimate in low profile, aesthetically pleasing appearance. All that is seen at the ceiling is a 3 5/16" diameter ceiling plate color finished to match the specifier's exact requirements. The Sprinkler is available with 1/2" of adjustment and a deeper profile cover plate assembly. The GL Series Adjustable Concealed Sprinkler may be virtually invisible as it does not interrupt the "smooth flow" of the ceiling. Globe's Adjustable Concealed Sprinkler utilizes its frangible glass ampule type sprinkler which is located above the ceiling and concealed from view by the ceiling plate. The plate is soldered to the sprinkler special upper support assembly in three places. Upon the application of sufficient heat, the plate falls to the floor exposing the pendent spray sprinkler. At the ampule's rated temperature, the sprinkler opens discharging water onto the floor in its required and approved distribution pattern.
The heart of Globe's GL Series sprinkler proven actuating assembly is a hermetically sealed frangible glass ampule that contains a precisely measured amount of fluid. When heat is absorbed, the liquid within the bulb expands increasing the internal pressure. At the prescribed temperature the internal pressure within the ampule exceeds the strength of the glass causing the glass to shatter. This results in water discharge which is distributed in an approved pattern.
- Temperature Ratings -
135°F (57°C) Sprinkler, 135°F (57°C) Cover Plate
155°F (68°C) Sprinkler, 135°F (57°C) Cover Plate
155°F (68°C) Sprinkler, 155°F (68°C) Cover Plate
175°F (79°C) Sprinkler, 155°F (68°C) Cover Plate
200°F (93°C) Sprinkler, 155°F (68°C) Cover Plate
- Water Working Pressure Rating - 175 psi (12 Bars)
- Factory tested hydrostatically to 500 psi (34 Bars)
- Maximum low temperature glass bulb rating is
- Frame - bronze
- Deflector - brass
- Screw - brass
- Bulb seat - copper
- Spring - nickel alloy
- Seal - teflon
- Bulb - glass with glycerin based solution, 5mm size
- Cover Plate - brass
- Upper Escutcheon Assembly - steel
Sprinkler Temperature Rating/Classification and Color Coding
|Classification||Available Sprinkler Temperatures||Bulb Color||N.F.P.A. Maximum Ceiling Temperature|
|Nominal 'K' |
|2.8||(39 metric)||1/2" NPT||2 1/2"
Other Painted Finishes1
|4.2||(59 metric)||1/2" NPT|
|8.1||(116 metric)||3/4" NPT|
- Metric conversions are approximate.
- 1Finishes available on special order. Painted plates other than white required customer to finish paint.
:*Listed For All Hazards
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When ordering please specify the following.
- Model Number
- Thread Size
- Finishes desired
- Quantity - Concealed Wrenches - P/N 325391
- Quantity - Protective Caps - P/N 327119
Globe agrees to repair or replace any of its own manufactured products found to be defective in material or workmanship for a period of one year from date of shipment.
For specific details of our warranty please refer to Price List Terms and Conditions of Sale (Our Price List).
Bulletin: GL2856 Last Revised: October 2012 Revision: 4