Sprinklers » Standard Spray Sprinklers » Quick Response - Standard Spray Sprinkler
A-24 Recessed Sprinkler
Automatic Sprinklers GL Series Recessed Pendent Recessed Horizontal Sidewall
Description and Operation
The Globe Quick Response GL Series Sprinkler is a low profile yet durable design which utilizes a 3mm frangible glass ampule as the thermosensitive element. This provides sprinkler operation approximately six times faster than ordinary sprinklers. While the Quick Response Sprinkler provides an aesthetically pleasing appearance, it can be installed wherever standard spray sprinklers are specified but offers the additional feature of greatly increased safety to life. Quick Response Sprinklers should be used advisedly and under the direction of approving authorities having jurisdiction.
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 depending upon the deflector style used.
The sprinkler and escutcheon are not factory assembled. Assembly is done in the field.
Technical Data
- Temperature Ratings
- 135°F (57°C)
155°F (68°C)
175°F(79°C)
200°F (93°C)
286°F (141°C) - Water Working Pressure Rating -
175 psi (12 Bars) - Factory tested hydrostatically to 500 psi (34 Bars)
- Maximum low temperature glass bulb rating is
-67°F (-55°C)
- Frame - bronze
- Deflector - brass
- Screw - brass
- Bulb seat - copper
- Spring - nickel alloy
- Seal - teflon
- Bulb - glass with alcohol based solution, 3mm size
- Escutcheon Assembly - steel
Sprinkler Temperature Rating/Classification and Color Coding
| Classification | Available Sprinkler Temperatures | Bulb Color | N.F.P.A. Maximum Ceiling Temperature |
||
|---|---|---|---|---|---|
| Ordinary | 135°F/155°F | 57°C/68°C | Orange/Red | 100°F | 38°C |
| Intermediate | 175°F/200°F | 79°C/93°C | Yellow/Green | 150°F | 66°C |
| High | 286°F | 141°C | Blue | 225°F | 107°C |
Specifications
| Nominal 'K' Factor | Thread Size | Length1 | Finishes |
|---|---|---|---|
| 2.8 (39 metric) | 1/2" NPT | 2 1/4" (5.7 cm) | Factory Bronze Satin Chrome2 Bright Chrome White Polyester3 Black Polyester3 Lead Coated2 |
| 4.2 (59 metric) | 1/2" NPT | 2 1/4" (5.7 cm) | |
| 5.6 (80 metric) | 1/2" NPT | 2 1/4" (5.7 cm) | |
| 7.8 (111 metric) | 1/2" NPT | 2 1/4" (5.7 cm) | |
| 8.1 (116 metric) | 3/4" NPT | 2 7/16" (6.2 cm) |
Note:
- Metric conversions are approximate.
- 1Horizontal Sidwall is 2 9/16".
- 2Finishes available on special order.
- 3C-UL listed corrosion resistant polyester must be specified on order.
Approvals
| Style | Sin Model | K Factor | 135°F 57°C | 155°F 68°C | 175°F 79°C | 200°F 93°C | **286°F 141°C | †cULus | ††FM | LPC | CE | NYC - DOB MEA 101-92-E |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pendent Recessed |
GL2801 | 2.8 | • | • | • | • | • | • | – | – | – | • |
| GL4201 | 4.2 | • | • | • | • | • | • | – | – | – | • | |
| GL5601 | 5.6 | • | • | • | • | • | • | • | • | • | • | |
| GL8101 | 7.8* | • | • | • | • | • | • | • | – | – | • | |
| GL8106 | 8.1 | • | • | • | • | • | • | •$ | • | • | • | |
| Horizontal Sidewall Recessed § |
GL2826 | 2.8 | • | • | • | • | • | • | – | – | – | • |
| GL4226 | 4.2 | • | • | • | • | • | • | – | – | – | • | |
| GL5626 | 5.6 | • | • | • | • | • | • | – | – | – | • | |
| GL8127 | 8.1 | • | • | • | • | • | • | – | – | – | – |
- § Horizontal Sidewall cULus listed for deflector 4" to 12" below the ceiling.
- † 5.6K orifice, 7.8K orifice and 8.1K orifice listed for all hazards.
- * 7.8K X 1/2" NPT.
- **286°F cULus listed only.
- † † 1/2" Recessed Escutcheons are required for FM appoved sprinklers.
$ Brass Finish Only
Cross Sections
Ordering Information
When ordering please specify the following.
- Quantity
- Model Number
- Style
- Orifice
- Thread Sizes
- Temperature
- Finishes desired
- Quantity - Recessed Wrenches - P/N 325391 (1/2");P/N 325401, Rev. F (L.O.)
- Quantity - Protective Caps - P/N 327109-CAP (Friction Fit Recessed)
Product Related Documents
Related Products
Globe Product Warranty
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: GL2801 Last Revised: June 2009 Revision: 8