Sprinklers » Extended Coverage Light Hazard Sprinklers » Extended Coverage Light Hazard Horizontal Sidewall
A-46 Extended Coverage Horizontal Sidewall Sprinker - GL8128 & GL8129
Extended Coverage Automatic Sprinklers Model GL8128, GL8129 Horizontal Sidewall
Description and Operation
The Globe Quick Response Models GL8128 and GL8129 Extended Coverage Horizontal Sidewall Sprinklers are 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 this Quick Response Sprinkler provides an aesthetically pleasing appearance, it can be installed wherever standard extended coverage horizontal 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, in accordance with their listings and in accordance with NFPA 13.
The heart of Globe's Model 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.
Technical Data
- Temperature Ratings -
135°F (57°C)
155°F (68°C)
175°F (79°C)
200°F (93°C) - Water Working Pressure Rating -
175 psi (1207 kPa) - Factory tested hydrostatically to 500 psi (3448 kPa)
- 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 |
Specifications
| Nominal 'K' Factor | Thread Size | Length | Finishes |
|---|---|---|---|
| 8.1 (116 metric) | 3/4" NPT | 3" (7.6.cm) | Factory Bronze 1Satin Chrome Bright Chrome 2White Polyester 2Black Polyester 1Lead Coated |
NOTE:
- Metric conversions are approximate.
- 1Other finishes available on special order.
- 2Available as cULus listed corrosion resistant when 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) | cULus | NYC - DOB MEA 101-92-E |
|---|---|---|---|---|---|---|---|---|
| Sidewall | GL8128 | 8.1 | • | • | • | • | • | • |
| GL8129 | 8.1 | • | • | • | • | • | • |
U.L. Listing Design - Use Requirements For Light Hazards
| Model # | Style | Temp. | Ceiling to Deflector Distance | Width of Coverage | Length of Coverage | Min. Pressure P.S.I. | FLOW IN G.P.M. |
|---|---|---|---|---|---|---|---|
| GL8128 | Standard & Recessed |
135°F / 57°C 155°F / 68°C 175°F / 79°C 200°F / 93°C |
4" TO 6" | 16' | 16' | 10.3 | 26 |
| 18' | 12.8 | 29 | |||||
| GL8129 | Standard & Recessed |
135°F / 57°C 155°F / 68°C 175°F / 79°C |
6" TO 12" | 16' | 10.3 | 26 | |
| 18' | 12.8 | 29 | |||||
| GL8128 | Standard & Recessed |
135°F / 57°C | 4" TO 6" | 20' | 16'.6 | 33 | |
| GL8129 | 6" TO 12" | ||||||
| GL8128 | Standard | 175°F / 79°C | 4" TO 6" | ||||
| GL8129 | 6" TO 12" | ||||||
| GL8128 | Standard & Recessed |
135°F / 57°C | 4" TO 6" | *22' | 20.8 | 37 | |
| GL8129 | 6" TO 12" | *24' | 26.8 | 42 |
*Listed with recessed cup with 1/2" adjustment, minimum 6' sprinkler spacing.
Cross Sections
Click image above for a detailed view of this product.
Ordering Information
When ordering please specify the following.
- Quantity
- Model Number
- Style
- Orifice
- Temperature
- Finishes desired
- Quantity - Wrenches - P/N 312366
- Quantity - Recessed Wrenches - P/N 325401, Rev. D
- 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: GL8128 Last Revised: October 2003 Revision: 5