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Sprinklers » Extended Coverage Light Hazard Sprinklers » Extended Coverage Light Hazard Horizontal Sidewall

A-77 Extended Coverage Light Hazard Horizontal Sidewall Sprinkler - GL8128, GL8129 & GL8174

Extended Coverage Light Hazard Model GL8128, GL8129, GL8174 Horizontal Sidewall

Description and Operation

The Globe Models GL8128, GL8129 and GL8174 Extended Coverage Horizontal Sidewall Sprinklers are a low profile yet durable design which utilizes a 3mm frangible glass ampule as the thermosensitive element. While the sprinkler provides an aesthetically pleasing appearance, it serves to protect various area coverages and should be installed in accordance with NFPA 13. This sprinkler series is available in various temperature ratings and several finishes to meet many varying design requirements.

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.

Technical Data

  • Temperature Ratings - 135°F (57°C), 155°F (68°C),
    200°F (93°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

ClassificationAvailable Sprinkler TemperaturesBulb ColorN.F.P.A. Maximum Ceiling Temperature
Ordinary 135°F/155°F 57°C/68°C Orange/Red 100°F 38°C
Intermediate 200°F 93°C Green 150°F 66°C

Specifications

Nominal 'K'
Factor		Thread SizeLengthFinishes
8.1 (116 metric) 3/4" NPT 3" (7.6 cm) Factory Bronze
1Satin Chrome
Bright Chrome
White Polyester2
Black Polyester2
1Lead Coated
Note:
  • Metric conversions are approximate.
  • 1Finishes available on special order.
  • 2Available as UL listed corrosion resistant when specified on order.

Approvals

StyleSin
Model		K
Factor		135°F
57°C
155°F
68°C
200°F
93°C
†cULusNYC - DOB
MEA 101-92-E
Sidewall GL8128 8.1 — • • • •
GL8129 — • • • •
GL8174 • — — • •
U.L. Listing Design - Use Requirements For Light Hazards
*SIN
Model		StyleTEMPCeiling to
deflector distance		Width of
coverage		Length of
coverage		MIN. PRESSURE
P.S.I.		FLOW
G.P.M.
GL8128
GL8129		 Standard
&
Recessed		 135°F / 57°C
155°F / 68°C
**200°F / 93°C		 4" TO 6"
6" TO 12"		 16' 16' QR Models Shown on Page A-46
18'
20' 16.6 33
22' 20.8 37
***24' 26.8 42
GL8174 Standard
&
Recessed		 135°F / 57°C 12" TO 18" 16' 16' 12.0 28
18' 14.6 31
20' 18.7 35
22' 20.8 37
Note:
*Minimum 6' sprinkler spacing.
**200°F Sprinkler not listed for 16' x 22' OR 16' x 24'.
*** 24' Coverages not listed for recessed installations.

Cross Section

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 - Recessed Wrenches - P/N 325401, Rev. D
  • Quantity - Protective Caps - P/N 327109-CAP (Friction Fit Recessed)

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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-STD   Last Revised: October 2003   Revision: 5

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