A-1 Pendent Sprinkler - GL4110/GL4910

Automatic Sprinklers Model GL4110 & GL4910 Pendent Recessed Pendent

Description and Operation

The Globe Model GL4110 and GL4910 Residential Sprinklers have a low profile yet durable design which utilizes a 3mm frangible glass ampule as the thermosensitive element. They feature economy, aesthetics and low flow.

The combination of the 3mm frangible glass ampule and specially designed deflector make the Model GL4110 and GL4910 Residential Sprinklers the ultimate in life safety and fire control. These Globe Pendent and Recessed Pendent Residential Sprinklers have met the strict requirements of Underwriters Laboratories Inc. as described in the UL Standard for Residential Sprinklers for Fire Protection Service, UL 1626, and should be used accordingly. These sprinklers should also be installed in accordance with the appropriate NFPA Standard 13, 13D or 13R and under the direction of the approving authorities having jurisdiction.

The heart of Globe's Model GL4110 and GL4910 sprinklers 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 Rating - 155°F (68°C), 175°F (79°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	155°F	68°C	Red	100°F	38°C
Intermediate	175°F	79°C	Yellow	150°F	66°C

Specifications and Approvals

Sin Model	K Factor	Thread Size	Length	Finishes	155°F 68°C	175°F 79°C³	cULus	NYC-DOB MEA 101-92-E
GL4110	4.1 (58 metric)	1/2" NPT	2 1/2" (6.4 cm)	Factory Bronze ¹Satin Chrome Bright Chrome White Polyester² Black Polyester² ¹Lead Coated	•	•	•	•
GL4910	4.9(68 metric)	1/2" NPT	2 1/2" (6.4 cm)		•	•	•	•

Note:

Metric conversions are approximate.
¹Finishes available on special order.
²C-U.L. Listed Corrosion Resistant - Polyester must be specified on order.
³ 175°F listed for up to 16' x 16' room size.

Cross Section

Gl5635

Installation Data

Pendent and Recessed Pendent

Model	Maximum Area of Coverage	Minimum Water Discharge & Pressures Needed Per Sprinkler*
GL4110	12' x 12'	11 G.P.M. - 7.2 P.S.I.
	14' x 14'	12 G.P.M. - 8.6 P.S.I.
	16' x 16'	14 G.P.M. - 11.7 P.S.I.
GL4910	12' x 12'	13 G.P.M. - 7 P.S.I.
	14' x 14'	14 G.P.M. - 8.2 P.S.I.
	16' x 16'	14 G.P.M. - 8.2 P.S.I.
	18' x 18'	18 G.P.M. - 13.5 P.S.I.
	20' x 20'	20 G.P.M. - 16.7 P.S.I.

*When these sprinklers are used in NFPA 13 systems, a 0.1 design density minimum shall be utilized.

Ordering Information

When ordering please specify the following.

Quantity
Model Number
Style
Orifice
Temperature
Finishes desired
Quantity - Wrenches - P/N 325390
Quantity - Recessed Wrenches - P/N 325391
Quantity - Protective Caps - P/N 327109-CAP (Friction Fit Recessed)

Product Related Documents

Residential Sprinkler Installation Guide

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: GL4110/GL4910 Last Revised: January 2009 Revision: 5