A-25 High Pressure Recessed Sprinkler

High Pressure Automatic Sprinklers Model GL Series Recessed Pendent

Description and Operation

The Globe Quick Response High Pressure Model GL 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 offers greatly increased safety to life and the ability to be used in areas where flowing and static pressure do not exceed 300 psi. These sprinklers should be used advisedly and under the direction of approving authorities having jurisdiction.

The heart of Globe’s Model GL 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)
175°F (79°C)
200°F (93°C)
286°F (141°C)
Water Working Pressure Rating -
300 psi (21 Bars)
Factory tested hydrostatically to 850 psi (59 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

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

Orifice Size	Nominal 'K' Factor	Thread Size	Length	Finishes
1/2" (15 mm)	5.6 (80 metric)	1/2" NPT	2 1/4" (5.7 cm)	Factory Bronze Bright Chrome White Polyester³Black Polyester³ Lead Coated²
17/32" (20 mm)	7.8 (111 metric)	1/2" NPT	2 1/4" (5.7 cm)¹
17/32" (20 mm)	8.1 (116 metric)	3/4" NPT	2 7/16" (6.2 cm)

Note:

Metric conversions are approximate.
¹EXCLUDING PINTLE.
²Finishes available on special order.
³Available As U.L. and C-UL 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	286°F 141°C	†cULus
Pendent Recessed	GL5602	5.6	•	•	•	•	•	•
	GL8102	7.8*	•	•	•	•	•	•
	GL8107	8.1	•	•	•	•	•	•

Note:

† Listed for all hazards.
* 17/32" X 1/2" NPT.

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
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

Discharge Tables & Spray Patterns

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: GLQR-300PSIR Last Revised: September 2004 Revision: 2