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A-37 Extended Coverage Light Hazard Concealed (Dome) Pendent Sprinkler - GL8104

Automatic Sprinklers Model GL8104 Concealed Pendent

Description and Operation

The Globe Quick Response Model GL8104 Extended Coverage Concealed Pendent Sprinkler is a low profile, aesthetically pleasing design. It provides sprinkler operation approximately six times faster than ordinary sprinklers and can be installed wherever standard concealed spray sprinklers are specified when allowed by the applicable standards, and in accordance with NFPA 13. It offers the additional feature of greatly increased safety to life and should be used advisedly and under the direction of approving authorities having jurisdiction. All that is seen at the ceiling is a 3 9/32" diameter ceiling plate color finished to match the specifier's exact requirements. The Model GL8104 Concealed Sprinkler may be virtually invisible as it does not interrupt the "smooth flow" of the ceiling. Globe's Concealed Sprinkler utilizes its 3mm frangible glass ampule type sprinkler which is located above the ceiling and concealed from view by the ceiling plate. The ceiling plate is soldered to the sprinkler's special upper support assembly in three places. Upon the application of sufficient heat, the plate falls to the floor exposing the quick response pendent spray sprinkler. At the ampule's rated temperature, the sprinkler opens discharging water onto the floor in its required and approved distribution pattern.

A special spring is attached to the pendent sprinkler deflector that serves to provide a constant tension against the ceiling plate. This feature virtually ensures freedom from environmental vibration problems.

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	2 1/2" (6.4 cm)	Bright Chrome White Painted *Satin Chrome *Bright Brass *Other Painted Finishes

Note:

• Metric conversions are approximate.
• ^*Finishes available on special order.  For painted plates other than white, contact Globe
•  for ordering specifications.

Approvals

Style	Sin Model	K Factor	135°F (57°C) with plate 135°F (57°C)	155°F (68°C) with plate 135°F (57°C)	175°F (79°C) with plate 155°F (68°C)	200°F (93°C) with plate 155°F (68°C)	cULus	NYC - DOB MEA 101-92-E
Concealed Pendent	GL8104	8.1	•	•	•	•	•	•

U.L. Listing Design - Use Requirements For Light Hazards

Style	Sin Model	Tempr	Room Size	MIN. PRESSURE P.S.I.	FLOW G.P.M.
Concealed Pendent	GL8104	135°F / 57°C 155°F / 68°C 175°F / 79°C 200°F / 93°C	16' x 16'	10.3	26
			18' x 18'	15.6	32
		135°F / 57°C	20' x 20'	24.4	40

Minimum 8' Sprinkler Spacing

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
• Thread Sizes
• Temperature
• Finishes desired
• Quantity - Concealed Wrenches - P/N 325401
• Quantity - Protective Caps - P/N 327119

Product Related Documents

• Discharge Tables & Spray Patterns

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