
APR 2017 GFS-520a (Formerly A-58)
EXTENDED
QUICK RESPONSE
AUTOMATIC SPRINKLERS
GL SERIES DRY TYPE
HORIZONTAL SIDEWALL
DESCRIPTION AND OPERATION
RECESSED
SPRINKLER TEMPERATURE RATING/CLASSIFICATION and COLOR CODING
• 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 - brass •Spring - nickel alloy •Seal - teflon
•Retainer - brass •Pin - stainless steel
•Torsion Spring - stainless steel •Orifice Insert - brass
• Bulb - glass with alcohol based solution, 3mm size
•3/4”NPT or 1”NPT •Outer Tube - galvanized steel pipe
• Inner Tube - stainless steel
TECHNICAL DATA
• See reverse side for Approvals and Specifications.
• Temperature Ratings -
135°F (57°C), 155°F (68°C), 175°F (79°C)
200°F (93°C), 286°F (141°C)
SLEEVE & SKIRT
SURFACE MOUNT
CLASSIFICATION AVAILABLE SPRINKLER
TEMPERATURES BULB COLOR N.F.P.A. MAXIMUM CEILING
TEMPERATURE
ORDINARY
INTERMEDIATE
HIGH
135°F/155°F
175°F/200°F
286°F
57°C/68°C
79°C/93°C
141°C
ORANGE/RED
YELLOW/GREEN
BLUE
100°F
150°F
225°F
38°C
66°C
107°C
The Globe Quick Response GLSeries Dry Type Horizontal Sidewall
Sprinkler is designed for use in special applications such as freezing
environmentsandconditionswheresedimentorforeignmaterialsmight
accumulate in ordinary horizontal pipe nipples.
The Globe Quick Response GLSeries Dry Type Horizontal Sidewall
Sprinklerutilizesa3mmfrangibleglassampuleasthethermosensitive
element. This provides sprinkler operation approximately six times
faster than ordinary sprinklers. At the ampule's rated temperature,
the sprinkler opens releasing the bulb seat, causing the inner tube
assembly to move, allowing the spring assembly to pivot alongside
the inner tube. At this time, water flows through the sprinkler and is
distributedby the deflector, in an approved discharge pattern.It can be
installedwhereverstandardspraysprinklersarespecifiedbutoffersthe
additional feature of greatly increased safety to life. Quick Response
Sprinklersshouldbeusedadvisedlyandunderthe direction of approv-
ing authorities having jurisdiction.
The heart of Globe's GLSeries sprinkler proven actuating assembly
isahermeticallysealedfrangibleglassampulethatcontainsaprecisely
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.