TFP402
Page 2 of 4
Technical
Data
Approvals
UL Listed (for use with wet pipe and dry
pipe systems)
C-UL Listed (for use only with wet pipe
systems)
Certified to all requirements of
NSF/ANSI 61
Note:
Sprinklers with a polyester finish
are UL Listed as corrosion-resistant
sprinklers.
See the Design Criteria section for details
on these approvals.
Maximum Working Pressure
175 psi (12,1 bar)
Discharge Coefficient
K=3.0 GPM/psi
½
(43,2 LPM/bar
½
)
Temperature Rating
155°F (68°C) or 175°F (79°C)
Finishes
Natural Brass, Signal White Polyester
Coated, or Chrome Plated
Physical Characteristics
Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Brass
Button . . . . . . . . . . . . . . . . . . . . . . . . . . . Copper
Sealing Assembly . .Beryllium Nickel w/TEFLON
Bulb . . . . . . . . . . . . . . . . . . . . . . . . . .3 mm Glass
Compression Screw . . . . . . . . . . . . . . . . .Bronze
Deflector . . . . . . . . . . . . . . . . . . . . . . . . . .Bronze
Operation
The glass bulb contains a fluid that
expands when exposed to heat. When
the rated temperature is reached, the
fluid expands sufficiently to shatter the
glass bulb, allowing the sprinkler to
activate and flow water.
Design
Criteria
The TYCO RAPID RESPONSE Series
LFII Residential Pendent Sprinklers
(TY1234) are UL and C-UL Listed for
installation in accordance with the fol-
lowing criteria.
SURFACE
ESCUTCHEON
PLATE SEATING
1-9/16"
(39,7 mm)
-
2
Button
Temperature
rating is
indicated on
Deflector.
Deflector
Compression
Screw
Bulb
Sealing Assembly
-
6
*
-
4
5 -
3 -
*
*
6
4
5
1
3
2
Components:
Frame
1 -
1/2"
NPT
7/16" (11,1 mm)
MAKE-IN
NOMINAL
ESCUTCHEON
STYLE 20
RECESSED
WRENCH
(55,6 mm)
2-3/16"
FLATS
(73,0 mm)
2-7/8" DIA.
Insert
7 -
7
CROSS SECTION
PENDENT
RECESSED PENDENT
TY1234
2-7/8" DIA.
(73,0 mm)
(57,2 mm)
2-1/4" DIA.
MOUNTING
SPRINKLER
CLOSURE
SURFACE
FITTING
FACE OF
(11,1±3,2 mm)
7/16±1/8"
MOUNTING
PLATE
1-3/8" (34,9 mm)
1-1/8" (28,6 mm)
(3,2 mm)
1/8"
1/2" (12,7 mm)
1/4" (6,4 mm)
WRENCH RECESS
(END "A" USED
FOR TY1234)
RECESS
WRENCH
WITH SPRINKLER
ENGAGEMENT
IN TO ENSURE
WRENCHING AREA
PUSH WRENCH
FIGURE 1
RAPID RESPONSE SERIES LFII RESIDENTIAL
PENDENT AND RECESSED PENDENT SPRINKLERS (TY1234)
FIGURE 2
STYLE 20 RECESSED ESCUTCHEON FOR USE WITH THE
RAPID RESPONSE SERIES LFII RESIDENTIAL PENDENT SPRINKLER
(TY1234)
FIGURE 3
W-TYPE 6
SPRINKLER WRENCH
FIGURE 4
W-TYPE 7 RECESSED
SPRINKLER WRENCH
