Std. Response - Std. Coverage
Institutional Pendent Sprinklers
Model PH-2, K=5.6
GENERAL DESCRIPTION
The Model PH-2, 5.6 K-Factor, Institutional Pendent Sprin-
klers are standard response - standard coverage, fusible
solder type spray sprinklers designed for use in correc-
tional, detention, and mental health care facilities.
The unique features of the Model PH-2 provide a tamper
resistant sprinkler design that helps eliminate the opportu-
nity for individuals to injure themselves or others with a
fire sprinkler. At the same time, the Model PH-2 optimizes
on an aesthetically appealing flush design that conceals
most of the operating parts.
WARNINGS
The Model PH-2 Pendent Sprinklers described herein
must be installed and maintained in compliance with this
document, as well as with the applicable standards of the
National Fire Protection Association, in addition to the
standards of any other authorities having jurisdiction. Fail-
ure to do so may impair the integrity of these devices.
The owner is responsible for maintaining their fire protec-
tion system and devices in proper operating condition.
The installing contractor or sprinkler manufacturer should
be contacted relative to any questions.
OPERATION
In the standby condition, the design of the Model PH-2 is
such that a suspended load of 80 lbs. (36 kg) or more ap-
plied to the linkage mechanism will release the sprinkler.
Also, when properly installed, the escutcheon is held fast
to the ceiling to deter removal of the escutcheon. The
shape of the escutcheon cannot easily be grasped, which
further deters tampering.
A fusible solder operating element secures the linkage
mechanism of the Model PH-2. When the rated tempera-
ture is reached, the solder melts to release the linkage
mechanism holding the sprinkler closed, which then al-
lows the sprinkler to activate by allowing the deflector to
extend downward, and water to flow.
TECHNICAL DATA
Approvals
UL and ULC Listed. NYCBSA #274-74-SA. (The Model
PH-2 listings apply only to the service conditions indi-
cated in the Design Criteria section.)
Maximum Working Pressure
175 psi (12,1 bar)
Pipe Thread Connection
1/2 inch NPT
Discharge Coefficient
K = 5.6 GPM/psi
1/2
(80,6 LPM/bar
1/2
)
Temperature Ratings
135°F/57°C, 165°F/74°C, or 212°F/100°C
Finish
Sprinkler: Chrome
Escutcheon: Chrome
Physical Characteristics
The Model PH-2 utilizes a brass body and bronze me-
chanical linkage with fusible solder; a silicone orifice seal;
and, a deflector assembly of bronze and copper. The es-
cutcheon is decorative plated 1/32 inch (0,8 mm) thick
sheet metal.
SIN S1687
Customer Service/Sales: Tel: (800) 558-5236 • Fax: (414) 570-5010
Technical Services: Tel: (800) 381-9312 • Fax: (800) 791-5500
3-01
1-5.2.10
TYCO FIRE PRODUCTS
OBSOLETE
