HD FIRE PROTECT HD604 Quick Start Manual

CONCEALED PENDENT SPRINKLER
STANDARD & QUICK RESPONSE
TECHNICAL DATA
STYLE
TEMPERATURE
RESPONSE
COVERAGE
K-FACTOR
NOMINAL
THREAD SIZE
MAX. WORKING
PRESSURE
FACTORY
HYDROSTATIC
TEST PRESSURE
MIN. OPERATING
PRESSURE
SIN NUMBER
FINISH
ORDERING
INFORMATION
TEMPERATURE
RATING
Type SIN No.
135 (57) or 155 (68)
Standard
HD604
Response
175 (79) or 200 (93)
135 (57) or 155 (68)
Quick
HD704
Response
175 (79) or 200 (93)
135 (57) or 155 (68)
Standard
HD104
Response
175 (79) or 200 (93)
Quick
HD204
Response
JULY, 2024
Concealed Sprinkler
Standard Response with 5mm
glass bulb, Quick Response
with 3mm glass bulb
Standard Coverage
5.6 US (80 metric)
½" NPT or BSPT
175 psi (12 bar)
500 psi (35 bar)
7 psi (0.5 bar)
Standard Response:
HD 604 & HD 104
Quick Response:
HD 704 & HD 204
Sprinkler - Brass
Cover Plate - White/ Chrome
Plated/ Custom shade
Standard colour shade of
White Concealed Cover Plate
is RAL 9010.
SIN, Style, Temperature
Rating, Thread size, Finish,
Cover specification (concealed)
Refer to below Table
Sprinkler Cover
Temperature Temperature
Rating F ( C) Rating
O O
135 (57)
165 (73)
135 (57)
165 (73)
135 (57)
155 (68)
155 (68) 135 (57)
DESCRIPTION
Pendent Concealed Sprinklers
HD Pendent Concealed Sprinklers are thermo-sensitive
glass bulb sprinklers having decorative flat cover plate
designed to conceal the sprinkler for smooth ceiling.
The cover plates are available in several finishes to
match architectural requirements. The unique design
allows installation and testing of the sprinkler prior
to installation of the cover plate with cup. Sprinkler
housing is threaded to fix cover plate with cup assembly
to provide required vertical adjustment.
The cover plate and cup design allows installation
of the sprinkler and pressure testing of the fire
fighting system prior to installation of a suspended
ceiling or final painting of the ceiling. The sprinkler
cover assembly can be removed and reinstalled
for removal of ceiling panels for access to building
F ( C)
O O
service equipments. HD Pendent Concealed Sprinklers
are Standard Response (5mm glass bulb) or Quick
response (3mm glass bulb) with standard coverage.
HD Concealed Sprinklers are UL Listed.
Sprinkler Operation
The Sprinkler operating device is state of the art heat
responsive frangible glass bulb supplied by a world
leader in this innovative technology. The glass bulb
contains a fluid which expands when exposed to heat.
When the rated temperature is reached, the bulb
shatters and water flows through the sprinkler and
strikes the deflector, forming a uniform water spray
pattern to control or extinguish the fire.
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