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
Approvals
Finish
Ordering
Information
SIN Number
Approvals
HD 104 Sprinklers are UL Listed and FM Approved as
Standard Response with 5mm bulb.
HD 204 Sprinklers are UL Listed as Quick Response
and FM Approved as Standard Response with 3mm
bulb.
Factory Mutual (FM) does not approve concealed
sprinklers under quick response category.
FEBRUARY, 2020
Concealed Sprinkler
Standard Response with 5mm
glass bulb, Quick Response
with 3mm glass bulb
Standard Coverage
5.6 US (80 metric)
½" BSPT (NPT Optional)
175 PSI (12 Bar)
500 PSI (35 Bar)
7 PSI (0.5 Bar)
UL Listed & FM Approved
Sprinkler - Brass
Cover Plate - White/ Chrome
Plated
Style, Temp. Rating &
Response, Thread type,
Finish, Cover specification.
HD 104 Standard Response
HD 204 Quick Response
Response
Type
Type
SR
CONCEALED
QR
CONCEALED
* Only FM
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 decorative
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 6.5 mm (1/4") 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 service
equipments.
are Standard Response (5mm glass bulb) or Quick
response (3mm glass bulb) with standard coverage.
PAGE 1 OF 4
HD FIRE PROTECT
PVT. LTD.
Temp Rating
Bulb/Cover Plate
Code No
for UL
57°C / 57°C
T10138
T10102
68°C / 57°C
T10105
79°C / 68°C
T10140
93°C / 68°C
57°C (135°F)
68°C / 57°C
T10100
79°C / 68°C
93°C / 68°C
Table 1
HD
Pendent
Concealed
LISTED
Listing
Code No for
UL & FM
-
T10102F
T10105F
T10140F
-
-
T10100F*
-
T10101F*
-
T10104F*
Sprinklers
HD 284
Need help?
Do you have a question about the HD 104 and is the answer not in the manual?
Questions and answers