TFP802
Page 3 of 6
Care and
Maintenance
The TYCO
Type D3 PROTECTOSPRAY
Nozzles must be maintained and ser-
viced in accordance with this section.
Before closing a fire protection sys-
tem main control valve for mainte-
nance work on the fire protection sys-
tem that it controls, permission to shut
down the affected fire protection sys-
tem must be obtained from the prop-
er authorities and all personnel who
may be affected by this action must
be notified.
Type D3 PROTECTOSPRAY Nozzles
must never be painted, plated, coated
or altered in any way after leaving the
factory; otherwise, the spray perfor-
mance may be impaired.
Care must be exercised to avoid dam-
age to the nozzles before, during, and
after installation. Nozzles damaged by
dropping, striking, wrench twist/slip-
page, or the like, must be replaced.
Frequent visual inspections are rec-
ommended to be initially performed
for nozzles installed in potentially cor-
rosive atmospheres to verify the in-
tegrity of the materials of construction
and finish as they may be affected by
the corrosive conditions present for a
given installation. Thereafter, annual
inspections per NFPA 25 are required.
Water spray fixed systems for fire
protection service require regularly
scheduled care and maintenance by
trained personnel. In addition to in-
specting nozzles for proper spray per-
formance during water flow trip tests
of the system, it is recommended
that nozzles be periodically inspected
for broken or missing parts (includ-
ing blow-off plugs where applicable),
loading/obstructions, or other evi-
dence of impaired protection. The in-
spections should be scheduled weekly
or as frequently as may be necessary,
and corrective action must be taken
to ensure that the nozzles will per-
form as intended in the event of a fire.
For installations subject to freezing
and where blow-off plugs have been
installed, a periodic inspection must
be performed for evidence of ice
build-up from trapped condensate
which could affect the proper release
of the blow-off plugs.
The owner is responsible for the in-
spection, testing, and maintenance of
their fire protection system and devic-
es in compliance with this document,
as well as with the applicable stan-
dards of the National Fire Protection
Association (e.g., NFPA 25), in addition
to the standards of any other authori-
ties having jurisdiction. The installing
contractor or sprinkler manufacturer
should be contacted relative to any
questions.
Water spray fixed systems are recom-
mended to be inspected, tested, and
maintained by a qualified Inspection
Service in accordance with local re-
quirements and/or national codes.
80°
65°
140°
95°
110°
125°
160°
180°
0,5
0
1,0
1,5
2,0
2,5
3,0
3,5
4,0
4,5
0
0,5 1,0 1,5 2,0 2,5
NOZZLE CENTERLINE, METERS
RADIAL DISTANCE FROM
AXIAL DIST
ANCE FROM NOZZLE, METERS
95°
65°
80°
110°
125°
140°
160°
180°
0
16
14
12
10
8
6
4
2
0
2
4
6
8
RADIAL DISTANCE FROM
NOZZLE CENTERLINE, FEET
AXIAL DIST
ANCE FROM NOZZLE, FEET
AXIAL DISTANCE
NOZZLE
PLANE OF
PROTECTION
PROFILE
SPRAY
(ORIENTATION)
FIXED ANGLE
GRAVITY
maximum Axial Distances shown in Tables C and D.
The shapes of the Design Spray Profiles remain essentially unchanged over the
Refer to the authority having jurisdiction for their minimum required residual pressures.
3.
psi (1,4 to 4,1 bar). For pressures up to 175 psi (12,1 bar) consult Tyco Fire Protection
Products Technical Services.
Design data applies to a residual (flowing) pressure range at the nozzle inlet of 20 to 60
Design data obtained from tests in still air.
2.
1.
NOTES:
DISTANCE
RADIAL
140°, the Design Spray Profile is the same as the nominal spray angle.
For axial distances of 2 feet (0,6 meters) and less and for nozzle spray angles of 65° to
4.
protection.
The maximum Axial Distances shown in Tables C and D are based on exposure
5.
FIGURE 2
WATER DISTRIBUTION DESIGN DATA
