TYCO D3 User Manual
Type D3 PROTECTOSPRAY
Directional Spray Nozzles, Open,
Medium Velocity
Technical Services
800-381-9312
+1-401-781-8220
www.tyco-fire.com
General
Description
The TYCO Type D3 PROTECTOSPR AY Nozzles are open (non-automatic) directional spray nozzles and
they are designed for use in water
spray xed systems for re protection
applications. They are external deector type nozzles that discharge a uniformly lled cone of medium velocity
water droplets.
The D3 Nozzles are effective in covering exposed vertical, horizontal,
curved, and irregular shaped surfaces
in a cooling spray to prevent excessive absorption of heat from an external re and possible structural damage or spread of re to the protected
equip ment. In some applications, depending on water design density requirements, the Type D3 Nozzles
may also be used for re control or
extinguishment.
The Type D3 Nozzles are available in a
wide variety of orice sizes and spray
angles (included angle of dis charge)
to provide versatility in system design.
Refer to Technical Data Sheet TFP890
for information on Blow-Off Plugs that
can be used for applications where
protection is required against insect
infestation or accumulation of debris
within the nozzle orice.
It is recommended that the end user
be consulted with respect to the suitability of the materials of construction and nish for any given corrosive
environ ment. The effects of ambient
tempera ture, concentration of chemicals, and gas/chemical velocity,
IMPORTANT
Always refer to Technical Data
Sheet TFP700 for the “INSTALLER
WARNING” that provides cautions with respect to handling
and installation of sprinkler systems and components. Improper handling and installation can
permanently damage a sprinkler system or its components
and cause the sprinkler to fail
to operate in a fire situation or cause
it to operate prematurely.
should be con sidered, at a minimum,
along with the corrosive nature to
which the sprin klers may be exposed.
The Type D3 PROTECTOSPRAY Nozzle is a re-designation for the Gem
Type D3.
NOTICE
The Type D3 PROTECTOSPRAY Nozzles described herein must be installed and maintained in compliance
with this document, and with the applicable standards of the National Fire
Protection Association, in addition to
the standards of any authorities having
jurisdiction. Failure to do so may impair the performance of these devices.
The design of individual water spray
fixed systems can vary considerably,
depending on the characteristics and
nature of the hazard, the basic purpose of the spraying system, the configuration of the hazard, and wind/
draft conditions. Because of these
variations as well as the wide range of
available nozzle spray characteristics,
the design of water spray fixed systems for fire protection must only be
performed by experienced designers
who thoroughly understand the limitations as well as capabilities of such
systems.
Owners are responsible for maintaining their fire protection system and
devices in proper operating condition.
The installing contractor or sprinkler
manufacturer should be contacted
with any questions.
Technical
Data
Approvals
The natural nish, chrome plated, and
lead coated bronze, as well as stainless steel Type D3 PROTECTOSPR AY
Nozzles are UL and C-UL Listed, as
well as FM Approved.
Maximum Working Pressure
175 psi (12,1 bar).
Also refer to Figure 2, Note 2.
Discharge Coefficient
Refer to Table A.
Spray Angles
Refer to Table B.
Finish and Material
Refer to Table E.
Thread Connection
1/2 inch NPT.
Physical Characteristics
(Bronze)
Frame ................... Bronze
Deector................. Bronze
Splitter .................. Bronze
Pin ..................... Bronze
Physical Characteristics
(Stainless Steel)
Frame ...............ASTM A-743,
Grade CF-8M (equiv.Type 316 S.S.)
Deector............Type 316 S.S.
Splitter .............Type 316 S.S.
Pin ................Type 316 S.S.
Page 1 of 6 SEPTEMBER 2011 TFP802
TFP802
Page 2 of 6
Design
Criteria
Nozzle Placement. Where direct impingement of water spray onto all of
the protected surface is required by
the Authority having Jurisdiction, the
nozzles are to be spaced and directed
so that their spray patterns will completely cover the plane-of-protection
with the minimum required average
density; however, it is recommended that indoor nozzle spacing be 12
feet (3,7 m) or less and that outdoor
nozzle spacing be 10 feet (3,0 m) or
less. Where rundown or slippage is
planned, such as, exposure protection of vessels per NFPA 15, the above
rec ommended indoor and outdoor
spac ings also apply.
When used for protecting the surfaces
of a vessel, for example, the nozzles
are positioned normal to and approximately 2 feet (0,6 m) from the surface.
This approach, in conjunction with
a properly selected spray angle, will
tend to make more effective use of the
spray as well as help minimize the disturbance effects of wind/draft conditions on the water spray patterns.
Spray Patterns. The Design Spray
Proles for the nozzle spray angles of
65 to 180 degrees are shown in Figure 2 and apply to discharge pressures of 20 to 60 psi (1,4 to 4,1 bar).
Discharge pressures in excess of 60
psi (4,1 bar) will result in a decrease
in coverage area since the spray patterns tend to draw inwards at higher
pressures. Refer inquiries on higher
discharge pressures to the Technical
Services Department. The maximum
axial distances between the nozzle tip
and plane-of-protection, for exposure
protection, are given in Table C and D.
When the axial distance from the nozzle tip to the plane-of-protection is 3
feet (0,6 m) or less, the Design Spray
Prole is the same as the nominal
spray angles of 65 thru 140 degrees.
Main Pipeline Strainers. Main pipeline strainers per NFPA 15 are required for systems utilizing nozzles
with a ow path less than 3/8 inch
(9,5 mm) diameter, i.e., No. 16 thru No.
24 (Ref. Table A), and for any system
where the water is likely to contain
obstructive material.
Installation
The TYCO Type D3 PROTECTOSPR AY
Nozzles must be installed in accordance with the following instructions:
1-3/4"
(44,5 mm)
SPRAY ANGLE
(INCLUDED ANGLE
OF DISCHARGE)
STAMPED ON
DEFLECTOR
ORIFICE SIZE
STAMPED ON
WRENCHING
AREA
1/2" NPT
7/16" (11,1 mm)
NOMINAL MAKE-IN
2-1/16"
(52,4 mm)
2-1/2"
(63,5 mm)
FIGURE 1
TYPE D-3 PROTECTOSPRAY NOZZLES
NOMINAL DIMENSIONS
ORIFICE
SIZE
NO. 16 0.203” (5,16 mm) 1.2 17, 3
NO. 18 0. 250” (6,35 mm) 1.8 25,9
NO. 21 0. 2 8 1 ” ( 7,14 m m ) 2.3 3 3 ,1
NO. 24 0.328” (8,33 mm) 3.0 43,2
NO. 28 0.375” (9,53 mm) 4.1 59,0
NO. 32 0.438” (11,13 mm) 5.6 80,6
NO. 34 0.500” (12,70 mm) 7. 2 103,7
MINIMUM
DIAMETER
(GPM ÷ psi)
K-FACTO R
NFPA
TABLE A
SELECTION OF ORIFICE SIZES
65° 80° 95° 110 ° 125° 140 ° 160° 180 °
TABLE B
SELECTION OF SPRAY ANGLES
NOTICE
Obtain a leak-tight 1/2 inch NPT nozzle
joint by applying a minimum to maximum torque of 7 to 14 ft. lbs. (9,5 to
19,0 Nm). Higher levels of torque may
cause impairment of the nozzle.
Step 1. With pipe-thread sealant applied to the pipe threads, hand tighten
the nozzle into the nozzle tting.
Step 2. Tighten the nozzle into the
TYPE W11 SPRINKLER WRENCH
FIGURE 3
nozzle tting using only the W-Type 11
Sprinkler Wrench (Figure 3). With reference to Figure 1, apply the W-Type
11 Sprinkler Wrench to the wrenching
area.
PIN
DEFLECTOR
SPLITTER
WRENCHING
AREA
FRAME
ISO/SI
(LPM ÷ bar)
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