Design
Criteria
Figure 1 - Model ULTRA K17, Upright Sprinkler
Figure 2 - Cross Section
Model ULTRA K17, Upright Sprinkler
Figure 3 - W-Type 8, Sprinkler Wrench (Part #1068)
The Model Ultra K17, 16.8 K-factor Upright Specific
Application Storage Sprinklers (Ref. Table 1) are UL and
C-UL Listed for use in accordance with design parameters
set forth in Table 2 of this Data Sheet. If a sprinkler system
is designed in accordance with Table 2, additional column
protection is not required.
The Model Ultra K17, 16.8 K-Factor Upright Specific
Application Storage Sprinklers (Ref. Table 1) are FM
Approved for use in accordance with Table 3 of this Data
Sheet. These sprinklers are approved as "Control Mode
Specific Application Sprinklers". If a sprinkler system is
designed in accordance with FM Loss Prevention Data
Sheet 8-9 (3.3.8.2), additional column protection is not
required.
Table 1 - Laboratory Listings and Approvals
The Model Ultra K17 Upright Sprinklers
must be installed in
accordance with the following instructions.
NOTES
Do not install any bulb type sprinkler if the bulb is cracked or
there is a loss of liquid from the bulb. With the sprinkler held
horizontally, a small air bubble should be present. The
diameter of the air bubble is approximately 1/16 inch (1,6 mm)
for the 155
°
F/68
°
C to 3/32 inch (2,4 mm) for the 200
°
F/93
°
C
rating.
A leak tight 3/4 inch NPT sprinkler joint should be obtained
with a torque of 10 to 20 ft.lbs. (13,4 to 26,8 Nm). A maxi-
mum of 30 ft.lbs. (40.7 Nm) of torque is to be used to install
3/4 inch NPT sprinklers. Higher levels of torque may distort
the sprinkler inlet with consequent leakage or impairment of
the sprinkler.
Step 1. Upright sprinklers must be installed only in the upright
position. The deflector is to be parallel to the ceiling, roof, or
mounting surface, as applicable.
Step 2. With pipe thread sealant applied to the pipe threads,
hand tighten the sprinkler into the sprinkler fitting.
Step 3. Tighten the sprinkler into the sprinkler fitting using
only the W-Type 8 Sprinkler Wrench (Ref. Figure 3). With
reference to Figure 1, the W-Type 8 Sprinkler Wrench is to be
applied to the wrench flats only.
SPRINKLER
FRAME
DEFLECTOR
GLASS BULB
OPERATING
ELEMENT
GASKETED
SPRING PLATE
(BELLEVILLE
SEAL)
BUTTON
ASSEMBLY
COMPRESSION
SCREW
WRENCH
RECESS
SPRINKLER FINISH
Temperature
Bulb
Natural
Rating
Color Code
Brass
155
°
F/68
°
C
Red
200
°
F/93
°
C
Green
3
1,2,3
Installation
1-3/4
(44,5 mm)
WRENCH
FLAT
ELEVATION VIEW
2-3/8"
(60,3 mm)
7/16"
(11,1 mm)
3/4" NPT
Notes:
1. Listed by Underwriters Laboratories, Inc.
2. Listed by Underwriters Laboratories for use in Canada.
3. Approved by Factory Mutual Research Corporation.
OBSOLETE
