
TFP661
Page 2 of 4
areas where bare metal is exposed.
NOTES: Only retouching of the wax
coating applied to the wrench flats
and frame arms is permitted, and
the retouching is to be performed
only at the time of the initial sprinkler
installation.
The steel rod should be heated only to
the point at which it can begin to melt
the wax, and appropriate precautions
need to be taken, when handling the
heated rod, in order to prevent the
installer from being burned.
If attempts to retouch the wax coating
with complete coverage are unsuccess-
ful, additional wax can be ordered in the
form of a wax stick (the end of which
is color coded). Only the correct color
coded wax is to be used, and retouch-
ing of wrench ats and frame arms
is only permitted at the time of initial
sprinkler installation. With the steel rod
Design
Criteria
The Series TY-B Conventional Sprin-
klers are intended for re protection
systems designed in accordance
with the standard installation rules
recognized by the applicable Listing
or Approval agency (e.g., UL Listing is
based on NFPA 13 requirements). The
Series TY-B Conventional Sprinklers
are only for non-recessed applications.
Installation
The Series TY-B Sprinklers must
be installed in accordance with this
section.
General Instructions
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 135°F (57°C) to 3/32
inch (2,4 mm) for the 360°F (182°C)
temperature ratings.
A leak tight 1/2 inch NPT sprinkler joint
should be obtained with a torque of 7
to 14 ft.-lbs. (9,5 to 19,0 Nm). 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). Higher levels
of torque may distort the sprinkler inlet
and cause leakage or impairment of the
sprinkler.
Step 1. With pipe thread sealant
applied to the pipe threads, hand
tighten the sprinkler into the sprinkler
tting.
Step 2. Tighten the sprinkler into the
sprinkler tting using only the W-Type
6 Sprinkler Wrench (Ref. Figure 2),
except that an 8 or 10 inch adjustable
Crescent wrench is to be used for wax
coated sprinklers. With reference to
Figure 1, the W-Type 6 Sprinkler Wrench
or the Crescent wrench, as applicable,
is to be applied to the wrench ats.
When installing wax coated sprinklers
with the adjustable Crescent wrench,
additional care needs to be exercised
to prevent damage to the wax coating
on the sprinkler wrench ats or frame
arms and, consequently, exposure of
bare metal to the corrosive environ-
ment. The jaws of the wrench should be
opened sufciently wide to pass over
the wrench ats without damaging the
wax coating. Before wrench tightening
the sprinkler, the jaws of the wrench
are to be adjusted to just contact the
sprinkler wrenching anges. After
wrench tightening the sprinkler, loosen
the wrench jaws before removing the
wrench.
After installation, the sprinkler wrench
ats and frame arms must be inspected
and the wax coating retouched
(repaired) whenever the coating has
been damaged and bare metal is
exposed. The wax coating on the
wrench ats can be retouched by gen-
tly applying a heated 1/8 inch diameter
steel rod to the areas of wax that have
been damaged, to smooth it back over
*
****
*
SHOWN
SHOWN
CROSS SECTION
CROSS SECTION
7/16" (11,1 mm)
NOMINAL
MAKE-IN
ESCUTCHEON
PLATE SEATING
SURFACE
ESCUTCHEON
PLATE SEATING
SURFACE
Pipe thread connections per
ISO 7-1 can be provided on
special request.
indicated on Deector
or adjacent to orice
seat on Frame.
WRENCH
FLATS
WRENCH
FLATS
Sealing
Assembly
Compression
Screw
1/2"
NPT
2-3/16"
1-1/2"
(38,1 mm)
1-1/2"
(38,1 mm)
2
4
5
6
1
33
1
2
5
4
6
7
1
2
Bulb
Button
Frame
-
-4-Ejection
Spring
7-
3-
5-
Deector6 -
3/4"
NPT
1/2" (12,7 mm)
NOMINAL
MAKE-IN
2-1/4"
(57,2 mm)
WRENCH RECESS
1/2" NPT MODELS)
WRENCH RECESS
(END "B" USED FOR
FIGURE 1
SERIES TY-B 5.6 K-FACTOR (TY3651) AND 8.0 K-FACTOR (TY4651)
STANDARD RESPONSE CONVENTIONAL SPRINKLERS
FIGURE 2
W-TYPE 6
SPRINKLER WRENCH