Installation
The Series TY-B Sprinklers must be
installed in accordance with the follow-
ing 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 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 maxi-
mum of 21 ft. lbs. (28,5 Nm) of torque
may be used to install sprinklers with
1/2 NPT connections. A leak tight 3/4
inch NPT sprinkler joint should be ob-
tained with a torque of 10 to 20 ft.lbs.
(13,4 to 26,8 Nm). A maximum of 30
ft.lbs. (40,7 Nm) of torque is to be used
to install sprinklers with 3/4 NPT con-
nections. Higher levels of torque may
distort the sprinkler inlet with conse-
quent leakage or impairment of the
sprinkler.
Step 1.
With pipe thread sealant ap-
plied to the pipe threads, hand tighten
the sprinkler into the sprinkler fitting.
Step 2.
Tighten the sprinkler into the
sprinkler fitting 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 flats.
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 flats or frame
arms and, consequently, exposure of
bare metal to the corrosive environ-
ment. The jaws of the wrench should
be opened sufficiently wide to pass
over the wrench flats without damag-
ing the wax coating. Before wrench
tightening the sprinkler, the jaws of the
wrench are to be adjusted to just con-
tact the sprinkler wrenching flanges.
After wrench tightening the sprinkler,
loosen the wrench jaws before remov-
ing the wrench.
After installation, the sprinkler wrench
flats and frame arms must be in-
spected and the wax coating re-
touched (repaired) whenever the coat-
ing has been damaged and bare metal
is exposed. The wax coating on the
wrench flats 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
areas where bare metal is exposed.
NOTES
Only retouching of the wax coating ap-
plied 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 unsuc-
cessful, 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
retouching of wrench flats and frame
arms is only permitted at the time of
initial sprinkler installation. With the
steel rod heated as previously de-
scribed, touch the rod to the area re-
quiring additional wax with the rod an-
gled downward, and then touch the
wax stick to the rod approximately one-
half inch away from the area requiring
retouching. The wax will melt and run
down onto the sprinkler.
Page 2 of 4
TFP661
FIGURE 1
SERIES TY-B 5.6 K-FACTOR (TY3651) AND 8.0 K-FACTOR (TY4651)
STANDARD RESPONSE CONVENTIONAL SPRINKLERS
*
Temperature rating is indicated on deflector or adjacent to
orifice seat on frame.
**
Pipe thread connections per ISO 7/1 can be provided on
special request.
1 - Frame
2 - Button
3 - Sealing
Assembly
4 - Bulb
5 - Compression
Screw
6 - Deflector
2
4
5
6
(55,6 mm)
2-3/16"
(38,1 mm)
1-1/2"
(57,2 mm)
2-1/4"
(38,1 mm)
1-1/2"
PLATE SEATING
ESCUTCHEON
7/16" (11,1 mm)
NOMINAL
MAKE-IN
FLATS
WRENCH
SURFACE
1
3
3
1
2
5
4
6
*
*
1/2" (12,7 mm)
MAKE-IN
NOMINAL
ESCUTCHEON
PLATE SEATING
SURFACE
3/4"
FLATS
WRENCH
NPT
**
NPT
1/2"
**
7
PENDENT
SHOWN UPRIGHT
CROSS SECTION
PENDENT
CROSS SECTION
SHOWN UPRIGHT
SHOWN
SHOWN
FIGURE 2
W-TYPE 6 SPRINKLER
WRENCH
WRENCH RECESS
(END "A" USED FOR
1/2" NPT MODELS)
WRENCH RECESS
(END "B" USED FOR
3/4" NPT MODELS)
OBSOLETE
