Installation
The Model J168 Upright Sprinklers are to be installed as
follows:
• Install in upright position only.
• Apply pipe thread sealant to NPT threads, hand
tighten into the sprinkler fitting.
• Install sprinkler by wrench boss only.
• Wrench tighten with the dedicated J1 Sprinkler
Wrench.
• A leak tight ¾ NPT (R¾) sprinkler joint can be
obtained with a torque of 14 - 20 ft. lbs.
• Higher torques may compromise the seal or func-
tion integrity of the sprinkler.
Maintenance
Model J168 Sprinklers should be inspected and the
sprinkler system maintained in accordance with NFPA
25. Do not clean sprinklers with soap and water, ammo-
nia or any other cleaning fluids. Remove dust by using a
soft brush or gentle vacuuming. Remove any sprinkler that
had been painted (other than factory applied) or damaged
in any way. A stock of spare sprinklers should be main-
tained to allow quick replacement of damaged or operated
sprinklers. Prior to installation, sprinklers should be main-
tained in the original cartons and packaging until used to
minimize the potential for damage to sprinklers that would
cause improper operation or non-activation.
Engineering Speci
fi
cation
Model J168 Standard Response
Upright Sprinkler
Sprinklers shall be standard response upright spray sprin-
klers cULus Listed for use in occupancy classifications up
to and including extra hazard, and for storage occupancies
in accordance with NFPA 13. Sprinkler construction shall
be a bronze, die-cast frame with grooved wrench flat and
copper-alloy deflector. Water seal assembly shall consist
of a fusible solder thermal element utilizing a center strut
solder-in-compression principle of construction with metal
Belleville spring washer, coated on both sides with Teflon
film. Sprinkler temperature rating shall be [165 °F (74 °C)]
[212 °F (100 °C)] [286 °F (141 °C)]. Sprinklers shall have
a nominal K-factor of 16.8 (241.9) and have a ¾” NPT (R)
thread. The rated working pressure shall be 175 psi (12.1
bar). Standard finish shall be bronze. Sprinklers shall be
Reliable Model J168 standard response upright sprinklers,
Bulletin 011 (SIN RA1124).
Special Application Finishes Option:
Exposed sprinklers subject to corrosive atmospheres shall
have a factory-applied [165 °F (74 °C) clear wax-coated]
[212 °F (100 °C) brown wax-coated] [lead plated for 165 °F
(74 °C), 212 °F (100 °C), or 286 °F (141 °C)] [wax-coated
over lead plated] corrosion resistant coating.
Note:
1. Grooved sprinkler boss provided to insure that the Sprinkler
wrench does not slip during installation.
2. A tight ¾” NPT sprinkler joint should be obtained with a torque of 14 to 20 ft. lbs. Higher levels of torque may distort the sprinkler inlet
cause leakage or impairment.
3.
