Description
The Reliable Model J168 Upright is a standard-response standard coverage 16.8 (242) K-factor sprinkler utilizing a solder capsule thermal element in 165°F (74°C), 212°F (100°C), and 286°F (141°C) temperature ratings.
The solder is captured in the cylinder of the capsule by a stainless steel ball. When the solder melts, the ball moves into the cylinder allowing the thermal element to fall away from the sprinkler. When this occurs, the compressed strut and lever spring free from the sprinkler. System pressure then clears the waterway of all operating parts allowing the deflector to evenly distribute water.
The Model J168 is provided with 3/4-inch NPT or ISO 7-1 R3/4 threads, and is installed using the Model J1 sprinkler wrench.