|Step 1 - A Tuf-Lok coupling ring is placed over each square cut, deburred pipe end.
||Step 6 - The Tuf-Lok rubber gasket is positioned on one pipe end.
|Step 2 - The Tuf-Lok coupling rings are held in place using the nylon ring gauges provided, insuring correct welding position.
||Step 7 - Both pipe ends are butted together and the rubber gasket is centered.
|Step 3 - The coupling ring is tack welded in place between the ring gauges.
||Step 8 - The Tuf-Lok cover slips over the rings and against the rubber gasket.
|Step 4 - The nylon ring gauges are removed and the ring is con- tinuously welded on the pipe end side only. The weld does not need to be air tight.
||Step 9 - Bonded metal tabs on the Tuf-Lok gasket are positioned between cover halves.
|Step 5 -A simple soap solution is used to lubricate the Tuf-Lok seal for ease of installation.
||Step 10 - With both metal Tuf-Lok covers positioned over the welded rings, the covers are evenly tightened.