Page 30 - Mechanical Products Installation Handbook IH-1000M

22 INSTALLATION INSTRUCTIONS Couplings
Reducing Coupling
• WARNING
Always read and understand the instructions including the “Installation Guidelines” provided on page 15. Failure to follow these instructions may result in improper product installation, joint failure, leakage, serious personal injury, and/or property damage.
Note: Reducing Couplings are not recommended for applications below 40°F (4°C).
The following instructions apply to Figure 616 Reducing Coupling for Joining Copper Tubing Systems as described in Technical Data Sheet G511 and Figure 716 Flexible Reducing Coupling as described in Tech- nical Data Sheet G120.
Step 1. Follow the preliminary set-up steps of the Grooved Pipe and Gasket Preparation section on pages 16 and 17. Failure to follow these preliminary set-up steps before product installation can adversely affect subsequent system performance.
Step 2. Install the gasket by placing the gasket over the pipe that has the larger diameter. Bring the smaller pipe end into alignment and slide the pipe into position. Slide the gasket into posi- tion, properly centering it between the grooved portions of each pipe.
Note: The gasket should not protrude into the grooves on either pipe segment.
Step 3. With both bolts removed, place the coupling housings over the gasket. Verify that the housings are over the gasket and that the housing keys are fully engaged into the pipe grooves.
Step 4. Insert the bolts into the coupling and rotate the nuts until finger tight. Verify that the bolt heads are fully recessed in the housing.
Step 2.
Step 3.
Step 4.