Page 53 - Mechanical Products Installation Handbook IH-1000M

INSTALLATION INSTRUCTIONS 45 Expansion Joints
Figure 7550 Expansion Joint
The following instructions apply to the Figure 7550 Expansion Joint Assembly as described in technical data sheet G460. The Figure 7550 Expansion Joint must be installed in accordance with the following instructions. Refer to Tech Data Sheet G460 for additional information.
•WARNING
Failure to follow these instructions may result in improper product instal- lation, joint failure or leakage, serious personal injury, and/or property damage.
Step 1. Install the Figure 7550 Expansion Joint Assembly on straight pipe runs in the pipe system in accordance with standard coupling installa- tion instructions (Figure 1).
Step 2. Verify that the installed Expansion Joint Assembly moves in the central direction of the pipe axis.
Step 3. Anchor the pipe system and install Pipe Guides (Figure 1).
Step 4. When using a support cradle, ensure that the support cradle flanges make contact only with the tangent to the coupling housings. Ensure these flanges do not interfere with the coupling lobes, nuts, or bolts ( Figure 2).
Step 5. After the pipe system is properly anchored and guided, remove the Retaining Bracket Assembly from the Figure 7550 Expansion Joint Assembly (Figure 3).
EXPANSION JOINT
ANCHOR END COUPLINGS (NOT INCLUDED)
GUIDES
ANCHOR
FIGURE 1 FIGURE 7550 EXPANSION JOINTS TYPICAL INSTALLATION
EXPANSION JOINT
DO NOT ALLOW SUPPORT CRADLE FLANGES TO INTERFERE WITH COUPLING LOBES, NUTS OR BOLTS
FIGURE 2 FIGURE 7550 EXPANSION JOINTS
ENSURE SUPPORT CRADLE FLANGES CONTACT ONLY TANGENT TO COUPLING HOUSINGS
SUPPORT CRADLE (FABRICATED BY OTHERS)
EXPANSION JOINT
FIGURE 3 FIGURE 7550 EXPANSION JOINTS RETAINING BRACKET DETAIL
RETAINING BRACKET