expansion joints - AR Thomson Group
expansion joints - AR Thomson Group
expansion joints - AR Thomson Group
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G<strong>AR</strong>LOCK SEALING TECHNOLOGIES<br />
Contents<br />
Elastomeric Expansion Joints<br />
Definition and Function . . . . . . . . . . . . . . . . . . . . . . 1<br />
Construction Details . . . . . . . . . . . . . . . . . . . . . . . . . 1<br />
Design Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2<br />
Control Units<br />
Definition and Purpose . . . . . . . . . . . . . . . . . . . . . . 6<br />
Standard Design . . . . . . . . . . . . . . . . . . . . . . . . . . . 6<br />
Special Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7<br />
Measuring and Evaluating Misalignment<br />
Flange-to-Flange Dimensions . . . . . . . . . . . . . . . . . 8<br />
Angular Misalignment . . . . . . . . . . . . . . . . . . . . . . . 8<br />
Lateral Misalignment . . . . . . . . . . . . . . . . . . . . . . . . 9<br />
Torsional Misalignment . . . . . . . . . . . . . . . . . . . . . 10<br />
Concurrent Misalignment . . . . . . . . . . . . . . . . . . . . 10<br />
Installation Procedures<br />
Removal of Old Expansion Joints . . . . . . . . . . . . . . 11<br />
Joint Handling and Transporting . . . . . . . . . . . . . . . 11<br />
Preparation for Installation . . . . . . . . . . . . . . . . . . . 11<br />
Joint Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . 11<br />
Control Unit Installation . . . . . . . . . . . . . . . . . . . . . 12<br />
Maintenance Procedures<br />
Visual and Physical Inspection . . . . . . . . . . . . . . . 14<br />
Troubleshooting Control Units . . . . . . . . . . . . . . . . 14<br />
Life Expectancy of Elastomeric Joints<br />
Storage Instructions . . . . . . . . . . . . . . . . . . . . . . . . 15<br />
Shelf Life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15<br />
Replacement Schedule . . . . . . . . . . . . . . . . . . . . . 15<br />
Appendix<br />
Tables I-V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16