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Anchors: The ends of a pressurized straight pipeline having expansion joints should be supported by anchors to resist the pressure thrust failing which the expansion joints will be elongated.

1. MAIN ANCHORS: A main anchor is installed where directional change takes place at the end of a line or between expansion joints of different sizes. They have to carry the full pressure thrust, the spring forces, and the frictional forces due to alignment guides and supports and in some cases, the weight of piping, fittings and contents.
a. At a change of direction flow
b. Between two expansion joints of different sizes
c. At the entrance of a side branch containing an expansion joint into the main line.
2. INTERMEDIATE ANCHORS: Intermediate Anchors divide long pipe runs, with Main Anchors at each end, into individual expanding sections. Intermediate Anchors must provide sufficient strength to withstand the spring forces required to cycle the expansion joint to its rated traverse.
The thrust forces action on the intermediate anchors cancel each other out.
3. Guides:
Guiding of the pipe is necessary for proper performance of an expansion joint. Property spaces alignment guides allow the pipe to move along its axis, prevent buckling of the pipe and squirming of the bellows.

As far as possible, expansion joints should be located adjacent to an anchor. Necessary provision should be made for installation of two alignment guides on the opposite side of the expansion joint, the first guide to be positioned at a maximum distance of 4 pipe diameters and the second within 14 pipe diameters of the first guide.
If a joint is installed at the center of a pipe or not be placed close to an anchor, two pipe guides should be installed in the same manner on both sides of the expansion joint.

Intermediate guides must be installed in accordance with standard practice to prevent buckling of the sting pipe.
Handle the assembly carefully to avoid any damage, such as dents, scores etc.

Remove all foreign particles between the corrugations.

The corrugations should be protected from welding spatter.

The Expansion Joint must be fitted to the direction of the flow in relation to the internal sleeve.
Do not subject the assembly to test pressure of deflections greater than specified on assembly drawing.
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