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Material
1.Bellow:Stainless steels 304 316L 321 254 309 Inconel625 31803 etc
2.Flange,weld Ends:Carbon steel Stainless steels etc
3.Tie rod Nuts:Carbon steel Stainless steels etc
1. The expansion joint shall be installed according to the
engineering drawing of pipe line and the expansion joint
installations
2. In order to insure proper function of any expansion joints, it
is necessary that all pipe lines in which expansion joints are
located be suitably guided and anchored. The guides and anchors
must be installed strictly in accordance to relevant technical
documentation. Please refer to the “guideline for installation of
Expansion Joints” about the principle of using guides and anchors.
3. Since the bellows used in expansion joints are made of thin
stainless steel sheets, special attention shall be paid when
transporting, handing and welding to avoid damage of bellows caused
by dents, scores, arc strikes and weld spatters.
4. Any foreign laterals in the bellows and pipes shall be removed
to ensure the proper function of expansion joints before
installation.
5. If the flow direction is specified, be sure to install expansion
joint with the proper orientation with the respect of flow
direction arrow.
6. No movement of the expansion joint (such as axial compression or
extension, lateral offset, or rotation) due to piping misalignment
shall be imposed during installation so as to ensure proper
function of the bellows.