NEW: hinged pipe expansion joint by Spiroflex d.o.o.

Double hinged expansion joint consists of two single hinged expansion joints connected with intermediate pipe and welded bars with double hinge restraints to absorb pressure thrust, axial force due to the effect of pressure

Application of this expansion joint is for compensating large lateral movement.

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Spiroflex d.o.o.

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Pipe expansion joints

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NEW: metal pipe expansion joint by Spiroflex d.o.o.

Axial expansion joints are designed to accept movements of extension and compression in the axis direction

The length of expansion joint in neutral position is called free length. The longest service life is achieved by exploiting the axial shift in both directions as extension (+Δax) and compression (-Δax). When it is known that movement will be in one direction, to utilize the complete all available movement we propose to install expansion joint under “prestress”. The expan...

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NEW: pressure-balanced pipe expansion joint by Spiroflex d.o.o.

They are designed with several bellows where the effective area of the balancing bellows is twice that of the line bellows

The pressure thrust forces cancel acting across the tie rods attached to the tie flanges. The anchors are only loaded by the displacement forces in expansion joints.

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NEW: metal pipe expansion joint by Spiroflex d.o.o.

Mounting and demounting of valves or similar devices in the rigid pipelines is quite a difficult job

In the pipeline with high pressure and larger sizes with strong anchors at the ends of straight sections, Spiroflex recommends mount-demount expansion joints. The expansion joints are equipped with restrain screws which bridge convoluted part of expansion joint and they absorb the pressure thrust force due to the internal pressure of pipeline. Furthermore the mount-demou...

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