Single Open Arch Expansion Joint	Double Open Arch Expansion Joint	Single Sphere Flexible Joint	Double Sphere Flexible joint
Flexible 45 degree Elbow Joint	Soft Flexible Joint	Flexible Joint(Straight Type)	Double Sphere Flexible Joint(Union Type)

Single Arch Type	Multiple Arch Type
Fabric and rubber construction Reinforced with metal / wire rings Full face flanges integral with joint body minimum joint Flanges drilled to companion bolt pattern Gaskets not required	Accommodates greater movement than single arch joint Length is depentent on the numbers of arches Maximum of four(4) arches recommended to maintain lateral stability

Offser Type	Sleeve Type
Custom built to specifications Will compensate for initial misalignment and non-parallelism of piping axis Complete drawings and specifications recommended with inquiries / orders	Same design as single arch type except that the sleeve ends have an I.D. equal to the pipe O.D. Will slip over straight ends of open pipe Recommended for low pressure service only

Tape Reducer Type

Will connect piping of different diameters May be manufactured as concentric tapered joints : with the axis of each end concentric with the other May als o be manufactured eccentric : each axis offset from the other end. Tapers of 15 or less are recommended Pressure ratings are based on larger I.D. Available with / without arches.

Movements In Industrial Piping   [top]

Axial Compression	Longitudinal movement shortens face-to-face dimension along axis of expansion joint / flexible coupling Pipe flanges remain perpendicular to axis
Axial Elongation	Longitudinal movement lengthens face-to-face dimension along axis of expansion joint / flexible coupling Pipe flanges remain perpendicular to axis
Torsional Movement	Rotation of one flange with stationary counterpart Simultaneous rotation of flanges in opposing motion
Lateral / Transverse Movement	Offset movement of one/both pipe flanges both flanges remain parallel to each other while forming angle to axis of joint
Angular Movement	Deflection/rotation of one or both flanges Angle with axis of expansion joint/flexible coupling is formed
Vibration	By definition : oscillation movement around axis of expansion joint/flexible coupling Pipe flanges remain parallel with each other Flanges remain perpendicular to axis Mechanical vibration in steel piping system reduced with installation of pipe connectors/expansion joints

TWIN-SPHERE CONNECTORS
Axial Compression	Axial Elongation	Transverse Movement	Angular Deflection
SINGLE-SPHERE CONNECTORS
Axial Compression	Axial Elongation	Transverse Movement	Angular Deflection

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