Definition of Movement and
Variations of Construction
Axial Compression Reduction of face-to-face dimension measured along the axis. |
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Axial Elongation Increase of face-to-face dimension measured along the axis. |
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Transverse or Lateral Movement The movement of the joint perpendicular to the axis. |
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Vibration Absorption The movement of the joint due to vibrations which are effectively intercepted and insulated against transmission to remainder of system. |
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Angular Movement The displacement of the longitudinal axis of the joint from its initial straight line position (a combination of axial elongation and axial compression) |
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Flexibility is the Key to our Success
Unaflex® offers the greatest variety of Expansion Joints available to industry. Extensive inventory of standard products as represented on this web site to custom variations of almost any configuration imaginable, are capabilities we pride ourselves on!
Tapered Joints Tapered joints are used to connect pipelines of unequal diameter. They may be manufactured as concentric or eccentric, depending upon pipe alighnment. |
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Offset Joints Offset joints are used to correct initial misalignment greater than 1/8 inch. Drawings must accompany orders with inquiries for offset joints. |
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Sleeve-Type Joints This type of joint is constructed as a standard spool-type joint minus the integral flanges. The I.D. of the sleeve end is the same as the O.D. of the pipe. |
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Filled Arches Filled arches are built as an integral part of the carcass. Their function is to reduce turbulence and prevent the collection of sediment in the archway. Although they are of low durometer filler stock, movement of the joint is reduced approximately 50%. |
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Multiple Arches The purpose of additional arches is to increase movement to the joint. Movement of a multiple arch joint can be calculated by multiplying the movement of a single arch joint by the number of arches. |
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Rectangular Rectangular or square expansion joints are available in light-weight ducting constructions to heavy duty styles for connection between turbine and condensers. |
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No Arch These joints are available for applications where vibration or sound is a factor, but movement is not. |
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Wide Arch This type of joint is available when the greatest amount of movement in the shortest possible space is required. Wide arch constructions are available with all the above mentioned variations. |
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