Hyspan Perma-Pax - Model 6500 Series -Slip Expansion Joints

Packed slip expansion joints provide the ability to carry high pressures, large motions, and frequent cycling, in a compact length, with high reliability. Slip joints are designed for axial motion installations. Single and dual designs are available. Small to extreme motions are supported. Abrasion resistance is a benefit. Common applications include motions from thermal change. Services include steam and hot water pipe expansion, geothermal well riser expansion, high-temperature air, and abrasive media systems including tar and asphalt.

Hyspan is the single source for expansion compensation, seismic connections, and vibration isolation. Only Hyspan manufactures metal bellows expansion joints, packed slip expansion joints, ball joints, and metal hose assemblies. These products provide an unequaled ability to fill applications with the correct product. Hyspan’s sales staff is available to help with product selection and development. Representative organizations for Hyspan are located throughout the world.

Series 6500 expansion joints incorporate design features that are not available from other manufacturers. They include a one piece body which eliminates a circumferential weld, line bored aluminum bronze metal inner and outer guides, and an optimized sealing system consisting of carbon fiber graphite impregnated braided packing combined with Grafoil® Flexible Graphite injected packing.

These features combine to provide a standard product with the lowest seal resistance force available, self lubrication, and precision internal metallic guides. Series 6500 products are available from stock and include a Five year full replacement warranty.

Series 6500 expansion joints are designed for installations where the principal movement is axial. Standard single configurations are designed for 4″, 8″ and 12″ of axial compression (pipe expansion) and 1″, 1.5″ and 2″  extension respectively. Dual configurations are designed for 8″, 16″ and 24″ of axial compression and 2″, 3″ and 4″ extension respectively. If the primary movement is extension (pipe contraction), the expansion joint can be preset at the factory. The piping system must include anchors to react the force produced by pressure thrust and the friction force, to react the weight of the pipe and media, and guides to ensure that the pipe alignment is maintained.