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Series 6500
Perma-Pax Packed Expansion Joints

Series 6500 Packed Expansion Joints are designed for installations where the principal movement is axial. Standard single and dual designs are available 2" through 24" diameter with travels of 4", 8" and 12" compression for single designs, and 8", 16" and 24" compression for dual designs. Service conditions are 150 and 300 psig to 500°F. Welded and flanged end connections are standard, with grooved ends optional.

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 1500 Laminated Bellows Expansion Joints are available for steel pipe systems 2” through 14” with 2” or 3” travel.

Series 3500 Externally Pressurized Expansion Joints are available 2” through 24” diameter with 4”, 6” & 8” travel for singles and 8”, 12” & 16” travel for duals.

Series 8500 Expansion Compensators are available 3/4” through 4” diameter. Steel pipe and copper tube configurations with travels of 2” or 3”.

Series 6500 Expansion Joint

Catalog 986 pdf 0.5 MB
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Canadian Registration
This product is registered throughout Canada under CRN 0D9278.59870YTNADD32

Off-Set Method

The off-set method incorporating
Hyspan Barco Ball Joints provides a viable alternative to packed and metal bellows axial expansion joints when there is a 90°change in pipe direction or a loop can be added to a pipe run. Ball joints do not require main anchors and extensive guiding.

Catalog Sections

Introduction and Table of Contents

Design Features


Table 1 Intermediate Guide Spacing

Travel Required

Anchor Forces

Table 2 Thermal Expansion of Pipe

Tables 3 Pressure Thrust and Seal Force Data

Materials of Construction

Table 4 Dimensional Data

Ordering Instructions

Table 5 Type 6501 & 6502 150 psig Design Data

Table 6 Type 6505 & 6506 150 psig Design Data

Table 7 Type 6501 & 6502 300 psig Design Data

Table 8 Type 6505 & 6506 300 psig Design Data

Installation Procedure & Maintenance Instructions

Five Year Limited Warranty

Copyright © Hyspan Precision Products, Inc. 2005. All rights reserved.
Hyspan ® is a registered trademark.