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Single Pipe Expansion Joint

The single pipe expansion joint is simply a bellows element with end connections. Regardless of accessories, it will deflect in any direction or plane that the bellows will. It requires that the piping be controlled as to the direction of the movements required of the unit. The pipe expansion joint should not be expected to control the movement of the pipe, and will not resist any deflections with any force other than the resistance of the bellows.

16" Dia. Stainless Steel Single Expansion Joints Designed for a Pipeline
84" & 14" Dia. Single Expansion Joints Custom Designed for a Pipeline in a Utility Plant
10' Long Expansion Joints Designed for a Nuclear Energy Facility
PTFE Coated Single Expansion Joints For A Power Plant in Mississippi
Custom Designed Single Expansion Joints for a Pipeline in China
Custom Single Expansion Joints for Oil Pipeline Application

Single and Multi-ply Expansion Joint Bellows

50 PSIG Single and Multi-ply Expansion Joint Bellows
85 PSIG Single and Multi-ply Expansion Joint Bellows
150 PSIG Single and Multi-ply Expansion Joint Bellows
300 PSIG Single and Multi-ply Expansion Joint Bellows

Single Expansion Joints by Nominal Diameter

3 Inch Single Expansion Joint
3 1/2 Inch Single Expansion Joint
4 Inch Single Expansion Joint
5 Inch Single Expansion Joint
6 Inch Single Expansion Joint
8 Inch Single Expansion Joint
10 Inch Single Expansion Joint
12 Inch Single Expansion Joint
14 Inch Single Expansion Joint
16 Inch Single Expansion Joint
18 Inch Single Expansion Joint
20 Inch Single Expansion Joint
22 Inch Single Expansion Joint
24 Inch Single Expansion Joint
26 Inch Single Expansion Joint
28 Inch Single Expansion Joint
30 Inch Single Expansion Joint
32 Inch Single Expansion Joint
34 Inch Single Expansion Joint
36 Inch Single Expansion Joint
38 Inch Single Expansion Joint
40 Inch Single Expansion Joint
42 Inch Single Expansion Joint
44 Inch Single Expansion Joint
46 Inch Single Expansion Joint
48 Inch Single Expansion Joint
50, 52, 54 Inch Single Expansion Joint
60, 66, 72 Inch Single Expansion Joint
84, 96 Inch Single Expansion Joint
108, 120, 132 Inch Single Expansion Joint
144, 156 Inch Single Expansion Joint

Features

  • Absorbs small amounts of axial, lateral, and angular movements
  • Deflect in any direction
  • Most economical
  • Must be guided
  • Requires main and directional anchors

Technical Information

Installation & Maintenance (Metallic Expansion Joints)
Metal Bellows Material
Types of Metallic Bellows Deflections
Bellows Expansion Joint Loads
How to Look for Signs of Expansion Joint Failure
View more Technical Information

FAQs

How do you do a fatigue life cycle test for bellows?

How long is a burst test on an expansion joint?

View more FAQs

 

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Single Pipe Expansion Joint Data Tables

This pipe expansion joint is simply a bellows element with end connections. Regardless of accessories, such as liners and covers, it will deflect in any direction or plane that the bellows will. It is the least expensive type but requires that the piping be controlled as to the direction of the movements required of the unit. The pipe expansion joint should not be expected to control the movement of the pipe. If the piping analysis shows that the pipe expansion joint must accept axial compression, then the piping must be guided and constrained so that only that movement will occur. This expansion joint will not resist any deflections with any force other than the resistance of the bellows, which is a function of the spring rate times the deflection amount. It is incapable of resisting the pressure thrust along its axis, which is the product of the pressure times the effective, or cross-sectional, area of the bellows. Large diameter units, even with low pressures, can generate very large axial pressure thrust forces, which must be reacted by main and directional anchors. Otherwise, the expansion joint will extend with disastrous results.

 

 

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