AN Type
expansion joints

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AN Type
expansion joints

AN Type <br/>expansion joints
Request product
Item Description
1 Weld end
2 Hinge
3 Lug
4 Bellows
5 Liner

AN Type
expansion joints

Features

  • Tied custom metal expansion joints for general pressure applications.
  • Designed for, and cover the mid temperature and pressure range for general process equipment.
  • Mainly for angular movements.
  • Tied metal expansion joints retain pressure thrust developed by internal pressure, through the use of hardware.

Advantages

  • Short build in length
  • Universally applicable
  • AN types do not require anchor points being designed for obtaining pressure thrust, due to the installed hardware.
  • Highly customizable design: Bellows geometry, material options and combinations.
  • Multiply bellows with low spring rate and high cycle life.

Operating range

Diameter: DN 40 ... DN 1,600 (1.5" ... 60”)
Temperature: ... 700 °C (1,292 °F)
Pressure: max. 50 barg (1,160 PSIG)

Materials

  • Bellows: 1.4541 (AISI 321); 1.4301 (AISI 304); 1.4306 (AISI 304L); 1.4401 (AISI 316); 1.4404 (AISI 316L); 1.4571 (AISI 316Ti); 1.4828 (AISI 309); 1.4547(254 SMO); 2.4816 (Inconel® 600); 2.4856 (Inconel® 625/LCF); 1.4876 (Incoloy® 800/H)
  • Connections: 1.0038 – (S235JRG2); 1.0460 – (P250GH); 1.0315 – ; 1.0254 (P235TR1); 1.0425 – (P265GH); 1.5415 – (16Mo3); 1.7335 – (13CrMo4-5); 1.4401 (AISI 316); 1.4404 (AISI 316L); 1.4541 (AISI 321)
  • Flanges: 1.0038 - S235JRG2; 1.0425 - P265GH; 1.0315 - P235G2TH; 1.0254 (P235TR1); 1.0425 - P265GH; 1.5415 - 16Mo3; 1.7335 – 13CrMo4-5; 1.4404 (AISI 316L); 1.4436 (AISI 316)


Other materials are available on request.

Standards and approvals

Design code:
EJMA 9, PED 97/23/EC according to: EN 13480, EN 13445, EN 14917, AD2000 and ASME B31.3

NDT and documentation:
According to PED 97/23 EC rules and regulations (declaration of conformity).
Documentation can be provided per customer request e.g.:
- Test, measurement or calculation reports
- Material test or inspection certificates
- Design, type or 3rd party approval

Notes

Tied metal expansion joints might require alignment guides to ensure the expansion joint only see the intended movements.


Product variants

AN1: Tied single hinged expansion joints
Equipped with a hinge. Designed for single plane angular movements. Shown with weld ends, lugs with hinges.
AN2: Tied single gimbal expansion joints
Equipped with a gimbal. Designed for multi plane angular movements. Shown with weld ends, carrier rings with gimbal.

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The Eagleburgmann Group

Sealing technology for plants and machines

EagleBurgmann is one of the worldwide leading providers of industrial sealing technology. Mechanical seals, seal supply systems, magnetic couplings, carbon floating ring seals, expansion joints, gaskets and packings as well as comprehensive services are used wherever reliability and safety are needed.

Mechanical seals and more

Sealing technology by EagleBurgmann is used worldwide in oil and gas industries, refineries, the petrochemical, chemical, and pharmaceutical industries, food processing, energy, water, mining, paper, aerospace, and other industries. Close to 5,800 employees provide their ideas, solutions, and commitment so that customers can rely on our sealing technology.

What makes us stand out is our excellent quality, great innovative capacity, and an extensive product portfolio for nearly all industrial processes and fields of application. Our product portfolio includes everything from mechanical seals and seal supply systems to magnetic couplings, carbon floating ring seals, expansion joints, and gaskets and packings as well as comprehensive services. Since we are part of the German Freudenberg and Japanese EKK group, we have all the necessary resources for a firmly based reliable partnership.

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