US Type expansion joints

US type expansion joints are used in flue gas (exhaust) systems and for general low pressure and high temperature applications. 

Product Description

Features:
  • US type expansion joints are used in flue gas (exhaust) systems.
  • For general applications with low pressure and high temperature.
  • Designed for small vibrations and relatively large axial and lateral movements.
Benefits:
  • Highly customizable design: Bellows geometry, material options and combinations
  • Multiply bellows with low spring rate and high cycle life

With loose / swivel flange connection:

  • Easy installation, flanges can be rotated
  • Flanges are not in contact with medium, which enables lower grade material
  • Connection with non weldable materials possible
  • Galvanic surfaces/ coatings possible
  • Gaskets can often be eliminated
 
ITEMDESCRIPTION
1Loose / swivel flange
2Bellows
3Internal liner (fixed)
4Internal liner (loose)

Technical Specifications

Operating range:

Diameter: DN 40 ... 5,000 (1.5" ... 200”)
Temperature: ... 900 °C (1,652 °F)
Pressure: max. 3.5 barg (50 PSIG)

Standards and approvals:

Design codes and options:
EJMA 9, EN 14917, EN 13480, EN13445-3, ASME B31.3

NDT and documentation:
Can be provided per customer request e.g. Material Certificates and NDT test reports.

Recommended applications:
  • Petrochemical industry
  • Chemical industry
  • Power plant technology
  • Shipbuilding
  • Flue gas duct systems
  • Engine exhaust systems