LA Type expansion joints

These tied custom metal expansion joints are designed for general pressure applications and cover the mid temperature and pressure range for general process equipment. 

Product Description

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 lateral movements.
  • Tied metal expansion joints retain pressure thrust developed by internal pressure, through the use of hardware.
Benefits:
  • Universally applicable
  • LA 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.
ITEMDESCRIPTION
1Center spool
2Bellows
3Weld end
4Tie rod
5Carrier ring

Technical Specifications

Operating range:

Diameter: DN 40 ... DN 2,500 (1.5" ... 100”)
Temperature: ... 700 °C (1,292 °F)
Pressure: max. 50 barg (1,160 PSIG)

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

Recommended applications:
  • Refining technology
  • Oil and gas industry
  • Power plant technology
  • Pulp and paper industry
  • Shipbuilding
  • Water and waste water technology
  • Gas and steam turbines
  • Conventional boilers
  • Coal feed transport systems
  • Ash transport systems
  • Water cooling systems
  • Air and steam transport lines

Notes:

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