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BEST-IN-CLASS

LENS EXPANSION JOINTS

Lens Expansion Joints are the custom requirements in cases where the application requires a single layer bellow. If the material thickness of the single layer bellow is more than 4 mm, the supply of a normally manufactured bellow is no longer possible. In this case, Lens Expansion Joints are the optimum solution. Normally issues concerning material thickness are solved by the supply of a multilayer bellow but in some cases, this is not accepted by the customer and/or the application.

 

Design range within Lens Expansion Joints

Belman Lens Expansion Joints can be designed within the range:

Dimensions

DIMENSIONS:
Diameter: up to DN 2500
Larger dimensions can be
discussed on request

Test and Quality Control

RADIUS:
Radius (R): 15, 20, 30, 50, 60 and 80 mm
1,5 mm: Max. R =15
2+3 mm: Max. R =30
4+5 mm: Max. R =60
6+8 mm: Max. R = 80

Design_Codes_Symbol

DESIGN CODES:
EJMA, EN 14917,
ASME or AD2000