Type A1
Rubber Expansion Joint

Type A1 - Rubber Expansion Joint | 3D view
Note | Type A1 - Rubber Expansion Joint | 3D view
Type A1 - Rubber Expansion Joint | dimensional sketch
Note | Type A1 - Rubber Expansion Joint | dimensional sketch

Rubber Expansion Joints
by coupling type

Standard model single-arch rubber expansion joint composed of single- or multi-layer rubber bellow, for mounting with swivel flanges directly on the pipeline.

Available in various rubber qualities depeding on the flow media, custom install lengths and different standards and meterials for the flanges. Optional support ring for vacuum applications is available on request.

For detailed technical specifications on Type A1 rubber expansion joints please check the following table and documents or contact us.

Features

  • high flexiblility, universal movements
  • simple installation with flanges
  • various rubber qualities
  • suitable for vacuum applications

Technical Specifications

Type Series Range/Size Pressure
Class
Movements
Axial [+/-mm] Lateral [+/-mm] Angular [+/-deg]
Rubber
A1 DN20-DN2000 up to PN16 yes * yes * yes *
* acc. to individual design or standard program
** other sizes and/or pressure class on request
Type Rubber
Series A1
Couplings flanges
Size/Range DN20-DN2000
Pressure up to PN16
Axial yes *
Lateral yes *
Angular yes *
* acc. to individual design or standard program
** other pressure class DIN/ANSI on request

Rubber Quality Chart

Rubber
Quality
Mark Color
Common
Applications
Max. Allowed
Temperature
NEOPRENE grey
water 70°C
EPDM red
warm / industrial water 90°C
EPDM-SP red
hot water / heating systems 110°C
NITRIL yellow
oils 80°C
NITRIL white
food grade applications 80°C
HYPALON green
acids 80°C
BUTYL blue
potable water 90°C
VITON purple
strong acids 90°C
* for proper identification of the required rubber quality, please check our complete Rubber Compatibility Chart in Download section.

Standard Program

Nominal
Diameter
[mm]
Overall
Length
[mm]
Movements
Axial
[+/-mm]
Lateral
[+/-mm]
Angular
[+/-deg]
20 130 30 30 35
25 130 30 30 35
32 130 30 30 35
40 130 30 30 35
50 130 30 30 35
65 130 30 30 30
80 130 30 30 35
100 130 30 30 25
125 130 30 30 25
150 130 30 30 20
200 130 30 30 15
250 130 30 30 10
300 130 30 30 10
350 130 30 30 10
* for sizes above DN350 please ask for individual quotation
** other lengths available on request.
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