Type B2
Rubber Expansion Joint

Type B2 (internal thread) - Rubber Expansion Joint | 3D view
Note | Type B2 (internal thread) - Rubber Expansion Joint | 3D view
Type B2 (internal thread) - Rubber Expansion Joint | dimensional sketch
Note | Type B2 (internal thread) - Rubber Expansion Joint | dimensional sketch

Rubber Expansion Joints
by coupling type

Standard model single-arch rubber expansion joint composed of single-layer rubber bellow, for mounting with internal threads on the pipeline.

Available in various rubber qualities depeding on the flow media, different materials for couplings and standard install lengths. Double-arch constructions are available on request.

For detailed technical specifications on Type B2 rubber expansion joints please check the following table and documents or contact us.

Features

  • high flexiblility, universal movements
  • installation wih internal threads
  • various rubber qualities

Technical Specifications

Type Series Size
Range
Pressure
Class
Movements
Axial [+/-mm] Lateral [+/-mm] Angular [+/-deg]
Rubber
B2 DN20-DN50 PN16 yes * yes * yes *
* acc. to individual design or standard program
Type Rubber
Series B2
Couplings internal threads
Size/Range DN20-DN50
Pressure PN16
Axial yes *
Lateral yes *
Angular yes *
* acc. to individual design or standard program

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

Standard Program

Nominal
Diameter
Overall
Length
[mm]
SW1
[mm]
SW2
[mm]
Movements
[mm]
[inch]
Axial
[+/-mm]
Lateral
[+/-mm]
Angular
[+/-deg]
20 3/4" 186 36 80 30 30 30
25 1" 192 40 80 30 30 30
32 1 1/4" 196 48 80 30 30 30
40 1 1/2" 202 53 90 30 30 30
50 2" 215 66 110 30 30 30
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