Type B1
Rubber Expansion Joint

Standard model single-arch rubber expansion joint composed of single-layer rubber bellow, for mounting with external 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 B1 rubber expansion joints please check the following table and documents or contact us.

Properties

  • high flexiblility, universal movements
  • installation wih external threads
  • various rubber qualities
Type B1 (external thread) - Rubber Expansion Joint | 3D view
Type B1 (external thread) - Rubber Expansion Joint | 3D view
Type B1 (external thread) - Rubber Expansion Joint | dimensional sketch
Type B1 (external thread) - Rubber Expansion Joint | dimensional sketch

Technical Specifications

TypeSeriesSizePressureMovements

RangeClassAxial [+/mm]Lateral [+/mm]Angular [+/deg]
RubberB1DN20-DN50PN16yes *yes *yes *
TypeRubber
SeriesB1
Couplingsexternal threads
Size / RangeDN20-DN50
PressurePN16
Axialyes *
Lateralyes *
Angularyes *

* acc. to individual design or standard program

Rubber Quality Chart

RubberMarkColorCommonMax. Allowed
Quality
ApplicationsTemperature
NEOPRENEgreywater70 °C
EPDMredwarm / industrial water90 °C
EPDM-SPredhot water / heating systems110 °C
NITRILyellowoils80 °C
NITRILwhitefood grade applications80 °C
HYPALONgreenacids80 °C
BUTYLbluepotable water90 °C
VITONpurplestrong acids90 °C

* for proper identification of the required rubber quality, please check our complete Rubber Compatibility Chart

Standard Program

Nominal
Diameter

Overall
Length


SW1


SW2


Movements

[mm]

[inch]

[mm]

[mm]

[mm]

Axial[+/-mm]      

Lateral[+/-mm]

Angular[+/-deg]

20

3/4"

228 

36

80

30

30

30

25

1"

236 

40

80

30

30

30

32

1 1/4"

246 

48

80

30

30

30

40

1 1/2"

250

53

90

30

30

30

50

2"

256 

66

110

30

30

30