Axial Expansion Joints

Our axial expansion joints are produced with the highest quality standards. They are made of 100% high-quality steel and are available in many different sizes. Use the filter navigation to find the expansion joint that is right for you.

Axial steel expansion joint with flanges - Typ BOA 7120 000

DN: 150
PN: 40
Overall Length [mm]: 201
Axial Movement (complete) [mm]: 20
Lateral Movement (complete) [mm]: 2
Universal Vibration (complete): 0.2

51420309/40

Axial steel expansion joint with flangesTyp BOA 7120 000 Axial steel expansion joint with flanges for axial or lateral movement capacity or for removing vibrations. Materials: Bellows: Stainless steel, material type 1.4571 Weld ends: mild steel Flanges: carbon steel The expansion joints (up to PN 16) are tested by the DVGW to DIN 30 681 and are approved for gas plants. Marking with the relevant DIN DVGW Reg. No. possible for an additional charge. We reserve the right to make dimensional and design changes. Larger nominal widths on request.

Variants from €212.00*

€967.00*

Details

Axial steel expansion joint with weld ends - Torsion protection and stroke limitation - Typ BOA ZA

DN: 50
PN: 16
Overall Length [mm]: 260
Axial Movement (complete) [mm]: 45

6000037198/16

Axial steel expansion joint with weld ends - Torsion protection and stroke limitationTyp BOA ZA Axial steel expansion joint, suitable for Δax without prestressing during installation, with weld ends, torsion protection and stroke limitation. Materials: Bellows: 1.4571 Weld ends: carbon steel Inner sleeve and protective tube: Stainless steel max. temperature 300 °C 1000 LW / SL=1 (5000 LW / SL1/-25 mm) We reserve the right to make dimensional and design changes. Larger nominal widths on request.

Variants from €119.00*

€197.00*

Details

Vibration absorber with loose flanges, supported external restraint (< 120°C) - Typ BOA Epsilon-C

DN: 250
PN: 6
Overall Length [mm]: 130

K-0002060/6

Vibration absorber with loose flanges, supported external restraint (< 120°C)Typ BOA EPSILON-C Vibration absorber with loose flanges and rim for absorbing vibrations in circular plane, with sound insulating supported external restraint. Maximum operating temperature: 120°C Materials Multi-layer bellows and rim: 1.4571 Flanges: Carbon steel, zinc-plated Restraint: Carbon steel, zinc-plated Absorber discs: Elastomer operating temperature:

Variants from €491.00*

€1,387.00*

Details

Low Pressure Expansion Joints with flanges - Typ BOA EXF

DN: 50
PN: 2
Overall Length [mm]: 220
Axial Movement (complete) [mm]: 80
Lateral Movement (complete) [mm]: 64

K-0009238/2

Low Pressure Expansion Joints with flangesTyp BOA EXF Low pressure - Expansion Joint with flanges for axial or lateral movement capacity. Materials: Bellows: Stainless steel, material type 1.4571 Flanges: 1.4541 Designed for operating pressures of up to 2.5 bar at 20 °C. When considering the reduction factors operating pressures of 1.6 bar at 300 °C or 1.4 bar at 500 °C operating temperature. We reserve the right to make dimensional and design changes. Larger nominal widths on request.

€312.00*

Details

Axial steel expansion joint with loose flanges - Typ BOA 7150 000

DN: 150
PN: 10
Overall Length [mm]: 240
Axial Movement (complete) [mm]: 76
Lateral Movement (complete) [mm]: 28

51422068/10

Axial steel expansion joint with loose flangesTyp BOA 7150 000 Axial steel expansion joint with loose flanges and rim for axial or lateral movement capacity or for removing vibrations. The expansion joints are supplied with suitable gaskets. Materials: Bellows: Stainless steel, Material type 1.4571 Rims: Material type 1.4571 Flanges: Carbon steel, zinc-plated The expansion joints are tested by the DVGW to DIN 30 681 and are approved for gas plants. Marking with the relevant DIN DVGW Reg. No. possible for an additional charge. We reserve the right to make dimensional and design changes. Larger nominal widths on request.

Variants from €167.00*

€873.00*

Details

Axial steel expansion joint with Mannesmann Pressfitting - Typ BOA 7179 00X-ME

DN: 54
PN: 16
Overall Length [mm]: 559
Axial Movement (complete) [mm]: 72

51403178/16

Axial steel expansion joint with Mannesmann PressfittingTyp BOA 7179 00X-ME (Sanitary Systems) Axial steel expansion joint, suitable for Δax without prestressing during installation, with weld ends and Mannesmann press fitting connector, inner sleeve and protective tube. Materials: Bellows: Stainless steel, material type 1.4571 Weld ends: 1.4571 Inner sleeve and protective tube: 1.4571 or 1.4404 Fitting: 1.4404 Allowable operating conditions: max. operating pressure 16 bar max. temperature 85 °C (to DIN 1988) or 110 °C We reserve the right to make dimensional and design changes. Larger nominal widths on request.

Variants from €326.00*

€871.00*

Details

Axial steel expansion joint - Inner Sleeve and Protective Tube - weld ends - Typ BOA 7119 00X

DN: 25
PN: 25
Overall Length [mm]: 380
Axial Movement (complete) [mm]: 50

51420885/25

Axial steel expansion joint - Inner Sleeve and Protective Tube - weld endsTyp BOA 7119 00X Axial steel expansion joint, suitable for Δax without prestressing during installation, with weld ends, inner sleeve and protective tube. Materials: Bellows: Stainless steel, material type 1.4571 Weld ends: mild steel Inner sleeve and protective tube: carbon steel The expansion joints (up to PN 16) are tested by the DVGW to DIN 30 681 and are approved for gas plants. Marking with the relevant DIN DVGW Reg. No. possible for an additional charge. We reserve the right to make dimensional and design changes. Larger nominal widths on request.

Variants from €133.00*

€218.00*

Details

Axial steel expansion joint with threaded sockets made of malleable cast iron with protective tube - Typ BOA 7162 00S-Ti

DN: 25
PN: 10
Overall Length [mm]: 152
Axial Movement (complete) [mm]: 26
Lateral Movement (complete) [mm]: 16
Universal Vibration (complete): 1.1

51424613/10

Axial steel expansion joint with threaded sockets made of malleable cast iron with protective tubeTyp BOA 7162 00S-Ti (Malleable cast iron) Axial steel expansion joint with threaded sockets suitable forΔax without prestressing or lateral movement capacity or for removing vibrations. Materials: Bellows: Stainless steel 1.4571 Spacer sheets: Stainless steel 1.4301 Threaded coupling: Malleable cast iron, zinc-plated Gasket: Klingersil C-4400 External sleeve: carbon steel, zinc-plated, soft soldered Maximum operating temperature: 200°C The expansion joints are tested by the DVGW to DIN 30 681 and are approved for gas plants. We reserve the right to make dimensional and design changes. Larger nominal widths on request.

Variants from €159.00*

€165.00*

Details

Axial steel expansion joint - Inner Sleeve and Protective Tube - flanges - Typ BOA 7129 00X

DN: 50
PN: 25
Overall Length [mm]: 470
Axial Movement (complete) [mm]: 60

51421236/25

Axial steel expansion joint - Inner Sleeve and Protective Tube - flangesTyp BOA 7129 00X Axial steel expansion joint, suitable forΔax without prestressing during installation, with flanges, inner sleeve and protective tube. Materials: Bellows: Stainless steel, material type 1.4571 Weld ends: carbon steel Flanges: carbon steel Inner sleeve and protective tube: carbon steel The expansion joints (up to PN 16) are tested by the DVGW to DIN 30 681 and are approved for gas plants. Marking with the relevant DIN DVGW Reg. No. possible for an additional charge. We reserve the right to make dimensional and design changes. Larger nominal widths on request.

Variants from €256.00*

€553.00*

Details

Vibration absorber with loose flanges - Typ BOA Alpha-C

DN: 40
PN: 6
Overall Length [mm]: 130

6000017300/6

Vibration absorber with loose flangesTyp BOA ALPHA-C Vibration absorber with loose flanges and rim for absorbing all-round vibrations. Materials Multi-layer bellows and rim: 1.4571 Flanges: Carbon steel, zinc-plated We reserve the right to make dimensional and design changes. Larger nominal widths on request.

€261.00*

Details

Axial steel expansion joint with threaded sockets made of gunmetal - Typ BOA 7160 00S-Ri

DN: 40
PN: 10
Overall Length [mm]: 177
Axial Movement (complete) [mm]: 29
Lateral Movement (complete) [mm]: 17
Universal Vibration (complete): 1.3

51424565/10

Axial steel expansion joint with threaded sockets made of gunmetalTyp BOA 7160 00S-Ri (Gunmetal) Axial steel expansion joint with threaded sockets suitable forΔax without prestressing or lateral movement capacity or for removing vibrations, suitable for drinking water. Materials: Bellows: Stainless steel 1.4571 Spacer sheets: Stainless steel 1.4301 Threaded coupling: Gunmetal 2.1096 Gasket: Klingersil C-4400 We reserve the right to make dimensional and design changes. Larger nominal widths on request.

Variants from €90.00*

€205.00*

Details

Vibration absorber with loose flanges, supported external restraint (> 120°C) - Typ BOA Epsilon-C > than 120°C

DN: 150
PN: 16
Overall Length [mm]: 130

6000013638/16

Vibration absorber with loose flanges, supported external restraint (> 120°C)Typ BOA EPSILON-C Vibration absorber with loose flanges and rim for absorbing vibrations in circular plane, with sound insulating supported external restraint. operating temperature: >120°C Materials Multi-layer bellows and rim: 1.4571 Flanges: Carbon steel, zinc-plated Restraint: Carbon steel, zinc-plated Absorber discs: Carbon steel, zinc-plated (above 120 °C steel cushions) We reserve the right to make dimensional and design changes. Larger nominal widths on request.

Variants from €583.00*

€1,266.00*

Details

Axial steel expansion joint with weld ends - Typ BOA 7110 000

DN: 65
PN: 6
Overall Length [mm]: 246
Axial Movement (complete) [mm]: 70
Lateral Movement (complete) [mm]: 38
Universal Vibration (complete): 2.6

51420114/6

Axial steel expansion joint with weld endsTyp BOA 7110 000 Axial steel expansion joint with weld ends for axial or lateral movement capacity or for removing vibrations. Materials: Bellows: Stainless steel, material type 1.4571 Weld ends: mild steel The expansion joints (up to PN 16) are tested by the DVGW to DIN 30 681 and are approved for gas plants. Marking with the relevant DIN DVGW Reg. No. possible for an additional charge. We reserve the right to make dimensional and design changes. Larger nominal widths on request.

Variants from €96.00*

€316.00*

Details

Axial steel expansion joint with threaded sockets made of malleable cast iron - Typ BOA 7160 00S-Ti

DN: 15
PN: 10
Overall Length [mm]: 109
Axial Movement (complete) [mm]: 16
Lateral Movement (complete) [mm]: 9
Universal Vibration (complete): 0.7

51424581/10

Axial steel expansion joint with threaded sockets made of malleable cast ironTyp BOA 7160 00S-Ti (Malleable cast iron) Axial steel expansion joint with threaded sockets suitable forΔax without prestressing or lateral movement capacity or for removing vibrations. Materials: Bellows: Stainless steel 1.4571 Spacer sheets: Stainless steel 1.4301 Threaded coupling: Malleable cast iron, zinc-plated Gasket: Klingersil C-4400 Maximum operating temperature: 300 °C The expansion joints are tested by the DVGW to DIN 30 681 and are approved for gas plants. We reserve the right to make dimensional and design changes. Larger nominal widths on request.

€76.00*

Details

Axial steel expansion joint - Inner Sleeve and Protective Tube - flanges - Typ BOA 7127 00X

DN: 200
PN: 16
Overall Length [mm]: 700
Axial Movement (complete) [mm]: 84

1191466/16

Axial steel expansion joint - Inner Sleeve and Protective Tube - flangesTyp BOA 7127 00X Axial steel expansion joint, suitable forΔax without prestressing during installation, with flanges, inner sleeve and protective tube. Materials: Bellows: Stainless steel, material type 1.4571 Weld ends: carbon steel Flanges: carbon steel Inner sleeve and protective tube: carbon steel The expansion joints (up to PN 16) are tested by the DVGW to DIN 30 681 and are approved for gas plants. Marking with the relevant DIN DVGW Reg. No. possible for an additional charge. We reserve the right to make dimensional and design changes. Larger nominal widths on request.

Variants from €2,194.00*

€3,072.00*

Details

Axial steel expansion joint - Inner Sleeve and Protective Tube - weld ends - Typ BOA 7117 00X

DN: 200
PN: 16
Overall Length [mm]: 570
Axial Movement (complete) [mm]: 84

1191351/16

Axial steel expansion joint - Inner Sleeve and Protective Tube - weld endsTyp BOA 7117 00X Axial steel expansion joint, suitable for Δax without prestressing during installation, with weld ends, inner sleeve and protective tube. Materials: Bellows: Stainless steel, material type 1.4571 Weld ends: mild steel Inner sleeve and protective tube: carbon steel The expansion joints (up to PN 16) are tested by the DVGW to DIN 30 681 and are approved for gas plants. Marking with the relevant DIN DVGW Reg. No. possible for an additional charge. We reserve the right to make dimensional and design changes. Larger nominal widths on request.

Variants from €1,350.00*

€2,042.00*

Details

Axial steel expansion joint with weld ends - completely made of stainless steel - Typ BOA 7110 00S-KW

DN: 32
PN: 10
Overall Length [mm]: 186
Axial Movement (complete) [mm]: 40
Lateral Movement (complete) [mm]: 30
Universal Vibration (complete): 2.2

51422145/10

Axial steel expansion joint with weld ends - completely made of stainless steelTyp BOA 7110 00S-KW Axial steel expansion joint with weld ends for axial or lateral movement capacity or for removing vibrations. Materials: Bellows: Stainless steel, material type 1.4571 Weld ends: 1.4571 The expansion joints (up to PN 16) are tested by the DVGW to DIN 30 681 and are approved for gas plants. Marking with the relevant DIN DVGW Reg. No. possible for an additional charge. We reserve the right to make dimensional and design changes. Larger nominal widths on request.

Variants from €171.00*

€395.00*

Details

Low Pressure Expansion Joints with weld ends - Typ BOA EXW

DN: 65
PN: 2
Overall Length [mm]: 300
Axial Movement (complete) [mm]: 94
Lateral Movement (complete) [mm]: 46

K-0009385/2

Low Pressure Expansion Joints with weld endsTyp BOA EXW Low pressure - Expansion Joint with weld ends for axial or lateral movement capacity. Materials: Bellows: Stainless steel, material type 1.4571 Weld ends: 1.4541 Designed for operating pressures of up to 2.5 bar at 20 °C. When considering the reduction factors operating pressures of 1.6 bar at 300 °C or 1.4 bar at 500 °C operating temperature. We reserve the right to make dimensional and design changes. Larger nominal widths on request.

Variants from €295.00*

€317.00*

Details

Axial steel expansion joint with flanges - completely made of stainless steel - Typ BOA 7120 00S-KW

Universial Vibration: 1.4
DN: 32
PN: 16
Overall Length [mm]: 180
Axial Movement (complete) [mm]: 34
Lateral Movement (complete) [mm]: 20
Universal Vibration (complete): 1.4

51422921/16

Axial steel expansion joint with flanges - completely made of stainless steelTyp BOA 7120 00S-KW Axial steel expansion joint with flanges for axial or lateral movement capacity or for removing vibrations. Materials: Bellows: Stainless steel, material type 1.4571 Flanges: 1.4571 The expansion joints (up to PN 16) are tested by the DVGW to DIN 30 681 and are approved for gas plants. Marking with the relevant DIN DVGW Reg. No. possible for an additional charge. We reserve the right to make dimensional and design changes. Larger nominal widths on request.

Variants from €567.00*

€998.00*

Details

Axial steel expansion joint with threaded sockets made of gunmetal with protective tube - Typ BOA 7162 00S-Ri

DN: 15
PN: 10
Overall Length [mm]: 99
Axial Movement (complete) [mm]: 10
Lateral Movement (complete) [mm]: 6
Universal Vibration (complete): 0.5

51424605/10

Axial steel expansion joint with threaded sockets made of gunmetal with protective tubeTyp BOA 7162 00S-Ri (Gunmetal) Axial steel expansion joint with threaded sockets suitable forΔax without prestressing, suitable for drinking water. Materials: Bellows: Stainless steel 1.4571 Spacer sheets: Stainless steel 1.4301 Threaded coupling: Malleable cast iron, zinc-plated Gasket: Klingersil C-4400 External sleeve: carbon steel, zinc-plated, soft soldered Maximum operating temperature: 200°C We reserve the right to make dimensional and design changes. Larger nominal widths on request.

€148.00*

Details

Axial steel expansion joint with Mannesmann Pressfitting - Typ BOA 7179 00X-MS

DN: 54
PN: 16
Overall Length [mm]: 559
Axial Movement (complete) [mm]: 72

51422116/16

Axial steel expansion joint with Mannesmann PressfittingTyp BOA 7179 00X-MS (Heating Sytems) Axial steel expansion joint, suitable for Δax without prestressing during installation, with weld ends and Mannesmann press fitting connector, inner sleeve and protective tube. Materials: Bellows: Stainless steel, material type 1.4571 Weld ends: carbon steel Inner sleeve and protective tube: carbon steel Fitting: carbon steel Allowable operating conditions: max. operating pressure 16 bar max. temperature 110 °C We reserve the right to make dimensional and design changes. Larger nominal widths on request.

Variants from €165.00*

€302.00*

Details

Axial steel expansion joint with Thread - Torsion protection and stroke limitation - Typ BOA ZAN

DN: 15
PN: 16
Overall Length [mm]: 308
Axial Movement (complete) [mm]: 45

6000062034/16

Axial steel expansion joint with Thread - Torsion protection and stroke limitationTyp BOA ZAN Axial steel expansion joint, suitable for Δax without prestressing during installation, with thread, torsion protection and stroke limitation. Materials: Bellows: 1.4571 Thread: Stainless steel Inner sleeve and protective tube: Stainless steel max. temperature 300 °C 1000 LW / SL=1 (5000 LW / SL1/-25 mm) We reserve the right to make dimensional and design changes. Larger nominal widths on request.

€178.00*

Details