VIBRATION ABSORBER

BOA makes the expansion joint business more efficient, less complicated and clearer for its customers

Immediate price advantages

Significantly reduced list prices of 30% to 60%

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Short delivery times

Over 170 selected products with high availability

Online orders

more product information and technical details

Introduction of a modular building block system

An optimized range for lightning-fast deliveries
More modular structure of the expansion joints rows
Usual expansion joints remain in place

Vibration Absorber & Axial-Expansionjoints

Vibration absorber with loose flanges, supported external restraint

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

DN: 40
PN: 10
Overall Length [mm]: 168
Axial Movement (complete) [mm]: 30
Lateral Movement (complete) [mm]: 16
Universal Vibration (complete): 1.2

51420108/10

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 €99.00*

€130.00*

Details

Axial steel expansion joint with flanges - Typ BOA 7120 000

DN: 40
PN: 16
Overall Length [mm]: 156
Axial Movement (complete) [mm]: 22
Lateral Movement (complete) [mm]: 8
Universal Vibration (complete): 0.6

51420257/16

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 €218.00*

€310.00*

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.

€78.00*

Details

Vibration Absorber & Axial-Expansionjoints

Vibration absorber with loose flanges, supported external restraint

Tip

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

DN: 40
PN: 16
Overall Length [mm]: 130

6000017326/16

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. 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:

From €198.40*

Details

Tip

Vibration absorber with loose flanges - Typ BOA Alpha-C

DN: 40
PN: 16
Overall Length [mm]: 130

6000017301/16

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.

From €190.40*

Details

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

DN: 40
PN: 10
Overall Length [mm]: 122
Axial Movement (complete) [mm]: 30
Lateral Movement (complete) [mm]: 16

51422050/10

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 €172.00*

€258.00*

Details

Vibration Absorber & Axial-Expansionjoints

Vibration absorber with loose flanges, supported external restraint

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

DN: 40
PN: 25
Overall Length [mm]: 260
Axial Movement (complete) [mm]: 29

51420890/25

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 €137.00*

€217.00*

Details

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

DN: 40
PN: 16
Overall Length [mm]: 270
Axial Movement (complete) [mm]: 29

51421199/16

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 €264.00*

€380.00*

Details

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

DN: 12
PN: 16
Overall Length [mm]: 438
Axial Movement (complete) [mm]: 48

51422119/16

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 €170.00*

€202.00*

Details