Technical data

01

Nominal size	DN25 – DN1000
Pressure rating	PN16
Service temperature	−20 °C … +430 °C Manufacturer's declaration. Exact value in the quotation.
Standard	DIN
Connection type	Flanged
Design	TS 10880 DIN 30681
Face-to-face dimension	TS 10880 DIN 30681
End connection standard	EN 1092-1EN 1092-1Flanges — steel flanges, PN designated ISO 7005-1ISO 7005-1Metallic flanges — steel flanges
Test	TS 10880 DIN 30681

The standards listed apply to stocked products. Contact us for other standards.

Material

02

Material options for metal bellows axial expansion joints are listed below.

Bellows	SS316SS316LSS316TiSS304SS321
Flange	SS316SS316LSS316TiSS304SS321
Liner	SS316SS316LSS316TiSS304SS321ST-37
Coating for Fe-C materials	NickelElectrostatic powder coatingWRAS-approved epoxy coating

Features

03

Advantages

Safely absorbs thermal expansion
Dampens vibration and shocks
Compact, lightweight design
Low maintenance
Withstands high temperatures and pressures
Minimal energy loss and pressure drop

Applications

Steam, hot water and thermal oil lines
Power plants and boiler systems
Pipelines exposed to earthquakes and vibration
Chemical and petrochemical plants
Food, pharmaceutical and petrochemical plants
Ship machinery and exhaust systems

Accessories

04

Liner

The liner is an inner sleeve that protects the bellows from the abrasive effect of the medium and from turbulence. It is usually made of the same material as the bellows and keeps the flow from striking the convolutions directly.