About us

The Witzenmann Group is one of the world's leading manufacturers of flexible metal elements including metal hoses, expansion joints, metal bellows and hanger and supports. In 2017, over 4,300 employees generated sales in excess of 614 million euros.
Boasting the world's broadest range of products in the industry, Witzenmann offers engineered solutions designed to decouple vibrations, compensate for thermal movement, aid installation and convey a wide range media. As a development partner of customers within the industrial and many other markets, Witzenmann has an extensive portfolio of machinery / tooling, prototype production as well as comprehensive range testing equipment.
As an international group with 24 companies in Europe, America and Asia, Witzenmann is renowned for high quality in the key markets worldwide.

Products and services

HYDRA® expansion joints can be provided as axial, lateral or angular expansion joints from DN 15 up to DN 12.000 in custom and project specific designs.

The HYDRA® portfolio includes spring hangers and supports, hinged spring supports, constant hangers, constant supports, pipe clamps and accessories. Thus, depending on the choice of hanger, a balanced load chain can be formed, and this can also surround the pipeline.

HYDRA® corrugated bellows provide resistance to pressure whilst remaining their flexibility. One of the many applications include use as a flexible seal around a valve shaft where operating pressures of up to 400 bar can be required.

HYDRA® corrugated hoses are manufactured from DN 6 to DN 300, for operating pressures up to 400 bar and for temperatures from -270 °C to max. 600 °C.

FLEXPERTE - Sizing Software
Flexperte was developed especially for planners and designers for the selection of metal hoses, expansion joints and pipe supports with interface for PDMS, PDS.
Expansion joints

The comprehensive programme combines standard and special designs to provide optimal solutions even for challenging compensation tasks in complex piping systems.

Stainless steel bellows, multi-ply
Standard dimensions from DN 15 to DN 3000
Larger dimensions with diameters of up to 12 m are available as well
Special designs: inner sleeves, special materials,
deviating flange drill templates

Further reading

Valve Bellows

For the strictest requirements concerning pressure resistance, tightness, and axial absorption of motions at high load cycle safety. Optimised valve series' with reduced design height and made of various stainless steel grades are available. Versions made of special materials such as Hastelloy, Inconel, Incoloy are available on stock.

ANSI class up to 2,500
Pressure resistance up to 600 bar
Wall thickness up to 8 x 0.50 mm

Further reading

Pipe supports

The hanger travel changes proportional to the load carried. Spring hangers are less expensive than constant hangers and are used where the vertical motion to be absorbed is moderate (max. 60 mm).
HYDRA constant hangers and constant supports are mobile pipe supports with a constant bearing behaviour. The bearing load stays basically constant over the entire hanger travel.
Bearings Programme: Floating, movable, and fixed bearings for industrial pipeline construction.

Further reading

Witzenmann GmbH
Oestliche Karl-Friedrich-Str. 134
75175 Pforzheim

Phone: +49 7231 5810
Fax: +49 7231 581820
Internet: www.witzenmann.de
E-mail: Send message

Witzenmann India Private Limited
119, Thiruneermalai Road
Chrompet, Chennai 600044

Phone: +91 44 4362 6114
Internet: www.witzenmann.co.in
E-mail: Send message

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