STENFLEX - Expansion Joints Technology, Steel and Rubber Expansion Joints, PTFE and Fabric Expansion Joints, Swivel Joints and Industrial Hoses

STENFLEX is one of the world's leading suppliers of flexible pipe connections for construction and engineering applications for more than 40 years. These construction components are used in the power technology, industrial equipment, shipbuilding, gas- and water supply systems and domestic engineering.

STENFLEX develops, manufactures and distributes rubber and steel expansion joints, PTFE and fabric expansion joints, pipe connectors, hoses, swivel joints and rubber-metal bearing components.

Our range of expansion joints and industrial hoses includes products with nominal diameters from 15mm to 3,600mm, nominal pressure ratings up to PN 40 (swivel joints up to max. PN 420) and temperature resistance ratings from -196°C to +900°C suitable for all solid, liquid and gaseous media.

All STENFLEX products stand out for their:

• High level of operational safety and reliability
• High level of movement compensation
• High pressure and temperature resistance
• Tested vacuum stability
• High resistance to various media
• Extremely long service life
• High efficiency

Besides the STENFLEX standard product program, customized compensators are also available on request.

Connections parts (that deviate from DIN) such as ISO, ANSI, VG, SAE standards etc. are also available.

Steel expansion joints

STENFLEX steel expansion joints vary according to the following criteria:

• Type (universal / lateral / angular expansion joints)
• Pipe connection type (flange, welding end or threaded connection)
• Material quality of the bellows (rated to the media)
• Bellows structure (rated to movement, pressure and temperature)

STENFLEX expansion joints are delivered ready for installation in nominal widths DN 15-DN 3400 and for nominal pressure rates up to PN 25. A wide range of materials is used, with temperature resistance from -196° C to +900°C.

Rubber expansion joints

Rubber expansion joints differ according to the following criteria:

• Type (universal / lateral / angular expansion joints)
• Pipe connection type (flange, thread)
• Rubber quality of the bellows (rated to the media)
• Bellows structure (rated to pressure and temperature)

STENFLEX Rubber expansion joints are delivered ready to install in nominal widths DN 20-DN 3600 and for nominal pressure rates up to PN 25. A wide range of materials is used, with temperature resistance up to +110° C.

PTFE-expansion joints

STENFLEX PTFE expansion joints are particularly suitable for aggressive media. PTFE is resistant to almost all chemicals and solvents.

STENFLEX PTFE expansion joints are used in machinery, industrial equipment and piping systems. They are established in the following industry sectors: chemicals, process engineering, foods, beverages, pharmaceuticals, waste and disposal technology as well as IT.

Swivel joints

STENFLEX swivel joints are used in applications involving liquid and gaseous media. The swivel joints can be used as flexible pipe connectors under the most demanding conditions and can withstand extreme temperature and pressure.

STENFLEX swivel joints are highly suitable for absorbing oscillations. Swivel motion can be handled as well as complete rotation at low speed.

Our swivel joints can be used in a wide range of applications, including:

• Loading and swivel arms
• Pipe joint tongs
• Hydraulic fluid supply lines
• Mill and rolling stands
• Sewage treatment aeration tanks
• Filling applications out in the open
• Steel and rolling works

Industrial hoses

STENFLEX hoses provide safe connections whether in process technology, offshore applications, mechanical engineering, building engineering or as part of supply systems.

Functions at a glance:

• Noise and vibration transmission
• High absorption of lateral and angular movement
• Compensate for installation inaccuracies
• Reduce thermal and mechanical tension

Quality and service

The quality management system according to EN ISO 9001:2000 is the basis for the high STENFLEX product and process quality. International certification agencies and independent testing institutes confirm that STENFLEX products meet the highest quality standards. These include TÜV CERT DIN EN 9001:2000, CE conformity, Framatome ANP, ABS Type Approval Program, Bureau Veritas, Det Norske Veritas, DIN DVGW, Germanischer Lloyd, Kiwa and Korean Register of Shipping.

To ensure a high level of safety in the applications, STENFLEX offers pre- and after sales services from planning and consultation to regular inspections after installation. All designs are calculated according to international standards like PED and EJMA.