Expansion joints and hoses
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MANUFACTURER OF EXPANSION JOINTS AND HOSES Flexible solutions for your pipe system Corrugated expansion joints | Lens expansion joints | Rubber expansion joints | Fabric expansion joints | Special expansion joints and plant engineering | Hoses

HKS | Manufacturer of expansion joints and hoses CORRUGATED EXPANSION JOINTS 12 Technical information 13 Model variants 14 Metal bellows 16 Connection Types 18 Tie rods 20 Inner sleeves and protective pipes 22 Installation in pipe system 28 Type designation 30 Type AN B-B with swivel flanges 36 Type AN B-B for low pressure 40 Type AN F-F with fixed flanges 46 Type AN V-V with welding neck flanges 54 Type AN R-R with welding ends 62 Type AN R-R for low pressure 66 Type AM B-B with swivel flanges 70 Type AM B-B for low pressure 74 Type AM R-R with welding ends 78 Type AM R-R for low pressure...

Manufacturer of expansion joints and hoses | HKS Type RN F-F with fixed flanges Type RN R-R with welding ends Type RM B-B with swivel flanges Type RM F-F with fixed flanges Type RM R-R with welding ends Type LM F-F with fixed flanges Type LM R-R with welding ends Angular expansion joint Type WN F-F with fixed flanges Type WN R-R with welding ends Type KN F-F with fixed flanges Type KN R-R with welding ends LENS EXPANSION JOINTS 150 Technical information Model variants Round lens expansion joints Rectangular lens expansion joints Connection Types Inner sleeves Installation in pipe system...

HKS | Manufacturer of expansion joints and hoses SPECIAL EXPANSION JOINTS AND PLANT ENGINEERING 186 Technical information Pipe components Special expansion joints RUBBER EXPANSION JOINTS 190 Technical information Model variants Rubber bellows Connection Types Vacuum support rings PTFE lining Inner sleeves External protection systems Rubber expansion joint Type 1

Manufacturer of expansion joints and hoses | HKS Rubber expansion joint Type 2 216 Model CR Rubber expansion joint Type 3 FABRIC EXPANSION JOINTS 232 Technical information Model variants Connection Types Accessories Fabric expansion joint

HKS | Manufacturer of expansion joints and hoses Technical information Application options Documentation Interlocked metal hose Type B normal corrugation Type C tightly corrugated / highly flexible Hose connection Types Screw fittings Pipe and threaded nipple

Manufacturer of expansion joints and hoses | HKS Basic units Conversion tables Coefficients of thermal expansion Steam table Flange dimensions ASME B16.5 lap joint flanges ASME B16.5 welding neck flanges Mechanical properties Corrugated expansion joints Lens expansion joints Rubber expansion joints Fabric expansion joints

HKS | Manufacturer of expansion joints and hoses

Flexible solutions for your pipe system! HKS is one of Europe’s leading manufacturers of expansion joints and hoses. The product range of the group of companies covers a wide range from simple standard expansion joints to individually tailored special expansion joints. HKS expansion joints and hoses are used in over 50 countries worldwide. HKS is excellently positioned in the tension triangle of quality – performance – delivery date: Meeting the highest quality standards goes hand in hand with at- tractive, competitive prices as well as short-term delivery dates made possible by extensive...

HKS | Manufacturer of expansion joints and hoses Stable business relations through quality Quality management has been at the centre of all operations since foundation of the company in 1981. It is the basis for a high level of customer satisfaction, for safety and for environmental protection. All organisational units of HKS have been certified in line with EN ISO 9001. Our two production sites are accredited welding fabricators according to ISO 3834-2. Regular customer audits repeatedly confirm the success of our quality management. Approvals > Current welding certification (TOV HP0) >...

Manufacturer of expansion joints and hoses | HKS

HKS | Corrugated expansion joints Corrugated expansion joints HKS designs and manufactures corrugated expansion joints from the simplest standard expansion joints to highly complex expansion joints which are designed especially on the basis of individual customer requirements. Corrugated expansion joints are single or multi-layered stainless steel expansion joints with a high level of expansion absorption and a low spring rate. They are used as flexible pipe connections in mechanical engineering, power unit and pipeline construction, in district heating and exhaust pipes as well as in...

Corrugated expansion joints | HKS Model variants Axial expansion joint (example Type AN B-B) › With swivel flanges, fixed flanges or welding ends › Nominal diameters DN 20 – DN 2800 1) › Pressure stages DN 1 – DN 40 2) › Low adjustment force rates and high movement absorption Lateral expansion joint (e.g. Type RN B-B) › With swivel flanges, fixed flanges or welding ends › Nominal diameters DN 20 – DN 2800 1) › Pressure stages DN 1 – DN 40 2) › With tie rod systems (tension rods or joints) › With single joint movable on one side › With tension rod or cardan joint moveable in all directions ›...

HKS | Corrugated expansion joints The bellows of an expansion joint The metal bellows as a fl exible basic elements has a high level of flexibility due to its continuous convolution. A high level of pressure resistance also has to be ensured. The bellows can be single or multi-layered. Wall thickness, number of layers, convolution geometry and number of convolutions are the adjustment parameters for designing an expansion joint (movement absorption, spring stiffness, convolution stability and column instability). The multiple walls divide the pressure load on the overall wall into several...

Corrugated expansion joints | HKS A temperature of 20 °C, the nominal pressure, the movement absorption and service life of 1000 stress cycles are normally used as a standardised basis for calculating the metal bellows of an expansion joint. A stress cycle is a complete, repeating oscillation of the bellows (zero position - max. positive deflection - zero position - max. negative deflection - zero position). Corrosion, high frequency vibrations, resonances, strong temperature changes and pressure surges are additional influencing factors. good resistance against aggressive media, high...