Thin-walled steel pipes from Ø48 to Ø813 mm

Alvenius FlowMax® pipe is spirally welded from Ø76 mm with unique pressure-equipment classed steel material. The pipes can be made
thin-walled but yet strong, while the spiral welding ensures that the pipes retain their shape.

  • Material

    Pressure-vessel-class steel

  • Dimensions, spiral-welded

    Ø76 – Ø813 mm, stepless

  • Dimensions, longitudinal welded

    Ø48 – Ø60 mm

  • Quality standard

    EN 10217-1, ISO 9001 (quality), ISO 14001 (enviroment) Manufacturing standard, pressure vessel directive PED 2014/68/EU

  • Wall thickness

    1,2 – 7,0 mm

  • Material

    Yield strength 240-650 MPa

  • Pipe length

    Up to 12 metres

  • Pressure class

    Up to 100 bar, depending on coupling type

  • Coupling system

    K10 Shouldered (metric standard) quick-coupling Grooved (ISO-standard) quick-coupling Plain-ended pipe for welding Flanged ANSI or DIN

  • Weight saving

    30 – 50 % compared with traditional pipe

Alvenius CG/RG 60mm-323mm (2”-12”)

CG/RG quick coupling system to ISO standard, normally for pressures up to 80 bar. The system is often used for permanent installations with sizes up to 323 mm (12"). 

Normally, thick-walled rings with a machined groove are used, welded to the ends of the pipes. This is why the system is called cut groove (CG). For low pressures, we also offer a roll groove (RG) system, with a directly groove rolled at the ends of each pipe.

Alvenius CG/RG 60mm-323mm (2”-12”)

  • Properties

    • Sizes 60–323 mm
    • Rigid or flexible couplings
    • Wide selection of rubber gaskets depending on the application and the type of media to be transported in the pipe
    • Self-sealing gasket. Also works in vacuums under certain conditions.
    • Deflection up to 2.5°
    • Unaffected by vibrations
    • Tolerates axial movement, such as due to heat expansion, thanks to axial play in the coupling

Alvenius AGS 355mm-610mm (14”-24”)

Alvenius AGS 355mm-610mm (14”-24”)

Alvenius AGS is a quick coupling system for larger sizes,
355 mm–610 mm (14"–24"). The system is normally available for pressures up to 25 bar.

The AGS system is similar to the CG/RG system, but with the difference that the pipes have a greater wall thickness and the groove is further in from the end of the pipe.

  • Properties

    • Sizes Ø355–610 mm
    • Rigid or flexible couplings
    • Wide selection of rubber gaskets depending on the application and the type of media to be transported in the pipe
    • Self-sealing gasket. Also works in vacuums under certain conditions.
    • Working temperature -35° to +110°
    • Some play in the joints (flexible couplings)
    • Unaffected by vibrations
    • Absorbs axial movements in the pipe system thanks to axial play in the coupling

Alvenius K10 48mm-318mm (1 1/2”-12”)

Alvenius K10 is a quick coupling system with a "shoulder" at each end of the pipe. The system is available in standard metric sizes for pressures up to 40 bar, depending on size.

The K10 is a felxible system with deflection up to 4°. The Alvenius K10 system is widely used within mining and tunnelling

Alvenius K10 48mm-318mm (1 1/2”-12”)

  • Properties

    • Sizes Ø48–318 mm.
    • Self-sealing gasket. Also works in vacuums under certain conditions.
    • EPDM rubber gasket as standard, which is also resistant to chemicals.
    • Working temperature -35° to +110°.
    • Optional nitrile or silicone gasket for long-term contact with petroleum products.
    • Deflection up to 4°.
    • Unaffected by vibrations.
    • Absorbs axial movements in the pipe system thanks to axial play in the coupling.

Alvenius special pipes

Alvenius special pipes

If you don't find what you are looking for in our standard range, we custom make solutions for your special application. The common denominators for special applications are special requirements for dimensions, performance, weight and strength. 

Examples of pipes for special applications are powder capsules for the steel industry, pipes for vacuum waste collectors and mooring pole for port facilities.