Revert Revert

Sanpress Inox


Press connector system with press connectors and pipes made of stainless steel material no. 1.4401 an 1.4521 in acc. with DIN EN 10088, DIN EN 10312, DVGW worksheet GW 541, system registration for connectors and pipes in acc. with DVGW worksheet W 534, for potable water installations according to DIN 1988. For dimensionally stable concealed and pre-​wall installations of manifold and riser pipes in Viega component assembly.

Press connectors
All sizes with SC‑Contur – accidently unpressed connections become visible during filling the system. The SC‑Contur is certified and fulfils the requirements of the DVGW worksheet W 534, point 12.14, Connectors with forced leakage.
During leakage tests with water Viega guarantees the identification of unpressed connections in the pressure range 0.1 MPa–0.65 MPa, in the case of dry leakage tests with compressed air or noble gases from 22 hPa–0.3 MPa.

  • Show more
    Green dot on the press connection

    Sealing elements
    EPDM, black (ethylene-​propylene-​diene-​monomer rubber); up to 110 °C; not resistant against hydrocarbon solvent, chlorinated hydrocarbon solvents, turpentine, petrol

    Stainless steel laser-​welded and made of corrosion-​proof stainless steel
    • Material number 1.4401 (AISI 316L) (X5CrNiMo 17‑12-2), with 2.3 % molybdenum for increased durability; yellow plugs
    • Material number 1.4521 (AISI 444) (X2CrMoTi 18‑2), with PRE value 24.1; green plugs

    Standard sizes: d 15; 18; 22; 28; 35; 42; 54
    XL sizes: d 64.0; 76.1; 88.9; 108.0

    Areas of application
    Potable water
    Heating/Radiator connection
    Compressed air systems

    Special applications
    Fire extinguishing systems

    The use of the system for other than those described areas of application and media must be approved by the Viega Service Center.

    Operating conditions
    Potable water installations
    • Operating temperature max. 85 °C
    • Operating pressure max. 1.6 MPa
    Heating installations
    • Operating temperature max. 110 °C
    • Operating pressure max. 1.6 MPa
    Irrelevant of the direction of flow, mixed installations are permitted.

    The press connector system Sanpress Inox is suitable for the creation of potable water installations according to DIN 1988‑200 and EN 806‑2 in consideration of the selection of material in accordance with DIN EN 12502‑1 and DIN 50930‑6. When used for other areas of use and when in doubt about the right selection of material, please contact Viega.
    The system components should be protected against high concentrations of chloride generated by both the medium and by external factors.

    Note – Limitations of use heating systems
    Please observe VDI 2035 and DIN EN 12828!

    Pipe 1.4521 (d 12–108.0)
    • DW-7301BS0375
    Pipe 1.4401 (d 12–108.0)
    • DV-7301BS0411
    System with pipe 1.4401 (d 15–108.0)
    • DW-8501BL0551
    System with pipe 1.4521 (d 15–108.0)
    • DW-8501BS0376

    Use of press tools
    The functional safety of the Viega press connector systems primarily depends on the perfect condition of the press tools and press machines used. For this reason, for the production of press connections we recommend the use of Viega press tools and their regular inspection by authorised service points.

    Technical data
    Press connectors and components are constantly being optimised. If required, the current Z and installation dimensions can be obtained from the download area of the Viega homepage:


Our website uses cookies to help you to get the best out of its content, to improve your experience and to collect statistical data. We do not use cookies to create user profiles. Please refer to our Data protection statement for more information.