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Megapress S


Press connector system with press connectors made of non-​alloy steel 1.0308 for black, galvanised, industrially painted and powder-​coated steel pipes in acc. with EN 10255, EN 10220 / EN 10216‑1 and EN 10220 / EN 10217‑1.

Press connectors
Megapress S press connectors are made of steel 1.0308 with an external galvanic zinc-​nickel coating.
All sizes with SC‑Contur – accidently unpressed connections become visible during filling the system. The SC -Contur fulfils the requirements of 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.

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    White dot, FKM, black rectangle with symbol »Not for potable water installations«

    Megapress S

    Sealing elements
    FKM, matt black

    D⅜ (DN10); D½ (DN15); D¾ (DN20); D1 (DN25); D1¼ (DN32); D1½ (DN40); D2 (DN50);
    D2½ (DN65); D3 (DN80); D4 (DN100)
    D=External pipe diameter in acc. with EN 10255

    Areas of application
    Industrial and plant engineering
    Local and district heating systems in acc. with AGFW FW 524 (after entry into the building, ≤ DN50)
    Closed cooling and heating systems
    Compressed air systems
    Fire extinguishing and sprinkler systems
    Systems for technical gases (request required)

    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
    • Operating temperature: -5 °C up to +140 °C
    • Operating pressure max. 1.6 MPa (PN 16)

    Megapress S is suitable for
    • Fire extinguishing and sprinkler systems (the required minimum and maximum wall thickness have to be observed)
    • Pipes according to EN 10220 / EN 10216‑1 / EN 10217‑1:
      Pipe series 1: D⅜–D4
    The Megapress S system is not suitable for
    • combustible gases in acc. with DVGW worksheet G 260
    • Potable water installations and other open systems

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

    Megapress S components should only be used with components that belong to the system!

    Protection against external corrosion
    Thanks to a zinc-​nickel coating the press connectors are optimally protected against corrosion – e.g. when condensation water forms in cooling systems.
    The pipe being use should be protected with suitable corrosion prevention measures - observe manufacturer's information.
    Pipes and connectors should be insulated in the same way in acc. with the general rules of engineering.

    Use of press tools
    For manufacturing Megapress S XL press connections the Pressgun Press Booster is required (product group system 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:
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