Megapress S


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 DIN EN 10255 and in acc. with DIN EN 10220 / DIN EN 10216‑1 as well as DIN EN 10220 / DIN 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 – connections, which remain unpressed become visible when the system is filled. 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 a dry leakage test with compressed air or noble gases from 22 hPa–0.3 MPa.

White dot, FKM, black rectangle with symbol »Not for potable water installations«
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 DIN EN 10255

Areas of application
Industrial and plant engineering
Local and district heating installations in accordance with AGFW FW 524 (after entering the building, ≤ DN50)
Closed cooling and heating circuits
Compressed air system
Fire extinguisher and sprinkler units
Systems for technical gases (request required)

Use of the system for application areas and media other than those described here must be agreed with 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 extinguisher and sprinkler units (required minimum wall thickness and maximum wall thickness need to be considered)
  • For pipes in acc. with DIN EN 10220 / DIN EN 10216‑1 / DIN EN 10217‑1:
    raw line 1: D⅜–D4
The Megapress S system is not suitable for
  • combustible gases in acc. with DVGW worksheet G 260
  • Drinking water installations and other open systems

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

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

Protection against external corrosion
Thanks to a high-​quality 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 the production of the Megapress S XL press connection the Pressgun-​Press Booster is required (product group system press tools).
The functional safety of the Viega press connector systems is primarily dependent 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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Megapress S