Eurotubi Pressfitting System - Technical Guide ... - Damstahl

Conditions of use for sprinklers
- Maximum pressure for diameters up to 76.1 mm: 16 bar
- Maximum pressure for diameters 88.9 and 108 mm: 12.5 bar
Certification
For the sprinkler fire fighting application, Eurotubi Pressfitting System was certified according to the German
Guideline VdS – CEA 4001.
5.6 Other applications
Other stainless steel Eurotubi Pressfitting applications are summarised in tab. 4.
6. EUROTUBI CARBON STEEL PRESSFITTING SYSTEM
6.1 Pressfittings
The pressfittings are made of carbon steel E195 n. 1.0034 or, alternatively, E235 n. 1.0038. The diameters
range from 12 to 108 mm. The diameter 64 mm is being developed.
The types available are listed in the catalogue and the dimension they are identified with corresponds to the
external diameter of the pipe on which they are pressed.
The special process used to make the pressfittings can be broken down into the following main stages:
- cutting the pipe into sections and mechanical working;
- bending or any other working;
- cold forming of the o-ring seat;
- any welding of other parts of the fitting;
- annealing heat treatment;
- zinc surface treatment;
All the processes are controlled through the operating methods set by standard UNI EN ISO 9001 and are
submitted to continuous audits by the authorities that have approved them for the various applications, in
compliance with the related technical specifications for sprinkler fire fighting (VdS 2344/2100-26) and various
European accreditations (SITAC, CSTB, etc.).
6.2 Pipe work
Pipes used in main systems are made of carbon steel conforming to standard UNI EN 10305-3:
- E220 n. 1.0215 for the sprinkler fire fighting application
- E195 n. 1.0034 or E190 n. 1.0031 or other degrees of equivalent functional validity, for all the other
applications.
The pipes provided by Eurotubi Europa are marked with the “Eurotubi” or “EU” marking, unless in case of
specific requests of the customers. Generally they are commercially available and sold in 5 or 6 metre
lengths.