afriso MS Notice Technique page 24

4 Product description
4.1 Product identification (nameplate)
The nameplate is used to identify the product. The nameplate shows the fol-
lowing data:
A
B
C
D
E
F
Fig. 1: Example of adhesive label on packaging
4.2 Function
When the water in the system heats up, it expands. The pressure in the sys-
tem increases. When the maximum permissible pressure in the system is
exceeded, the spring and the diaphragm integrated in the installed product
are pressed back. Liquid is discharged until the pressure in the system has
dropped below the maximum permissible pressure.
The heat capacity of the system to be safeguarded determines the inlet size
of the product.
The inlet size, the outlet size, the nominal pressure and the application area
are indicated on the cap of the product and on the adhesive label on the pack-
aging.
4.3 Approvals, conformities, certifications
The product complies with:
• Pressure Equipment Directive (2014/68/EU)
Products whose valve outlet is greater than the valve inlet also have:
• Type approval mark TÜV SV YY-2017.13.H
YY represents the year of the approval.
Product description
A. Product
B. Inlet x outlet
C. Nominal pressure
D. Application area: Heating system
E. Part number
F. Barcode
EN
7
MS