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Head Offices and Factory
Karl Dungs GmbH & Co. KG
Karl-Dungs-Platz1
D-73660 Urbach, Germany
T49 (0)7181-804-0
T49 (0)7181-804-166
Postal address
Karl Dungs GmbH & Co. KG
Postfach 12 29
D-73602 Schorndorf
www.dungs.com
The Pressure Equipment Directive (PED) and the
Energy Performance of Buildings Directive (EPBD)
require a periodic inspection of
heating applianc-
es in order to ensure a high degree of efficiency
over a long term and, consequently, the least envi-
ronmental pollution.
It is necessary to replace safety-relevant com-
ponents after they have reached the end of
their useful life. This recommendation applies
only to heating appliances and not to indus-
trial heating processes. DUNGS recommends
replacing such components according to the
following table:
Safety relevant component
USEFUL LIFE
DUNGS recommends
replacement after:
Operating
EN
Standard
Valve proving systems
10 years
250.000
EN 1643
Pressure switch
10 years
N/A
EN 1854
Automatic burner control with flame safeguard
10 years
250.000
EN 298
Flame detector (UV probes)
10.000 h operating hours
Gas pressure regulators
15 years
N/A
EN 88
EN 12078
Gas valve without valve testing system*
10 years
50.000-500.000
depends on diameter
EN 126
EN 161
Low gas pressure switch
10 years
N/A
IEN 1643
Pressure relief valve
10 years
N/A
EN 88
EN 14382
Gas-air ratio control system
10 years
N/A
EN 12067
We reserve the right to make modifications in the course of technical development.