Do the replacement periods apply even if the pressure regulator is still working?
In principle, the replacement periods also apply to functioning devices, regardless of whether the pressure regulator is installed in the caravan, household or industry, for example.
In Germany, some regulations apply to LPG systems. For instance: TRF 2012, DGUV 110-010, DIN 4811, DVGW worksheet G 607 (A)…
Some of these regulations define a replacement period for the components of the system, especially for pressure regulators. These also apply if the pressure regulator is still working reliably and regardless of whether the operator uses the pressure regulator often, rarely or not at all.
Safety of the system
Replacement in due time is not to be understood as an annoyance for the operator. It is a preventive measure, for example to ensure the long-term safety of your system.
Of course, there are no rules without exception. If a qualified person inspects your commercial LPG system, accepts it and confirms that the system is working properly, you may still be able to use the pressure regulator. This passage is included in regulation 79 of the German Accident Insurance Act (DGUV V 79).
+++ Update February 2023: DGUV V 79 is no longer valid and has been replaced by DGUV regulation 110-010. This no longer contains a corresponding passage, which means that the replacement period of ten years is binding! +++
You can find out more about the replacement periods for pressure regulators in an informative overview.