EN 12819-2019 pdf download.LPG equipment and accessories – Inspection and requalification of LPG pressure vessels greater than 13 m³.
For pressure vessels provided with means of protection other than cathodic, when an acoustic emission test is performed, an external visual inspection of directly accessible parts of the shell and the pressure vessel fittings can be done instead of the tests described in group 2.
6.3.3 Recommissioning
At recommissioning. after periodic Inspection and requalification, leak checks shall be carried out at connections. Gaskets that have been removed when breaking connections shall not be reused.
When underground pressure vessels are excavated for inspection, the anchoring system shall be checked prior to commissioning.
7 Inspection of pressure vessel and pressure vessel fittings
7.1 Pressure vessel
Aboveground pressure vessels shall be checked for external cor’oson or visible damage. If pressure vessels are provided with fixed passive fire protection, which prevents the full external visual inspection according to Annex A, the written scheme shall specif alternative techniques to identiI’ the presence of defects (e.g. the presence of corrosion).
For underground pressure vessels, only the visible part of the pressure vessel shall be checked for external corrosion or visible damage.
7.2 Pressure vessel fittings and immediate pipework
The fittings and Immediate pipework shall be inspected for the following and rectified as necessary:
— corrosion;
— damage;
— inoperative or leaking filler valves;
— worn or damaged filler valve thread or connection;
7.3 Valve cover
There shall be checks that the valve covers, if fitted, are in place, undamaged and able to be locked.
7.4 Bonding
7.4.1 The electrical bonding between the pressure vessel and earth point shall be visually checked, where fitted.
7.5.1 There shall be either:
a) a test of the set pressure of the pressure relief valve and, for an external pressure relief valve, a check of the condition of the spring: or
b) the pressure relielvalve shall be replaced with a new valve according to EN 14129 or a reconditioned valve according to EN 16631.
WARNING — Do not remove a pressure relief valve from a pressure relief valve manifold or check-device while a pressure vessel is under pressure, unless a serviceable replacement Is available for immediate fitting. Do not remove a pressure relief valve mounted In a pressure vessel under pressure unless the type and construction of the check device can be identified and the manufacturer’s instructions for safe removal are complied with. Some check devices or pressure relief valves include positive means of confirming that the check device has closed before the pressure relief valve is unscrewed to an otherwise dangerous stage.
7.5.2 The pressure relief valve drain hole, if provided, shall be checked to ensure it is clear.
7.5.3 Stack pipes shall be inspected for corrosion. Pressure relief valves shall also be externally inspected if corrosion is found in the stack pipes. There shall be a check that rain caps are present and in good condition.
7.5.4 Multiport mechanisms shall be checked to ensure that they move freely into position when operated.
WARNING — After testing, the mechanism shall be positioned so that pressure relief valve inlets are not obstructed.
7.6 Pressure gauge
The pressure gauge, if fitted, shall be calibrated or metrological verified or replaced.
7.7 Contents gauges
Gauging devices or contents gauges that bleed to the atmosphere (e.g. rotary tubes, fixed liquid level gauges or slip tubes) shall be tested for correct functions when filling the pressure vessel. Other types of contents gauges shall be checked as required (e.g. during product transfer to or from the pressure vessel).
7.8 Shut-off valves
Shut-off valves shall be tested for correct function.
7.14 Remotely operated valves
Remotely operated valves (if fitted) shall be checked for correct operation when activated.
7.15 Corrosion protection system
Any check required for the selected corrosion protection system, as detailed in the written scheme, shall be carried out.
7.16 Piers and foundations for aboveground pressure vessels
The condition of piers and foundations shall be checked to ensure that they are sound with no visible damage or uneven settlement. Anchoring bolts shall be visually inspected for deterioration, where fitted and accessible.
8 Competence
8.1 General
Guidance on the competences required to perform routine inspection, periodic inspection and requalifIcation are detailed in 8.2 to 8.4.
NOTE It is advised to consider definitions of the competence to do inspections/requalilIcation per national legislations.
8.2 Routine inspection competence
Persons shall be deemed competent to carry out routine inspections if they have received the appropriate training to carry out the routine inspection of 6.1 and to prepare a report.
8.3 Periodic inspection competence
Persons shall be deemed competent to carry out periodic inspections if:
— they are competent to carry out routine inspections (see 8.1); and
— they are part of an inspection team with the appropriate background, training and qualification, or have worked with or within the LPG industry, performing the relevant task, and have a good general knowledge of LPG and its operating environment; or
— they are part of an accredited inspection body. The relevant attributes shall be documented.EN 12819-2019 pdf download.

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