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8.2 Maintenance for vacuum safety valves
8.2.1 Annual check-up of the vacuum safety valve
To check if the vacuum safety valve works satisfactorily, an annual visual inspection needs to be conducted.
The vacuum safety valve passes this visual inspection if the following criteria are met:
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The vacuum safety valve is free of leakage that would cause water to flow out of the buffer tank;
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The gaskets of the vacuum safety valve and between the safety valve and the welded flange look
undamaged and do not give rise to suspected water or air leakage.
8.2.2 Revision of the vacuum safety valve
PRESSCON advises to let the vacuum safety valve be revised every two years. The vacuum safety valve
can only be revised in the factory of PRESSCON. An exchange program with revised vacuum safety valves
in stock is accessible for this. The vacuum safety valve needs to be demounted of the horizontal buffer tank.
The disassembling of the old vacuum safety valve and the mounting of the revised vacuum safety valve
needs to be carried out by a licensed installer that will be able to safely relieve the pressure of the buffer tank
and vacuum safety valve.
Содержание FX PREVENT
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