AN INTRODUCTION TO THE DESIGN AND MAINTENANCE OF CARGO SYSTEM PRESSURE RELIEF VALVES ON BOARD GAS CARRIERS
|D O W N L O A D|
This publication developed by the professionals of the SIGTTO organization was intended to advise the people engaged in the works on board gas carriers on the proper procedures relating to the technical maintenance of the PRVs, standing for the pressure relief valves, address various operation problems, possible faults and emergency closure.
The idea of the authors was to provide some general guidance to the crew members of the vessels - note that the volume is not expected to replace any of the instructions or manuals provided by the manufacturers of the equipment in question.
Opening with some introduction, the content of the volume covers the general requirements that are applicable to the PRVs including requirements to their design and installation on board. The types of the PRVs are addressed in detail, covering both spring operated and pilot operated pressure relief valves. The emergency closure of the PRVs is considered particularly important and is therefore dealt with in a separate chapter.
The publication also covers the in-service testing of the valves. Five appendices provide additional information including extracts from the IMO IGC Code, pressure levels, terminology and definitions used etc.
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