An Introduction to the Design and Maintenance of Cargo System Pressure Relief Valves on Board Gas Carriers

An Introduction to the Design and Maintenance of Cargo System Pressure Relief Valves on Board Gas Carriers
Autor:S.I.G.T.T.O.
Páginas:35 págs. págs.
Fecha:1998
Precio:67,50 €

Requirements for pressure relief valves. Types of pressure relief valves: General; Valve and design requirements; Design and installation. Types of Pressure Relief: Pilot operated valves; Spring operated pressure relief valves. Preventative and Planned Maintenance Procedures for Pressure Relief Valves: Scope; Pressure relief valve preventative maintenance philosophy; Pressure relief valve preventative maintenance frequency; Pressure relief valve maintenance and inspection; Maintenance and diagrams; Spare parts. Emergency Closure of Pressure Relief Valvves. Operating Problems and Faults: Operating Problems and Faults: Operating problems; Faults; Chloride stress corrosion cracking. In-Service Testing. Appendices: IMO IGC Code - Extracts from Chapter 8 Cargo Tank Vent Systems; Definitions and Terminology Used in Regard to Pressure Relief Valves; Metal to Metal Sea Valves - Precautions and Hints for Lapping Seats; Pressure Levels; Fire Activated Pressure Relief Systems. References