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API 520-2

M00022536

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API 520-2 Sizing, Selection, and Installation of Pressure-Relieving Devices in Refineries: Part II - Installation

standard by American Petroleum Institute, 12/01/1994

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Covers the methods of installation for pressure relief devices for equipment that has a maximum allowable working pressure (MAWP) of 15 psig (1.03 bar g) or greater. Pressure relief valves or rupture disks may be used independently or in combination with each other to provide the required protection against excessive pressure accumulation. The term "pressure relief valve" includes safety relief valves used in either compressible or imcompressible fluid service, and relief valves used in incompressible fluid service. Covers gas, vapor, steam, and incompressible fluid service.