API STD 520, PART 2 Sizing, Selection, and Installation of Pressure-relieving Devices: Part II - Installation, Seventh Edition

STANDARD by American Petroleum Institute , 10/01/2020 This standard covers methods of installation for pressure-relieving devices (PRDs) for equipment that has a maximum allowable working pressure (MAWP) of 15 psig (1.03 barg or 103 kPAg) or greater. Pressure-relief valves (PRVs) or rupture disks (RDs) may be used independently or in combination with each other to provide the required protection against excessive pressure accumulation.As used in this standard, the term "pressure-relief valve" includes safety relief valves used in either compressible or incompressible fluid service, and relief valves used in incompressible fluid service. This standard covers gas, vapor, steam, two-phase, and incompressible fluid service; it does not cover special applications that require unusual installation considerations.   Product Details Edition: 7th Published: 10/01/2020 Number of Pages: 69