000			02082nab a2200217 4500
005			20260520004607.0
008			260224s2018 xxu ing
041			_aInglés
245	0	0	_aPressure Relief Valve Inspection Interval
260			_a _b _cmar. 2018
270			_a09/10/2020 ; 09/10/2020
300			_a5 p. ; 37-41
520			_aDetermining the correct interval for pressure relief valve inspection, testing, and maintenance remains a major challenge for facilities covered by the U.S. Occupational Safety and Health Administration Process Safety Management Standard. To this end, guidance is provided by API Standard 510, Pressure Vessel Inspection Code: In-Service Inspection, Rating, Repair, and Alteration, by API Recommended Practice 576, Inspection of Pressure-relieving Devices, by API Standard 520, Sizing, Selection, and Installation of Pressure-Relieving Devices, Part II-Installation, and by NB-23, National Board Inspection Code—Part 2 Inspection. Furthermore, ASME BPVC, Sections I and VIII, provide general guidelines for the repair of pressure relief valves. However, the testing and inspection interval listed, up to ten years, is the maximum time span between shop inspections and overhaul. Further direction is often requested for determining the proper interval for valves in typical process services, especially in cases of PRV chattering. Recent API STD 520 Part II guidance on performing engineering analyses for PRV installations, based on service and specific installation, is included here. In this paper, a decision-making approach to determining these intervals based on a combined understanding of risk-based inspection, quality assurance, engineering analyses, and facility experience is presented. The approach provides process operators and managers with additional assistance in making this determination.
581			_a1
773	0		_tProcess safety progress _g
942			_cARTICULO
100	1		_aTrotta, Thiago _959744
100	1		_aKashou, Charles _959745
100	1		_aFaulk, Nancy _959746
999			_c193600 _d193600