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Subcommittee on Pressure Relieving Systems

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Welcome to the home page of the API Subcommittee on Pressure-Relieving Systems (SCPRS).  The SCPRS develops standards and recommended practices covering the sizing, selection, and installation of pressure-relief devices used to protect unfired pressure vessels in the refining and petrochemical industries.  The SCPRS also establishes venting requirements for aboveground and underground liquid petroleum storage tanks.  Each meeting of the committee provides a forum for an information exchange on problems and opportunities where industry experts share experiences from operations around the world.

The SCPRS work program of documents includes:

  • RP 520 - Sizing, Selection, and Installation of Pressure-Relieving Devices 
    Part I - Sizing and Selection
    Part II - Installation
  • Std 521 - Pressure-Relieving and Depressuring Systems
  • Std 526 - Flanged Steel Pressure Relief Valves
  • RP 527 - Seat Tightness of Pressure Relief Valves
  • Std 2000 - Venting Atmospheric and Low-Pressure Storage Tanks (Nonrefrigerated and Refrigerated)  


SCPRS Chair:   Tom Bevilacqua, XOM
SCPRS Vice-Chair:   Matt Brewer, BP
API 520 Task Force Chair: Phil Henry, Equity Engineering
API 521 Task Force Chair: Mike Porter, Chevron
API 526-527 Task Force Chair, Emile Tezzo, Emerson
API 2000 Task Force Chair: Vacant (John Burgess, Smith & Burgess interim)

 

 
 

 Meeting Agendas - Public Access

Folder: 2017 - Spring2017 - Springdaniel.pulis@siemens.com
Folder: 2012 - Fall2012 - Fallcrimaudos@api.org
Folder: 2012 - Spring2012 - Springcrimaudos@api.org
Folder: 2011 - Fall2011 - Fallcrimaudos@api.org
Folder: 2011 - Spring2011 - Springcrimaudos@api.org
Folder: 2010 - Fall2010 - Fallcrimaudos@api.org
Folder: 2010 - Spring2010 - Springcrimaudos@api.org
Folder: 2008 - Fall2008 - Fallcrimaudos@api.org
Folder: 2008 - Spring2008 - Springcrimaudos@api.org
Folder: 2009 - Spring2009 - Springcrimaudos@api.org
Folder: 2009 - Fall2009 - Fallcrimaudos@api.org

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  API Calendar of Events
  CRE Documents
 

 Open Ballots

 Ballot IDStatusResultsOpensClosesDescription
Committee ID : 439SCPRS Subcommittee
4100ClosedResolution Required03/13/201704/24/2017Std 521 Ballot 4 items
4247OpenIn Progress08/29/201710/13/2017API 521 7th Edition Ballot Item 5.1 - Work Item 22
4248OpenIn Progress08/29/201710/13/2017API 521 7th Edition Ballot Item 5.2 - Work Item 42
4274OpenIn Progress09/29/201710/31/2017API 520 Part I 10th Edition Ballot Item 2.1
4275OpenIn Progress09/29/201710/31/2017API 520 Part I 10th Edition Ballot Item 2.2
4276OpenIn Progress09/29/201710/31/2017API 520 Part I 10th Edition Ballot Item 2.3
4277OpenIn Progress09/29/201710/31/2017API 520 Part I 10th Edition Ballot Item 2.4
4278OpenIn Progress09/29/201710/31/2017API 520 Part I 10th Edition Ballot Item 2.5
4279OpenIn Progress09/29/201710/31/2017API 520 Part I 10th Edition Ballot Item 2.6
4280OpenIn Progress09/29/201710/31/2017API 520 Part I 10th Edition Ballot Item 2.7
4281OpenIn Progress09/29/201710/31/2017API 520 Part II 7th Edition Ballot Item 2.1
4282OpenIn Progress09/29/201710/31/2017API 520 Part II 7th Edition Ballot Item 2.2
 
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