Blast load resistant design & API RPs

[NGiLuzzu]

In a project specification (by ConocoPhillips - Aker Kverner) for valves to be installed on a platform in the Northern Sea, it is possible to read: "... The equipment shall be designed to withstand a blast load of minimum 0.3 bar drag..."
What does it mean?
From a website about naval weapons [1], I can argue that the blast load can be found as the product of the drag pressure and the area of the surface perpendicular to the shockwave front... but, once you have calculated it, how can you apply it to the design of a valve and actuator assembly?
In another related website [2], the following API reccommended practices are mentioned:
API RP 2A;
API RP 75;
API RP 14G;
API RP 14J.
Does anybody know if they can help?

Many thanks to all, 'NGL


[1] =

http://fas.org/man/dod-101/navy/docs/es310/dam_crit/dam_crit.htm

[2] =

http://www.mslengineering.com/msl_files/Profile-BP2.htm

 

[jsummerfield]

Your blast load example sounds architectural. For the other codes and standards, check with the

http://www.Eng-Tips.com

Engineering Codes and Standards groups for API, the American Petroleum Institute. Example offshore codes include the following:

Spec 14A: Specification for Subsurface Safety Valve Equipment

RP 14B: Recommended Practice for Design, Installation, Repair and Operation of Subsurface Safety Valve Systems.

RP 14C: Recommended Practice for Analysis, Design, Installation and Testing of Basic Surface Safety Systems on Offshore Production Platforms.

Spec 14D: Specification for Wellhead Surface Safety Valves and Underwater Safety Valves for Offshore Service.

RP 14E Design and Installation of Offshore Production Platform Piping Systems

RP 14F Design and Installation of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for UnclassiJed and Class I, Division 1 and Division 2 Locations

API RP 14G; Recommended Practice for Fire Prevention and Control on Open Type Offshore Production Platforms

RP 14H: Recommended Practice for Use of Surface Safety Valves and Underwater Safety Valves Offshore.

API RP 14J Design and Hazards Analysis for Offshore Production Facilities

RP 75 Development of a Safety and Environmental Management Program for Outer Continental Shelf (0CS) Operations and Facilities


John