Refinery Piping Code, ANSI

This code states that it covers all piping located within a refinery. Piping is defined as including valves. 

Pressure. The code states that the piping component shall be designed for an internal pressure representing the most severe condition of coincident pressure and temperature expected in normal operation (including fluid head). 

Temperature. The design temperature of the metal representing the most severe condition of pressure and temperature is stated, for threaded and welding-end valves, to be 95% of the fluid temperature. For flanged valves the design temperature should be 90% of the fluid temperature. 

Short Regular Venturi Round Port Full Bore Short Regular Venturi Round Port Full Bore Short Regular Venturi Round Port Full Bore  

Note These ratings are in pounds per square inch gage and are all subject to stipulations in pars. 45-50, API 600 which form a part of this table. 

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FIG. 10-124 Scope of piping covered by the Chemical Plant and Petroleum Refinery Piping Code, ANSI B31.3 (FromASME Chemical Plant and Fetroleum Refinery Piping Code, ANSI B31.3—1980 reproduced with permission of the publisher the American Society of Mechanical Engineers, New Yorh.)... 

Extracted from the Chemical Plant and Petroleum Refinery Piping Code, ANSI B.31.,3-cal Engineers, New York. 

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