ASME SECTION V-2008 pdf download

ASME SECTION V-2008 pdf download

The American Society ofMechanical Engineers set up a committee in 1911 for the purpose offormulating standard rules for the construction of steam boilers and other pres- sure vessels. This committee is now called the Boiler and Pressure Vessel Committee. The Committee’s function is to establish rules of safety, relating only to pressure integrity, governing the construc- tion 1 of boilers, pressure vessels, transport tanks and nuclear components, and inservice inspection for pressure integrity of nuclear components and transport tanks, and to interpret these rules when questions arise regarding their intent. This code does not address other safety issues relat- ing to theconstructionofboilers, pressure vessels, transport tanks and nuclearcomponents, and the inservice inspection of nuclear components and transport tanks. The user of the Code should refer to other pertinent codes, standards, laws, regulations, or other relevant documents. With few exceptions, the rules do not, of practical necessity, reflect the likelihood and consequences ofdeterioration in service related to specific service fluids or external operating envi- ronments. Recognizing this, the Committee has approved a wide variety ofconstruction rules in this Section to allow the user or his designee to select those which will provide a pressure vessel having a margin for deterioration in ser- vice so as to give a reasonably long, safe period of use- fulness. Accordingly, it is not intended that this Section be usedas adesignhandbook; rather, engineering judgment must be employed in the selection of those sets of Code rules suitable to any specific service or need.
The Committee recognizes that tools and techniques used for design and analysis change as technology prog- resses and expects engineers to use good judgment in the application of these tools. The designer is responsible for complying with Code rules and demonstrating compliance with Code equations when such equations are mandatory. The Code neither requires nor prohibits the use ofcomput- ers for the design or analysis of components constructed to the requirements of the Code. However, designers and engineers using computer programs for design or analysis are cautioned that they are responsible for all technical assumptions inherent in the programs they use and they are responsible for the application of these programs to their design. The Code does not fully address tolerances. When dimensions, sizes, or other parameters are not specified with tolerances, the values of these parameters are consid- ered nominal and allowable tolerances or local variances may be considered acceptable when based on engineering judgment and standard practices as determined by the designer. The Boiler and Pressure Vessel Committee deals with the care and inspection of boilers and pressure vessels in service only to the extent of providing suggested rules of good practice as an aid to owners and their inspectors. The rules established by the Committee are not to be interpreted as approving, recommending, or endorsing any proprietary or specific design or as limiting in any way the manufacturer’s freedom to choose any method of design orany formofconstruction thatconforms to the Code rules.
The specifications for materials given in Section II are identical with orsimilarto those ofspecifications published by ASTM, AWS, and other recognized national or interna- tional organizations. When reference is made in an ASME material specification to a non-ASME specification for which a companion ASME specification exists, the refer- ence shall be interpreted as applying to the ASME material specification. Not all materials included in the material specifications in Section II have been adopted for Code use. Usage is limited to those materials and grades adopted by atleastone ofthe otherSections ofthe Code forapplica- tion under rules of that Section. All materials allowed by these various Sections and used for construction within the scope of their rules shall be furnished in accordance with material specifications containedinSection IIorreferenced in the Guidelines forAcceptable ASTM Editions in Section II, Parts A and B, exceptwhere otherwise provided in Code Cases or in the applicable Section of the Code. Materials covered by these specifications are acceptable for use in items covered by the Code Sections only to the degree indicated in the applicable Section.

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