ASME B16.34-2017 free download

09-28-2020 comment

ASME B16.34-2017 pdf free download.Valves–Flanged, Threaded, and Welding End.The size of this pdf file is 47.1M.You can download it here.If you don’t mind,hope you share this website on your FB or other social platforms.
ASME B16.34-2017 applies to new construction. It covers pressure-temperature ratings, dimensions, tolerances, materials, nondestructive examination requirements, testing, and marking for cast, forged, and fabricated flanged, threaded, and welding end and wafer or flangeless valves of steel, nickel-base alloys, and other alloys shown in Table 1.
ASME B16.34-2017 is to be used in conjunction with equipment described in other volumes of the ASME B16 Series of Standards as well as with other ASME standards, such as the Boiler and Pressure Vessel Code and the B31 Piping Codes.
An American National Standard is intended as a basis for common practice by the manufacturer, the user, and the general public. The existence of an American National Standard does not in itself preclude the manufacture, sale, or use of oducts not conforming to the standard. Mandatory conformance is established, for example, by reference to the stan dard in a code, specification, sales contract, or public law.
It should be noted, specifically regarding this Standard, that certain requirements reflecting the general application of valves in a wide variety of services may not be considered to be appropriate for some valves whose application is known and which may incorporate certain features found by successful experience to be satisfactory. A specific case in point is that involving valves developed and used in gas and petroleum product pipelines. Conformance of such valves to the existing API 6D may by itself be sufficient to satisfy requirements of federal rules and regulations established by the Department of Transportation, Office of Pipeline Safety Operations. Another specific case is that involving valves used in instrument systems under an applicable piping code. Conformance of such valves to the requirements of an existing piping code may by itself be sufficient to satisfy jurisdictional rules and regulations.
This edition of ASME B16.34 states values in both Metric and U.S. Customary units of measurement. These systems of nits are to be regarded separately. The values stated in each system are not exact equivalents; therefore each system shall be used independently of the other. Combining values from the two systems constitutes nonconformance with this Standard.
1.3 Selection of Valve Types and Material Service Conditions
Criteria for selection of valve types and materials suitable for particular fluid service are not within the scope of this Standard.
1.4 Convention
For determining conformance with this Standard, the onvention for fixing significant digits where limits (maximum and minimum values) are specified shall be as defined in ASTM E29. This requires that an observed or calculated value he rounded off to the nearest unit in the last right-hand digit used for expressing the limit. Decimal values and tolerances do not imply a particular method of measurement.

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