ASME BPVC.SSC.VIII.XII.II.V.IX-2021 pdf free.Summary of Significant Changes in the 2021 ASME Boiler and Pressure Vessel Code.
1.2 Exemptions From the Scope of Section VII, Division 1
The following classes of vessels are exempt from the scope of Section VII,I Division 1:
(a) those within the scope of other ASME BPVC Sections
(b) fired process tubular heaters
(c) pressure containers that are integral parts or components of rotating or reciprocating mechanical devices, wherethe primary design considerations, stresses, or both are derived from the functional requirements of the device
(d) structures whose primary function is the transport of fuids from one location to another within a system of whichitis an integral part, that is, a piping system
(e) piping components, such as pipe, flanges, bolting, gaskets, valves, expansion joints, and fttings, and the pressure-containing parts of other components, such as strainers and devices that serve such purposes as mixing, separating,
snubbing. distributing, and metering or controlling flow, provided that pressure-containing parts of such components aregenerally recognized as piping components or accessories
0 vessels for containing water under pressure, including those containing air the compression of which serves only asa cushion, when none of the following limitations are exceeded:
(1) a design pressure of 300 psi [2 MPa]
(2) design temperature of 210°F (99°C]
(g) hot water supply storage tanks heated by steam or any other indirect means when none of the followving limitationsis exceeded: .
(1) a heat input of 200,000 Btu/hr (58.6 kW)
(2) a water temperature of 210°F (99°C)
(3) a nominal water-containing capacity of 120 gal (450 L]"h) vessels not exceeding the design pressure at the top of the vessel, with no limitation on size
(i) vessels having an internal or external pressure not exceeding 15 psi (100 kPa]
0) combination units having an internal or external pressure in each chamber not exceeding 15 psi (100 kPa) anddifferential pressure on the common elements not exceeding 15 psi (100 kPa)
(k) vessels having an inside diameter, width, height, or cross section diagonal not exceeding 6 in. (152 mm), with nolimitation on length of vessel or pressure
(0) pressure vessels for human occupancy
Nevertheless, any pressure vessel that complies with all the applicable requirements of Section VII, Division 1 may becertifed by the Manufacturer and stamped with the Certifcation Mark with the U Designator.ASME BPVC.SSC.VIII.XII.II.V.IX pdf download.