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ASME BPVC 2023 Section XIII
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PART 1
GENERAL REQUIREMENTS
1.1 SCOPE
a The rules of this Section provide the requirements
for the overpressure protection of pressurized equipment
such as boilers, pressure vessels, and piping systems.
Overpressure protection methods include
1 releasing excess pressure by use of pressure
relief devices
2 applying controls to prevent an increase in pressure
overpressure protection by system design
3 using a combination of 1 and 2
b The referencing Code or Standard specifies the
objectives of the overpressure protection and acceptable
methods to achieve it. Where a pressure-releasing overpressure
protection method is specified, the referencing
Code or Standard identifies the permissible devices based
on this Sections rules for devices to be marked with the
Certification Mark and appropriate Designator e.g., HV,
UV, UD.
c This Section includes
1 requirements relating to pressure integrity and
performance governing the construction and installation
of pressure relief devices. Construction requirements
include materials, design, manufacture, examination,
inspection, production testing, and certification. Installation
requirements address only the variables that affect
the performance and pressure-relieving function of the
devices, including the inlet and outlet piping.
2 requirements for conducting tests and analyses
to determine the performance of pressure relief devices.
These include rules for device-type certification of
relieving capacity and/or flow resistance and production
testing for new pressure relief devices.
3 requirements for the use of overpressure protection
by system design.
4 Mandatory Appendices that address specific
subjects not covered elsewhere in this Section.
5 Nonmandatory Appendices that provide information
and suggested best practices.
d This Section contains requirements, specific prohibitions,
and nonmandatory guidance for the design, materials,
manufacture, examination, inspection, testing,
assembly, installation, and certification of pressure
relief devices. The Code does not address all aspects of
overpressure protection, and those aspects that are not
specifically addressed should not be considered prohibited.
In these situations, engineering judgment shall be
applied in a manner consistent with the philosophy of
this Section, and such judgments shall never be used
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to overrule mandatory requirements or specific prohibitions
of this Section or the referencing Code or Standard.
e The scope of this Section has been established to
identify the devices and methods considered in formulating
the rules given in this Section. Laws or regulations
issued by municipal, state, provincial, federal, or other
enforcement or regulatory bodies having jurisdiction at
the location of an installation establish the mandatory
applicability of the Code rules, in whole or in part,
within their jurisdiction.
f In relation to the geometry of pressure-containing
and pressure-retaining parts of a device, the scope of this
Section shall begin at the inlet connection of the device and
end at the outlet connection of the device. The inlet and
outlet connections are defined as
1 the first circumferential joint for welded connections,
excluding the connecting weld
2 the first threaded joint for screwed connections
3 the face of the flange for bolted, flanged connections,
excluding the bolting
4 the first sealing surface for proprietary connections
or fittings
1.2 ORGANIZATION
a This Section is divided into 13 Parts.
1 Part 1 contains the scope and general requirements
of this Section.
2 Part 2 contains the responsibilities for providing
overpressure protection.
3 Part 3 contains requirements for the design,
materials, inspection, testing, welding, and marking of
pressure relief valves.
4 Part 4 contains requirements for the design,
materials, inspection, testing, welding, and marking of
rupture disk devices.
5 Part 5 contains requirements for the design,
materials, inspection, testing, welding, and marking of
pin devices.
6 Part 6 contains requirements for the design,
materials, inspection, testing, welding, and marking of
spring-actuated non-reclosing devices.
7 Part 7 contains requirements for the design,
materials, inspection, testing, welding, and marking of
temperature and pressure relief valves.
ASME BPVC.XIII-2023
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