GB/T 151-2014: Heat exchanger

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Scope

1.1 This standard specifies general requirements of metallic heat exchangers as well as
materials, design, fabrication, inspection, acceptance, installation and use requirements of
tube-shell heat exchangers.
1.2 General requirements of this standard are applicable to the tube-shell heat exchangers
and the heat exchangers in other structural types. All the provisions of this standard are
applicable to tube-shell heat exchangers.
1.3 The design pressure to which this standard applies.
a) Design pressure of tube-shell heat exchangers is not greater than 35MPa;
b) Design pressure of the heat exchangers in other structural types shall be determined
according to the corresponding normative references.
1.4 The design temperature to which this standard applies.
a) Steel shall not exceed the permissible service temperature range of the materials
listed in GB 150.2-2011;
b) Design temperatures of other metal materials shall be determined according to the
permissible service temperature of the materials listed in corresponding normative references.
1.5 In this standard, applicable nominal diameters of tube-shell heat exchangers shall not be
greater than 4,000mm, and the product of design pressure (MPa) multiplied by nominal
diameter (mm) shall not be greater than 2.7×104.
1.6 The tube-shell heat exchangers beyond the scope of 1.5 may be fabricated and
constructed by reference to this standard.
1.7 This standard does not apply to the following heat exchangers.
1.8 Defined range of heat exchanger;
a) Connection between the heat exchanger and the external pipe.
1) The first welded groove end face of girth joint;
2) The first threaded end face of threaded joint;
3) The first flange seal surface of flange connection;
4) The first seal surface of special connecting piece or pipe fittings connection.
b) Pressure head, flat-cover and its fasteners of connecting pipe, manhole, and
handhole, etc.;
c) Attachment weld between non-pressure components and pressure components;
d) Non-pressure components directly connected to the heat exchangers, e.g. support
and subplate;
e) Overpressure relief devices mounted to the heat exchangers.

Basic Data

Standard ID	GB/T 151-2014 (GB/T151-2014)
Description (Translated English)	Heat exchanger
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	J75
Classification of International Standard	71.120.30
Word Count Estimation	252,252
Date of Issue	12/5/2014
Date of Implementation	5/1/2015
Older Standard (superseded by this standard)	GB 151-1999
Quoted Standard	GB 150.1-2011; GB 150.2-2011; GB 150.3-2011; GB 150.4-2011; GB/T 1527-2006; GB/T 1804; GB/T 2882-2013; GB/T 3625-2007; GB 5310; GB/T 5313-2010; GB 6479; GB/T 6893-2010; GB/T 8890-2007; GB 9948; GB 13296; GB 16749; GB/T 21832; GB/T 21833; GB/T 24590; GB/T
Regulation (derived from)	Announcement of Newly Approved National Standards 2014 No. 27
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard specifies the general requirements for metal heat exchangers, shell and tube heat exchanger provides for materials, design, manufacture, testing, inspection and installation and use requirements. General requirements of this standard apply t