GB/T 14650-2025 General specification for marine auxiliary boiler English, Anglais, Englisch, Inglés, えいご
This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered.
ICS 47.020.20
CCS U 41
National Standard of the People's Republic of China
GB/T 14650-2025
Replaces GB/T 14650-2005
General specification for marine auxiliary boiler
Issue date: 2025-08-29 Implementation date: 2026-03-01
Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
the Standardization Administration of the People's Republic of China
Contents
Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 Classification and Basic Parameters
5 Requirements
6 Test Methods
7 Inspection Rules
8 Marking, Packaging, Accompanied Documents, Transportation and Storage
General Specification for Marine Auxiliary Boiler
1 Scope
This document specifies the classification, basic parameters, requirements, inspection rules, marking, packaging, accompanied documents, transportation and storage for marine auxiliary boilers (hereinafter referred to as "boilers"), and describes the corresponding test methods.
This document applies to the design, manufacturing, and acceptance testing of natural circulation steam boilers with design pressure not exceeding 2.5 MPa and water as working medium, as well as hot water boilers with water as the medium and an outlet temperature not exceeding 120°C.
2 Normative References
The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, subsequent amendments (excluding corrigenda) or revisions to these documents do not apply. For undated references, the latest version of the document (including all amendments) applies.
GB/T 699-2015 Quality carbon structural steels
GB/T 713.2-2023 Steel plates and strips for pressure equipment - Part 2: Alloyed steels with defined elevated temperature properties
GB/T 3087-2022 Seamless steel tubes for low and medium pressure boilers
GB/T 5312-2009 Seamless steel tubes of carbon and carbon-manganese qualities for shipbuilding
GB/T 11037 Test methods for strength and tightness of marine boilers and pressure vessels
GB/T 11038 Technical requirements for welding of pressure components of marine auxiliary boilers and pressure vessels
GB 13271-2014 Emission standard of air pollutants for boilers
GB/T 13306 Plates
GB/T 14649 Test method for marine auxiliary boiler property
GB/T 24947 Water quality requirements for marine auxiliary boilers
CB/T 3111 Marine auxiliary boiler - Low-lift safety valve
CB/T 3752 Marine mechanical pressure type burner
CB/T 3766 Steel flanges for exhaust pipes
CB/T 3920 Marine auxiliary boiler - Finned tube
CB/T 3921 Marine auxiliary boiler - Manhole device
CB/T 3922 Manufacturing requirements for marine auxiliary boiler pressure components
CB/T 3923 Marine auxiliary boiler - Handhole device
CB/T 3967 Marine steam atomizing type burner
CB/T 4105 Marine auxiliary boiler - Stud tube
CB/T 4222 Marine rotary cup type burner
CB/T 4428 Marine auxiliary boiler control equipment technical conditions
JB/T 2379 Metal-sheathed heating elementsRules for the Classification of Sea-going Steel Ships, China Classification Society, 2024
3 Terms and Definitions
The terms and definitions established in CB/T 3568.3, as well as the following, apply to this document.
3.1
Small Type Auxiliary Boiler
A steam boiler with evaporation capacity not exceeding 1 t/h and design pressure not exceeding 0.78 MPa, or a hot water boiler with thermal power not exceeding 0.7 MW.
4 Classification and Basic Parameters
4.1 Classification
4.1.1 Boilers are classified by medium as follows:
a) Steam boiler
b) Hot water boiler
4.1.2 Boilers are classified by installation type as follows:
a) Vertical boiler
b) Horizontal boiler
4.1.3 Boilers are classified by energy source type as follows:
a) Oil-fired boiler
b) Exhaust gas boiler
c) Electric heating boiler
d) Oil-exhaust gas composite boiler
e) Oil-electric composite boiler
f) Exhaust gas-electric composite boiler
4.1.4 Boilers are classified according to the circulation of medium inside or outside heat transfer tubes as follows:
a) Water tube boiler
b) Smoke tube boiler
c) Combined smoke-water tube boiler
4.1.5 Boilers are classified by structure as follows:
a) Vertical straight water tube boiler
b) Vertical cross water tube boiler
c) Vertical vertical smoke tube boiler
d) Horizontal smoke tube boiler
4.2 Basic Parameters
The basic parameters of boilers are listed in Table 1.
Standard
GB/T 14650-2025 General specification for marine auxiliary boiler (English Version)
GB/T 14650-2025 General specification for marine auxiliary boiler English, Anglais, Englisch, Inglés, えいご
This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered.
ICS 47.020.20
CCS U 41
National Standard of the People's Republic of China
GB/T 14650-2025
Replaces GB/T 14650-2005
General specification for marine auxiliary boiler
Issue date: 2025-08-29 Implementation date: 2026-03-01
Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
the Standardization Administration of the People's Republic of China
Contents
Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 Classification and Basic Parameters
5 Requirements
6 Test Methods
7 Inspection Rules
8 Marking, Packaging, Accompanied Documents, Transportation and Storage
General Specification for Marine Auxiliary Boiler
1 Scope
This document specifies the classification, basic parameters, requirements, inspection rules, marking, packaging, accompanied documents, transportation and storage for marine auxiliary boilers (hereinafter referred to as "boilers"), and describes the corresponding test methods.
This document applies to the design, manufacturing, and acceptance testing of natural circulation steam boilers with design pressure not exceeding 2.5 MPa and water as working medium, as well as hot water boilers with water as the medium and an outlet temperature not exceeding 120°C.
2 Normative References
The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, subsequent amendments (excluding corrigenda) or revisions to these documents do not apply. For undated references, the latest version of the document (including all amendments) applies.
GB/T 699-2015 Quality carbon structural steels
GB/T 713.2-2023 Steel plates and strips for pressure equipment - Part 2: Alloyed steels with defined elevated temperature properties
GB/T 3087-2022 Seamless steel tubes for low and medium pressure boilers
GB/T 5312-2009 Seamless steel tubes of carbon and carbon-manganese qualities for shipbuilding
GB/T 11037 Test methods for strength and tightness of marine boilers and pressure vessels
GB/T 11038 Technical requirements for welding of pressure components of marine auxiliary boilers and pressure vessels
GB 13271-2014 Emission standard of air pollutants for boilers
GB/T 13306 Plates
GB/T 14649 Test method for marine auxiliary boiler property
GB/T 24947 Water quality requirements for marine auxiliary boilers
CB/T 3111 Marine auxiliary boiler - Low-lift safety valve
CB/T 3752 Marine mechanical pressure type burner
CB/T 3766 Steel flanges for exhaust pipes
CB/T 3920 Marine auxiliary boiler - Finned tube
CB/T 3921 Marine auxiliary boiler - Manhole device
CB/T 3922 Manufacturing requirements for marine auxiliary boiler pressure components
CB/T 3923 Marine auxiliary boiler - Handhole device
CB/T 3967 Marine steam atomizing type burner
CB/T 4105 Marine auxiliary boiler - Stud tube
CB/T 4222 Marine rotary cup type burner
CB/T 4428 Marine auxiliary boiler control equipment technical conditions
JB/T 2379 Metal-sheathed heating elementsRules for the Classification of Sea-going Steel Ships, China Classification Society, 2024
3 Terms and Definitions
The terms and definitions established in CB/T 3568.3, as well as the following, apply to this document.
3.1
Small Type Auxiliary Boiler
A steam boiler with evaporation capacity not exceeding 1 t/h and design pressure not exceeding 0.78 MPa, or a hot water boiler with thermal power not exceeding 0.7 MW.
4 Classification and Basic Parameters
4.1 Classification
4.1.1 Boilers are classified by medium as follows:
a) Steam boiler
b) Hot water boiler
4.1.2 Boilers are classified by installation type as follows:
a) Vertical boiler
b) Horizontal boiler
4.1.3 Boilers are classified by energy source type as follows:
a) Oil-fired boiler
b) Exhaust gas boiler
c) Electric heating boiler
d) Oil-exhaust gas composite boiler
e) Oil-electric composite boiler
f) Exhaust gas-electric composite boiler
4.1.4 Boilers are classified according to the circulation of medium inside or outside heat transfer tubes as follows:
a) Water tube boiler
b) Smoke tube boiler
c) Combined smoke-water tube boiler
4.1.5 Boilers are classified by structure as follows:
a) Vertical straight water tube boiler
b) Vertical cross water tube boiler
c) Vertical vertical smoke tube boiler
d) Horizontal smoke tube boiler
4.2 Basic Parameters
The basic parameters of boilers are listed in Table 1.
