GB/T 590-2026 Marine cast iron flanged stop valves 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
CCS
National Standard of the People's Republic of China
GB/T 590-2026
Marine cast iron flanged stop valves
船用法兰铸铁截止阀
Issue date: 2026-09-28 Implementation date: 2027-01-01
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
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Classification and marking
5 Requirements
6 Test methods
7 Inspection rules
8 Packaging and storage
Marine cast iron globe valves
1 Scope
This document specifies the classification and marking, requirements, test methods, inspection rules, and packaging and storage of marine cast iron globe valves (hereinafter referred to as "globe valves").
This document is applicable to the design, manufacture and acceptance of globe valves used in marine piping systems for seawater, fresh water, fuel oil and lubricating oil.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 600—2023, General technical requirements for marine piping valves
GB/T 898—1988, Double-end studs, *b*m = 1.25 *d*
GB/T 1176—2013, Cast copper and copper alloys
GB/T 1348—2019, Spheroidal graphite iron castings
GB/T 1958, Geometrical product specifications (GPS) — Geometrical tolerance — Verification
GB/T 3032, Marking of marine valves and piping accessories
GB/T 4423—2020, Copper and copper alloy drawn bars
GB/T 6170—2015, Hexagon nuts, style 1
GB/T 9124.1—2019, Steel pipe flanges — Part 1: PN series
GB/T 9439—2023, Grey iron castings
GB/T 11698—2026, Length of structural members between flanged pipe connections for marine use
CB/T 3530—1993, Handwheels for piping accessories
CB/T 3589—1994, Non-asbestos gasket and packing for marine valves
CB/T 4196—2011, Marine valve flange — Connection dimensions and sealing surfaces
JB/T 6626—2011, Polytetrafluoroethylene braided packings
QB/T 4041—2010, Polytetrafluoroethylene sheets
3 Terms and definitions
No terms and definitions are required to be defined in this document.
4 Classification and marking
4.1 Types
The types of globe valves are specified as follows:
a) Type A: Straight-through globe valve whose flange connection dimensions and sealing surfaces comply with CB/T 4196—2011;
b) Type B: Right-angle globe valve whose flange connection dimensions and sealing surfaces comply with CB/T 4196—2011;
c) Type AS: Straight-through globe valve whose flange connection dimensions and sealing surfaces comply with GB/T 9124.1—2019;
d) Type BS: Right-angle globe valve whose flange connection dimensions and sealing surfaces comply with GB/T 9124.1—2019.
4.2 Basic parameters
The basic parameters of the globe valves are given in Table 1.
Table 1 — Basic parameters of globe valves
5 Requirements
5.1 Materials
5.1.1 The materials for the main parts of the globe valve shall comply with the provisions of Table 4. Production may commence only after the materials have been inspected and found to be qualified.
Table 4 — Materials for main parts of globe valves
5.1.2 For castings, at least three ladle test specimens with furnace numbers shall be provided for each heat, and the retention period shall not be less than 3 years.
5.2 Strength
The strength of the globe valve shall comply with the requirements of 4.14 in GB/T 600—2023.
5.3 Tightness
The tightness of the globe valve shall comply with the requirements of 4.15 in GB/T 600—2023.
5.4 Dimensions and dimensional tolerances
5.4.1 The wall thickness of the globe valve shall comply with the requirements of 4.2 in GB/T 600—2023, and the wall thickness tolerance shall comply with the requirements of 4.5.1 in GB/T 600—2023.
5.4.2 The dimensional tolerances of the globe valve shall comply with the requirements of 4.5 in GB/T 600—2023.
5.4.3 The structural length tolerances of Type A and Type B globe valves shall comply with the provisions of the construction drawings; the structural length tolerances of Type AS and Type BS globe valves shall comply with the requirements of GB/T 11698—2026.
5.5 Geometrical tolerances
The geometrical tolerances of the globe valve shall comply with the requirements of 4.7 in GB/T 600—2023.
5.6 Assembly
The assembly of the globe valve shall comply with the requirements of 4.10 in GB/T 600—2023.
5.7 Appearance
The appearance of the globe valve shall comply with the requirements of 4.11 in GB/T 600—2023.
5.8 Weight
The weight of the globe valve shall comply with the provisions of Table 2 and Table 3, and its positive weight deviation shall not exceed 4 % of the theoretical weight.
5.9 Marking
The marking of the globe valve shall comply with the requirements of GB/T 3032.
6 Test methods
6.1 Strength
Carried out in accordance with the provisions of 5.1.1.1 in GB/T 600—2023.
6.2 Tightness
Carried out in accordance with the provisions of 5.1.2.1 in GB/T 600—2023.
6.3 Dimensions and dimensional tolerances
Standard
GB/T 590-2026 Marine cast iron flanged stop valves (English)
GB/T 590-2026 Marine cast iron flanged stop valves 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
CCS
National Standard of the People's Republic of China
GB/T 590-2026
Marine cast iron flanged stop valves
船用法兰铸铁截止阀
Issue date: 2026-09-28 Implementation date: 2027-01-01
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
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Classification and marking
5 Requirements
6 Test methods
7 Inspection rules
8 Packaging and storage
Marine cast iron globe valves
1 Scope
This document specifies the classification and marking, requirements, test methods, inspection rules, and packaging and storage of marine cast iron globe valves (hereinafter referred to as "globe valves").
This document is applicable to the design, manufacture and acceptance of globe valves used in marine piping systems for seawater, fresh water, fuel oil and lubricating oil.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 600—2023, General technical requirements for marine piping valves
GB/T 898—1988, Double-end studs, *b*m = 1.25 *d*
GB/T 1176—2013, Cast copper and copper alloys
GB/T 1348—2019, Spheroidal graphite iron castings
GB/T 1958, Geometrical product specifications (GPS) — Geometrical tolerance — Verification
GB/T 3032, Marking of marine valves and piping accessories
GB/T 4423—2020, Copper and copper alloy drawn bars
GB/T 6170—2015, Hexagon nuts, style 1
GB/T 9124.1—2019, Steel pipe flanges — Part 1: PN series
GB/T 9439—2023, Grey iron castings
GB/T 11698—2026, Length of structural members between flanged pipe connections for marine use
CB/T 3530—1993, Handwheels for piping accessories
CB/T 3589—1994, Non-asbestos gasket and packing for marine valves
CB/T 4196—2011, Marine valve flange — Connection dimensions and sealing surfaces
JB/T 6626—2011, Polytetrafluoroethylene braided packings
QB/T 4041—2010, Polytetrafluoroethylene sheets
3 Terms and definitions
No terms and definitions are required to be defined in this document.
4 Classification and marking
4.1 Types
The types of globe valves are specified as follows:
a) Type A: Straight-through globe valve whose flange connection dimensions and sealing surfaces comply with CB/T 4196—2011;
b) Type B: Right-angle globe valve whose flange connection dimensions and sealing surfaces comply with CB/T 4196—2011;
c) Type AS: Straight-through globe valve whose flange connection dimensions and sealing surfaces comply with GB/T 9124.1—2019;
d) Type BS: Right-angle globe valve whose flange connection dimensions and sealing surfaces comply with GB/T 9124.1—2019.
4.2 Basic parameters
The basic parameters of the globe valves are given in Table 1.
Table 1 — Basic parameters of globe valves
5 Requirements
5.1 Materials
5.1.1 The materials for the main parts of the globe valve shall comply with the provisions of Table 4. Production may commence only after the materials have been inspected and found to be qualified.
Table 4 — Materials for main parts of globe valves
5.1.2 For castings, at least three ladle test specimens with furnace numbers shall be provided for each heat, and the retention period shall not be less than 3 years.
5.2 Strength
The strength of the globe valve shall comply with the requirements of 4.14 in GB/T 600—2023.
5.3 Tightness
The tightness of the globe valve shall comply with the requirements of 4.15 in GB/T 600—2023.
5.4 Dimensions and dimensional tolerances
5.4.1 The wall thickness of the globe valve shall comply with the requirements of 4.2 in GB/T 600—2023, and the wall thickness tolerance shall comply with the requirements of 4.5.1 in GB/T 600—2023.
5.4.2 The dimensional tolerances of the globe valve shall comply with the requirements of 4.5 in GB/T 600—2023.
5.4.3 The structural length tolerances of Type A and Type B globe valves shall comply with the provisions of the construction drawings; the structural length tolerances of Type AS and Type BS globe valves shall comply with the requirements of GB/T 11698—2026.
5.5 Geometrical tolerances
The geometrical tolerances of the globe valve shall comply with the requirements of 4.7 in GB/T 600—2023.
5.6 Assembly
The assembly of the globe valve shall comply with the requirements of 4.10 in GB/T 600—2023.
5.7 Appearance
The appearance of the globe valve shall comply with the requirements of 4.11 in GB/T 600—2023.
5.8 Weight
The weight of the globe valve shall comply with the provisions of Table 2 and Table 3, and its positive weight deviation shall not exceed 4 % of the theoretical weight.
5.9 Marking
The marking of the globe valve shall comply with the requirements of GB/T 3032.
6 Test methods
6.1 Strength
Carried out in accordance with the provisions of 5.1.1.1 in GB/T 600—2023.
6.2 Tightness
Carried out in accordance with the provisions of 5.1.2.1 in GB/T 600—2023.
6.3 Dimensions and dimensional tolerances
