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GB/T 589-2015Marine bronze flanged check valves (English PDF)

船用法兰青铜止回阀

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

July 3, 2015

Implementation date

October 1, 2015

Scope

GB/T 589-2015 is the English-translated version of 船用法兰青铜止回阀.

GB/T 589-2015 is the Chinese standard "Marine bronze flanged check valve".

Its scope clause reads: This Standard specifies the classification and marking, requirements, test methods, inspection rules, packaging and storage for marine bronzel flanged check valve of flange connection size and sealing surface according to GB/T 4196, GB/T 2501 (hereinafter referred to as check valve).

This Standard is applicable to the design, manufacture and acceptance of check valve for steam piping system of which the mediums are fresh water, seawater, lubricating oil, fuel and temperature does not exceed 250°C. Its clauses include classification and marking; requirements; test methods; inspection rules; packaging and storage.

It was issued by the General Administration of Quality Supervision, Inspection and Quarantine on JULY 3, 2015 and took effect on OCTOBER 1, 2015.

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Document preview — GB/T 589-2015

National Standard of the People's Republic of China

ICS: 47.020.30
Classification: U 52
Replacing: GB/T 589-1993

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Foreword3
1 Scope4
2 Normative references4
3 Classification and marking5
4 Requirements11
5 Test methods12
6 Inspection rules14
7 Packaging and storage15

Foreword

This Standard was drafted in accordance with the rules given in GB/T 1.1-2009. This Standard replaces GB/T 589-1993 Marine bronze flanged check valves.

Compared with GB/T 589-1993, the main technical modifications are as follows.

- modified marking method;

- modified processing requirements.

1 Scope

This Standard specifies the classification and marking, requirements, test methods, inspection rules, packaging and storage for marine bronzel flanged check valve of flange connection size and sealing surface according to GB/T 4196, GB/T 2501 (hereinafter referred to as check valve).

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

GB/T 600-2008, General specifications for marine piping valves and fittings

GB/T 1176-2013, Casting Copper and Copper Alloys

GB/T 1184-1996, Geometrical tolerancing--Geometrical tolerance for features without individual tolerance indications

GB/T 1804-2000, General Tolerances - Tolerances for Linear and Angular Dimensions without Individual Tolerance Indications

GB/T 1958, Geometrical product Specifications (GPS) - Geometrical tolerance - Verification prescription

GB/T 2501, Connection dimensions and mating face of marine flanges

GB/T 3032, Marks for Marine Piping Valves and Fittings

GB/T 11698, Metal valves for use in marine flanged pipe systems - Face-to-face and center-to-face dimensions

GB/T 3927, Direct-current potentiometers

CB/T 4196, Marine pipe flanges-connection dimensions and mating face reference with furnace number

4 Requirements

4.3 Strength

The check valve body strength, at 1.5 times design pressure of hydraulic pressure, shall have no leakage.

4.4 Sealability

The check valve is in the reverse state. There shall be no leakage between valve plate and valve seat when the sealing surface is reduced from 1.1 times the design pressure to 0.3 MPa.

4.5 Dimensional tolerance

4.5.1 The wall thickness of check valve shall comply with the requirements of CB/T 3927; the wall thickness tolerance shall meet requirements of 3.4 in GB/T 600-2008.

4.5.2 The unnoted linear dimensional tolerance of check valve shall meet requirements of grade m in GB/T 1804-2000.

4.5.3 The structural length tolerance of check valve shall meet requirements of GB/T 11698.

4.6 Geometric tolerance

The geometric tolerance of check valve shall meet requirements of grade H in GB/T 1184-1996.

4.7 Appearance

The check valve appearance shall meet requirements of 3.10 in GB/T 600-2008.

4.8 Mass

See Table 2, Table 3 for check valve mass. The positive deviation of its mass shall not exceed 4% of the theoretical mass.

4.9 Mark

The mark for check valve shall meet requirements of GB/T 3032.

5 Test methods

5.1 Materials

The chemical composition and mechanical properties of castings shall be carried out according to the method specified in GB/T 1176-2013. Other materials shall be inspected by means of inspection material designation and material quality certificate. The results shall meet requirements of 4.1.

5.2 Strength

The strength test method of check valve shall be carried out according to the provisions of 4.12.3 in GB/T 600-2008. The results shall meet requirements of 4.3.

5.3 Sealability

The sealability test method for check valve plate and seat shall be carried out according to the method specified in 4.13.3 of GB/T 600-2008. The results shall meet requirements of 4.4.

5.4 Size and dimensional tolerance

5.4.1 The wall thickness tolerance of check valve shall be measured by thickness gauge, caliper or ruler. The results shall meet requirements of 3.3 and 4.5.1.

5.4.2 The check valve size and linear dimension tolerance shall be measured by corresponding level of measuring tool. The results shall meet requirements of 3.3 and 4.5.2.

5.4.3 The structural length tolerance of check valve shall be measured by steel ruler or vernier caliper. The results shall meet requirements of 3.3 and 4.5.3.

5.5 Geometric tolerance

The geometric tolerance of check valve shall be measured according to the provisions of GB/T 1958. The results shall meet requirements of 4.6.

5.6 Appearance

Use visual inspection to check the check valve's appearance. The results shall meet requirements of 4.7.

5.7 Mass

Place the check valve on a weighing instrument of which the scale value is not more than 0.01 kg. The results shall meet requirements of 4.8.

5.8 Mark

Use visual inspection to check the check valve's mark. The results shall meet […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

CB/T 4196

Cited by

GB/T 13852-2009General specification of hydraulic control valves for ship

Similar standards

GB/T 595-2026|GB/T 13854-2025|GB/T 4791-2025|GB/T 42798-2023|GB/T 43124-2023|GB/T 5744-2023

Editions of GB/T 589

Edition	Title	Revision	Status
GB/T 589-2015	Marine bronze flanged check valves	current edition	Current
GB/T 589-1993	Marine bronze flanged check valves	previous edition	Superseded

This page sells the current edition, GB/T 589-2015. Earlier editions are listed for reference only.

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