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GB 48143-2026Vapor exhaust & fire resisting check damper (English PDF)

排油烟气防火止回阀

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Issued by

SAMR; SAC

Level / Type

National · Mandatory

Issue date

August 27, 2026

Implementation date

September 1, 2027

Scope

GB 48143-2026 is the English-translated version of 排油烟气防火止回阀.

Fire-resisting check dampers for oil fume and vapour exhaust are specified in this mandatory national standard.

It covers classification, codes and models, materials, structure, appearance, dimensions and tolerances, technical requirements, inspection rules, marking, packaging, storage and transportation, and the instruction manual, and it describes the test methods.

The dampers concerned are installed on centralised kitchen oil fume exhaust ducts and centralised bathroom exhaust ducts in buildings. Damper manufacturers, ventilation and building services designers, fire protection engineers, test laboratories and inspection bodies are the people who will use it.

Issued on 27 August 2026 by the National Fire and Rescue Administration, it takes effect on 1 September 2027. As a GB standard it is mandatory in China, so products supplied for such duct systems there need to comply.

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Document preview — GB 48143-2026

National Standard of the People's Republic of China

ICS: 13.220.50
Classification: C82

Issued by: State Administration for Market Regulation; Standardization Administration of China

Foreword
1 Scope
2 Normative references
3 Terms and definitions

Foreword

GB 48143-2026 is a mandatory national standard (GB) of the People's Republic of China, issued on 27 August 2026 by the State Administration for Market Regulation and the Standardization Administration of China, with effect from 1 September 2027.

It is under the responsibility of the National Fire and Rescue Administration.

Classification: ICS 13.220.50; CCS C82.

1 Scope

Fire-resisting check dampers for oil fume and vapour exhaust are specified in this mandatory national standard. It covers classification, codes and models, materials, structure, appearance, dimensions and tolerances, technical requirements, inspection rules, marking, packaging, storage and transportation, and the instruction manual, and it describes the test methods. The dampers concerned are installed on centralised kitchen oil fume exhaust ducts and centralised bathroom exhaust ducts in buildings. Damper manufacturers, ventilation and building services designers, fire protection engineers, test laboratories and inspection bodies are the people who will use it. Issued on 27 August 2026 by the National Fire and Rescue Administration, it takes effect on 1 September 2027. As a GB standard it is mandatory in China, so products supplied for such duct systems there need to comply.

Remaining clauses in the full document

2 Normative references
3 Terms and definitions

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 18 pages — is available in the English PDF.

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