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GB/T 47264-2026Aerospace - General specification for lightweight quick-release clamp assemblies for air ducts (English PDF)

航空航天　空气导管轻型快卸卡箍组件通用规范

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

March 31, 2026

Implementation date

July 1, 2026

Scope

GB/T 47264-2026 is the English-translated version of 航空航天　空气导管轻型快卸卡箍组件通用规范.

GB/T 47264-2026 is the Chinese standard "Aerospace - General specification for lightweight quick-release clamp assemblies for air ducts".

Its scope clause reads: This document specifies the classification, technical requirements, inspection rules, marking, and packaging of lightweight quick-release clamp assemblies for air ducts in the aerospace field.

The section on transportation and storage describes the corresponding experimental methods. This document applies to the design and manufacture of lightweight quick-release clamp assemblies for air ducts in the aerospace field (hereinafter referred to as "quick-release clamp assemblies"). Testing, inspection and delivery. Its clauses include terms and definitions.

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Document preview — GB/T 47264-2026

National Standard of the People's Republic of China

ICS: 49.035
Classification: V 21

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

Preface
1.Scope
2 Normative References
3.Terms and Definitions
4.Classification 3.
4.1 Classified by structural form
4.2 Classified by material
5 Technical Requirements
5.1 Dimensions
5.2 Weight
5.3 Appearance Quality
5.4 Leakage at ambient temperature
5.5 High-temperature leakage
5.6 Temperature and pressure resistance at normal operating temperature
5.7 High temperature and pressure resistance
5.8 Angle deviation
5.9 Torsional moment
5.10 Compression Load
5.11 Combined Load
5.12 Vibration
5.13 Thermal shock
5.14 Repeated Assembly
5.15 Pressure Cycle
5.16 Combined load cycle
5.17 Explosion at room temperature
5.18 High temperature blasting
5.19 Clamp strength
6.Test Methods
6.1 Size
6.2 Weight
6.3 Appearance quality
6.4 Leakage at room temperature.
6.5 High-temperature leakage.
6.6 11°C pressure resistance at room temperature
6.7 High temperature and pressure resistance
6.8 Angle deviation
6.9 Torsional moment
6.10 Compression load
6.11 Combined Load
6.12 Vibration
6.13 Thermal shock
6.14 Repeated assembly
6.15 Pressure Cycle
6.16 Combined Load Cycle
6.17 Explosion at room temperature
6.18 High temperature blasting
6.19 Clamp strength
7.Inspection Rule
7.1 Inspection Classification
7.2 Inspection Conditions
7.3 Identification and Testing
7.4 Quality Consistency Inspection
8 Mark
9 Packaging, Transportation and Storage
9.1 Packaging
9.2 Transportation
9.3 Storage
Appendix A (Normative) Dimension Data Table
Appendix B (Normative) Performance Index Data Table

1 Scope

This document specifies the classification, technical requirements, inspection rules, marking, and packaging of lightweight quick-release clamp assemblies for air ducts in the aerospace field.

The section on transportation and storage describes the corresponding experimental methods.

This document applies to the design and manufacture of lightweight quick-release clamp assemblies for air ducts in the aerospace field (hereinafter referred to as "quick-release clamp assemblies").

Testing, inspection and delivery.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

GB/T 191 Pictorial Symbols for Packaging and Storage

GB/T 1220 Stainless Steel Bars

GB/T 1804 General tolerances - Tolerances for linear and angular dimensions without specified tolerances

GB/T 2828.1 Sampling Procedures for Inspection by Attributes - Part 1.Sampling Schemes Retrieved by Acceptable Quality Limit (AQL) for Lot-by-Lot Inspection

GB/T 2965 Titanium and Titanium Alloy Rods

GB/T 3280 Stainless steel cold-rolled sheet and strip

GB/T 3621 Titanium and Titanium Alloy Plates

GB/T 14992 Classification and Grades of High-Temperature Alloys and Intermetallic Compounds

GB/T 14994 High-Temperature Alloy Cold-Drawn Bars

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1 Quick-release clamps

Clamps used to enable quick connection and disassembly of conduit end flanges.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 31 pages — is available in the English PDF.

Referenced standards

Normative references

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