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QC/T 621.3-2013Spring band hose clamps - Part 3: Hoses and spigots for clamps (English PDF)

钢带式弹性软管夹箍第3部分：夹箍用软管和接管

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Issued by

MIIT

Level / Type

Industry · Recommended

Issue date

April 25, 2013

Implementation date

September 1, 2013

Scope

QC/T 621.3-2013 is the English-translated version of 钢带式弹性软管夹箍第3部分：夹箍用软管和接管.

QC/T 621.3-2013 is the Chinese standard "Spring band hose clamps - Part 3: Hoses and spigots for clamps". Its scope clause reads: This part specifies the dimensions and structural forms of hoses and spigots for clamps.

This part is applicable to hose/spigot connections with spring band clamps in accordance with QC/T 621.1. Its clauses include system.

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Document preview — QC/T 621.3-2013

National Standard of the People's Republic of China

ICS: 43.040

Issued by: Ministry of Industry and Information Technology of the People's Republic of China

Foreword i
1 Scope
2 Normative references
3 System
4 System mounting
Annex A (Informative) Application of clamp/hose/spigot

1 Scope

This part specifies the dimensions and structural forms of hoses and spigots for clamps.

This part is applicable to hose/spigot connections with spring band clamps in accordance with QC/T 621.1.

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.

QC/T 621.1 Spring band hose clamps - Part 1: Types, dimensions, materials

DIN 71550 Crimping for hose connections in pipelines

DIN 73379-1 Fuel hoses - Part 1: Dimensions, material, designation

DIN 73379-2 Fuel hoses - Part 2: Requirements, testing

DIN 73411-1 Coolant water lines in vehicles - Hoses and hose elbows - Part 1: Dimensions, material, designation

DIN 73411-2 Coolant water lines in vehicles - Hoses and hose elbows - Part 2: Requirements, testing

3 System

3.1 Clamp/hose/spigot

Correct functioning of the clamp/hose/spigot system is assured by the following three factors:

——clamping forces: for the sealing effect including long-time function;

——pull-off forces: to take up dynamic axial loads are to be tested under special circumstances;

——geometrical dimensions: for safe assembling.

Minimum requirements are made on the geometry of the hoses and spigots to ensure leak-proofness in the system. To attain these minimum requirements, the dimensions, tolerances, mould offset, parting edge and waviness of the spigot and hose must be co-ordinated with each other.

Selection of the spigot form is dependent on the material and production procedure for the spigot.

......
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

QC/T 621.1Spring band hose clamps - Part 1: Types, dimensions and materials

DIN 71550 · DIN 73379-1 · DIN 73379-2 · DIN 73411-1 · DIN 73411-2

Cited by

QC/T 621.1-2013Spring band hose clamps - Part 1: Types, dimensions and materials

Similar standards

QC/T 621.1-2013|QC/T 621.2-2013|QC/T 931-2013|GB/T 3683-2023|GB/T 10544-2022|GB/T 24146-2022

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