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GB/T 34028-2017Valve stem reciprocating seals of engine and performance test method (English PDF)

发动机气门导杆往复油封及性能试验方法

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

July 12, 2017

Implementation date

February 1, 2018

Scope

GB/T 34028-2017 is the English-translated version of 发动机气门导杆往复油封及性能试验方法.

GB/T 34028-2017 is the Chinese national standard for the valve stem reciprocating seal of an engine and for its performance test method.

It specifies the basic structure, the parameter code and the marking, the requirements, the inspection rules and the provisions on marking, packaging, transport and storage of the valve guide reciprocating oil seal, which it calls the valve seal.

It applies to the valve guide reciprocating oil seals of petrol and gas engines. The basic structure of the valve seal is made of the mounting support, the lip, the skeleton and a spring, or no spring at all.

It cites GB/T 531.1-2008, GB/T 1682-2014, GB/T 1690-2010, GB/T 2828.1-2012, GB/T 2941-2006, GB/T 5721-1993 and GB/T 7759.1-2015. It carries ICS 83.140.50 and Chinese classification G43, was issued on 12 July 2017 and has applied since 1 February 2018.

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Document preview — GB/T 34028-2017

National Standard of the People's Republic of China

ICS
83.140.50
Classification
G 43

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

Contents

  • Foreword
  • 1 Scope
  • 2 Normative references
  • 3 Basic structure, parameter code and mark

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

1 Scope

This standard specifies the basic structure of the valve guide reciprocating oil seal (hereinafter referred to as "valve seal"), the parameter code and mark, to Seeking, inspection rules, signs, packaging, transportation and storage.

This standard applies to fuel and gas engine valve guide reciprocating oil seal.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this document. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 528 Rubber, vulcanized or thermoplastic - Determination of tensile stress - strain properties

GB/T 531.1-2008 vulcanized rubber or thermoplastic rubber test methods into the hardness - Part 1: Shore Hardness Tester (Shao Hardness)

GB/T 1682-2014 Rubber, vulcanized - Determination of low temperature brittleness - Single - sample method

GB/T 1690-2010 Test method for fluid resistance of vulcanized rubber or thermoplastic rubber

GB/T 2828.1-2012 Sampling procedures for inspection - Part 1 - Batch-by-lot inspection by acceptance quality limit (AQL) plan

GB/T 2941-2006 Rubber physical test methods - General procedure for the preparation and conditioning of test specimens

GB/T 3512 Vulcanized rubber or thermoplastic rubber - Accelerated aging and heat resistance tests on hot air

GB/T 5721-1993 rubber seal product marking, packaging, transport and storage of the general provisions

GB/T 7759.1-2015 Rubber, vulcanized or thermoplastic - Determination of compression set - Part 1: at room temperature and high temperature

3 Basic structure, parameter code and mark

3.1 The basic structure

3.1.1 The basic structure of the valve seal by the installation of support, lip, skeleton, spring (or no spring) composition, shown in Figure 1.

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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

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