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GB/T 13871.5-2015Rotary shaft lip-type seals incorporating elastomeric sealing elements -- Part 5: Identification of visual imperfections (English PDF)

密封元件为弹性体材料的旋转轴唇形密封圈第5部分: 外观缺陷的识别

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Issued by

General Administration of Quality Supervision, Inspection and Quarantine

Level / Type

National · Recommended

Issue date

December 10, 2015

Implementation date

January 1, 2017

Scope

GB/T 13871.5-2015 is the English-translated version of 密封元件为弹性体材料的旋转轴唇形密封圈第5部分: 外观缺陷的识别.

GB/T 13871.5-2015 — This Part defines and classifies typical surface imperfections that can impair the function of the seals and is intended as a convenience for purchasers and manufacturers in their discussions concerning the importance of these imperfections in different applications.

This Part describes seals utilizing elastomeric sealing elements (hereinafter referred to as seals). They are normally considered suitable for use only at low pressures (air side pressure is atmospheric pressure; liquid side pressure is higher than atmospheric pressure by 0 kPa ~ 30 kPa).

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Document preview — GB/T 13871.5-2015

National Standard of the People's Republic of China

ICS: 83.140.50; 23.100.60
Classification: J 20

Issued by: General Administration of Quality Supervision, Inspection and Quarantine

Foreword...3
Introduction...5
1 Scope...6
2 Normative references...6
3 Terms and definitions...6
4 Characteristic imperfections...6
5 Identification statement...14

Foreword

GB/T 13871 Rotary shaft lip-type seals incorporating elastomeric sealing

elements consists of 6 parts.

- Part 1. Nominal dimensions and tolerances;

- Part 2. Vocabulary;

- Part 3. Storage, Handling and Installation;

- Part 4. Performance test procedures;

- Part 5. Identification of visual imperfections;

- Part 6. Elastomeric materials - Performance requirements.

This Part is the 5th part of GB/T 13871.

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

This Part uses translation method and identically adopts ISO 6194-5.2008

Rotary-shaft lip-type seals incorporating elastomeric sealing elements - Part 5.

Identification of visual imperfections.

Versions of standard substituted by this Standard are.

- GB/T 17446-2012 Fluid power systems and components - Vocabulary

(ISO 5598.2008, IDT)

- GB/T 13871.2-2015 Rotary shaft lip-type seals incorporating elastomeric

sealing elements - Part 2. Vocabulary (ISO 6194-2.2009, MOD)

This Part makes the following editorial modifications.

- modified the first paragraph "6.1 of ISO 6194-1.2007" in Clause 1

"Foreword" as the second paragraph and directly merged the content of

6.1 in ISO 6194-1.2007 into the description; the previous second

paragraph was merged into the first paragraph;

- deleted "NOTE" of Clause 1;

- deleted "Bibliography".

This Part was proposed by China Machinery Industry Federation.

This Part shall be under the jurisdiction of National Technical Committee on

Hydropneumatic of Standardization Administration of China (SAC/TC 3).

The drafting organizations of this Part. Qingdao Beihai Sealing Technology Co.,

Ltd., Northwest Rubber and Plastics Research and Design Institute, Shanxi

Taibao Sealing Co., Ltd., Chongqing Duke High Pressure Seal Co., Ltd.,

Zhejiang Shangyu Oil Seal Manufacturing Co., Ltd., Jieyang Tiancheng Sealing

& Packing Co., Ltd., Qingdao Maolin Rubber Products Co., Ltd., Qingdao

Kaiser Sealing Industry Co., Ltd., Chengdu Shengbang Sealing Co., Ltd.,

Guangzhou Institute of Mechanical Science Co., Ltd..

Main drafters of this Part. Xu Ligang, Gao Jingru, Jia Xianbao, Du Changchun,

Fang Yuequan, Wu Kesheng, Ji Shunben, Gao Jianming, Wang Dongming, Tan

Feng.

Rotary shaft lip-type seals incorporating elastomeric

sealing elements - Part 5. Identification of visual

imperfections

1 Scope

This Part defines and classifies typical surface imperfections that can impair the

function of the seals and is intended as a convenience for purchasers and

manufacturers in their discussions concerning the importance of these

imperfections in different applications.

This Part describes seals utilizing elastomeric sealing elements (hereinafter

referred to as seals). They are normally considered suitable for use only at low

pressures (air side pressure is atmospheric pressure; liquid side pressure is

higher than atmospheric pressure by 0 kPa ~ 30 kPa).

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.

ISO 5598 Fluid power system and components - Vocabulary;

ISO 6194-2 Rotary-shaft lip-type seals incorporating elastomeric sealing

elements - Part 2. Vocabulary

3 Terms and definitions

For the purposes of this Part, the terms and definitions given in ISO 5598 and

ISO 6194-2 apply.

4 Characteristic imperfections

4.1 Definition of sealing lip critical area

See Figure 1 and Table 1.

......

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 14 pages — is available in the English PDF.

Referenced standards

Normative references

ISO 5598 · ISO 6194

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