GB/T 26468-2011 English PDF

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GB/T 26468-2011: Generic specification for online leak sealing clamps of pressure equipment
Status: Valid

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GB/T 26468-2011	789	Add to Cart	6 days	Generic specification for online leak sealing clamps of pressure equipment	Valid

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Basic data

Standard ID: GB/T 26468-2011 (GB/T26468-2011)
Description (Translated English): Generic specification for online leak sealing clamps of pressure equipment
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J74
Classification of International Standard: 23.020.30
Word Count Estimation: 34,389
Date of Issue: 2011-05-12
Date of Implementation: 2011-12-01
Quoted Standard: GB 150; GB/T 26467-2011
Regulation (derived from): Announcement of Newly Approved National Standards No. 6 of 2011
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the seal with pressure clamps (hereinafter referred to as " fixture ") design criteria, fixture design, material selection, fixture calculations, seal design, injection agent pore structure and fixture production. This standard applies to pressure equipment with pressure seal leaking state fixture design and production. Atmospheric state device leakage with pressure seal fixture design and production, may refer to this standard.

GB/T 26468-2011: Generic specification for online leak sealing clamps of pressure equipment

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Generic specification for online leaksealing clamps of pressure equipment ICS 23.020.30 J74 National Standards of People's Republic of China Pressure Equipment Sealing fixture design specifications Issued on. 2011-05-12 2011-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Introduction Ⅲ Introduction Ⅳ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 Symbol 3 5 4 fixture design guidelines 6 fixture design 4 7 7 Material Selection Calculation jig 7 8 9 9 Fixture Seal Design 10 hole injection agent structure 9 11 production jig 10 Appendix A (informative) Variation fixture structure 11 Annex B (informative) clamp to enhance the sealing structure 21

Foreword

The Standard Appendix A, Appendix B is an informative annex. This standard by the National Standardization Technical Committee of the boiler pressure vessel (SAC/TC262) and focal points. This standard is drafted by. Tianjin Xiangyue Sealing Material Co., Ltd. Participated in the drafting of this standard. Jilin Institute of Chemical Sealing Center, Chemical Engineering, Tianjin University, Tianjin GunnerYS Co., Ltd. have manufactured seals Ltd., Gansu Circle plugging technology development company, Hefei General Machinery Research Institute. The main drafters of this standard. Hu Yiwei, far Zhao Qing, Zhao Zhongxiang, Wang rose, Kuang Jian Zhao, segment into the military.

Introduction

With pressure sealing technology to eliminate the process of industrial production means equipment, flanges, pipe, valve leakage inspection and maintenance techniques. The technology adaptation Leakage of medium pressure, temperature and chemical properties of a wide range, has been widely in petroleum, chemical, metallurgy, medicine, nuclear power, thermal power and other industries use. In order to regulate pressure sealing technology in production applications, to improve the level of Sealing fixture design, safety, reliability and sealing, perfect Pressure seal technology management, especially the preparation of standards. Given the current level of scientific research and other work by domestic and foreign Novelty, special fixtures for Sealing stiffness and thickness calculation purposes Before not yet developed a convincing formula, although the fixture has been stress value and distribution by internal pressure after the test and Analysis, but is not yet fully applicable to the establishment of a clamp stiffness and thickness calculation formula. Only on the basis approximating the stress state and the "Pressure Vessel Safety Full technology supervision order "in the corresponding provisions, references GB 150" related formula steel pressure vessel ", the individual parameters and formulas Number, according to the pressure sealing technique practical experience to be amended. Pressure Equipment Sealing fixture design specifications

1 Scope

This standard specifies design criteria Sealing jig (hereinafter referred to as "jig"), the fixture design, material selection, fixtures computing, dense Seal design, injection agent pore structure and fixture production. This standard applies to equipment leaks under pressure status Sealing fixture design and production. Under pressure equipment with state leakage pressure sealing clamp Design and production tool, you can refer to this standard.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB 150 steel pressure vessels GB/T 26467-2011 Sealing Pressure Equipment Technical Specifications

3 Terms and Definitions

The following terms and definitions apply to this standard. 3.1 Fixture clamp Installed outside the sealed cavity formed leakage defect site, provide strength and rigidity to ensure the metal member. 3.2 Jig base dimension D0 nominalclampdiameter Fixtures and equipment consistent with the size of the wall. Flange clamp reference leak size equal to the outer diameter of the flange, pipe clamp base dimension equal to the outer diameter of the pipe section leak. 3.3 Jig linear expansion clampthermalexpansion When the temperature changes, the size of the reference jig increments. 3.4 Sealing pressure sealingpressure Action to achieve an effective seal at the lowest pressure leakage defect site unit effective area. 3.5 Fixture design pressure P designpressureofclamp In the inner wall of the jig maximum pressure is generally preferable to leak system working pressure and the correction value and. 3.6 Injecting sealants pressure Pp injectingpressofinjectingsealants Press sealing work required in a closed cavity injecting sealants squeeze pressure. 3.7 Sealed cavity closedowncavity Can effectively cover the leakage defects, injecting sealants accommodate specific space. ......

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