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GB/T 27891-2011 English PDF

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GB/T 27891-2011: Carbon steel press-fittings
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PDF similar to GB/T 27891-2011


Standard similar to GB/T 27891-2011

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Basic data

Standard ID GB/T 27891-2011 (GB/T27891-2011)
Description (Translated English) Carbon steel press-fittings
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard U55
Classification of International Standard 47.020.30
Word Count Estimation 34,323
Date of Issue 2011-12-30
Date of Implementation 2012-06-01
Quoted Standard GB/T 191; GB/T 528; GB/T 531; GB/T 700-2006; GB/T 1682-1994; GB/T 1685; GB/T 1690; GB/T 1804-2000; GB/T 3091-2008; GB/T 3512; GB/T 5720; GB/T 5721; GB/T 7306.1; GB/T 7759; GB/T 7762; GB/T 10125-1997; GB/T 12829; GB/T 13912-2002; GB/T 15256-1994; CB/Z 343-2005
Regulation (derived from) Announcement of Newly Approved National Standards No. 23 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 deals with the thin-walled carbon steel pipe (hereinafter referred to as steel) attached board compression fittings terminology, classification and marking, requirements, test methods, inspection rules, marking, packaging, transport and storage. This standard applies to the design pressure of not more than 1. 6MPa, the nominal size of the fire is not greater than DN100 pipeline and medium temperature not greater than 110��C heating, air and gas piping with pipe fittings such as steel design, manufacture and acceptance.

GB/T 27891-2011: Carbon steel press-fittings

---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.
Carbon steel press-fittings ICS 47.020.30 U55 National Standards of People's Republic of China Steel compression fittings Issued on. 2011-12-30 2012-06-01 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 Classification and mark 2 Category 4.1 member, type and code 2 4.2 Basic parameters 2 4.3 Structure and basic dimensions 2 4.4 Product labeling 11 5 requires 12 5.1 Materials 12 5.2 Appearance 12 Dimensional tolerances 12 5.3 13 5.4 Strength 5.5 13 tightness 5.6 burst pressure 13 13 5.7 connectivity 5.8 13 surface corrosion 5.9 Installation 13 6 Test methods 13 6.1 Materials 13 13 6.2 Appearance Dimensional tolerances 13 6.3 14 6.4 Strength 6.5 14 tightness 6.6 burst pressure 14 14 6.7 connectivity 7 Inspection rules 17 7.1 Inspection classification 17 17 7.2 Type inspection 7.3 factory inspection 18 8 signs, packaging, transportation and storage 19 8.1 Marking 19 8.2 Packaging 19 8.3 Transport 19 8.4 Storage 19 Appendix A (normative) pipe connecting pipe 20 A.1 type and size 20 A.2 material 20 A.3 Other 20 Appendix B (normative) O-ring fittings 21 B.1 Scope 21 B.2 type and size 21 B.3 Requirements 22 B.4 Test Method 24 B.5 Inspection Rules 24 B.6 signs, packaging, transportation and storage 25 Annex C (informative) Installation of steel pipes and pipe fittings 26 C.1 Scope 26 C.2 structural principle 26 C.3 broken pipe 26 C.4 connection preparing 26 C.5 compression connector 27 After C.6 compression test 27

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. The standard proposed by China State Shipbuilding Corporation. This standard by the National Marine Machinery Standardization Technical Committee Piping Accessories Technical Committee (SAC/TC137/SC3) centralized. This standard was drafted. Wuxi Jinyang pipeline Accessories Co., Ltd., China Shipbuilding Technology and Economy Research Institute. The main drafters of this standard. Wang Ximing, Yuan Xuefeng, Sun Jing-ming, Shen Feng, Luo Yuan hair, Huda Jun, Pu Weidong, Hu Guodong.

Introduction

Performance requirements and test methods given in this standard, with DVGW W534.1995 "drinking water installations in the fittings and connections" in the The content of the basic regulations. Steel compression fittings

1 Scope

This standard specifies the compression type fittings (hereinafter referred to as the tube), the term thin-walled carbon steel pipe (hereinafter referred to as steel) connected with the classification Marks, requirements, test methods, inspection rules, marking, packaging, transportation and storage. This standard applies to the design pressure is less than 1.6MPa, nominal size no larger than DN100 fire lines and medium temperature no greater than Heat 110 ℃, the air and gas pipes and other steel pipe pieces of the design, manufacture and acceptance.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 191 Packaging - Pictorial signs GB/T 528 Determination of vulcanized rubber or thermoplastic rubber tensile stress-strain properties GB/T 531 pocket rubber hardness indentation hardness test methods GB/T 700-2006 carbon structural steel GB/T 1682-1994 Determination of vulcanized rubber low temperature brittleness Single Specimen GB/T 1685 vulcanized rubber or thermoplastic rubber at room temperature and high temperature compression stress relaxation measurement GB/T 1690 vulcanized rubber or thermoplastic rubber Test method for resistance to liquids GB/T 1804-2000 General tolerances Tolerances for linear and angular dimensions without individual tolerance GB/T 3091-2008 low pressure liquid delivery welded steel pipe GB/T 3512 vulcanized rubber or thermoplastic rubber hot air and heat accelerated aging test GB/T 5720 O-shaped rubber seals - Test methods GB/T 5721 rubber seal products logo, packaging, transportation and storage of general provisions Part 1 GB/T 7306.1 55 ° sealing pipe thread. inner cylindrical thread and taper external thread GB/T 7759 vulcanized rubber, thermoplastic rubber at room temperature, high and low temperature compression set determination GB/T 7762 vulcanized rubber or thermoplastic rubber resistant to ozone cracking static tensile test method GB/T 10125-1997 Corrosion tests in artificial atmospheres - salt spray test Determination of strength GB/T 12829 vulcanized rubber or thermoplastic rubber small sample (sample Delft) Tear GB/T 13912-2002 Metallic coatings Steel parts hot-dip galvanized layer of technical requirements and test methods GB/T 15256-1994 Determination of vulcanized rubber low temperature brittleness (multiple test piece method) CB/Z343-2005 Marine Accessories HDG

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Compression connection pressjoint Socket fittings to connect pipes with special seals, with a special tool clamping nozzle into the sky a connector sealing and securing action the way.

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