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GB/T 21408-2008: Glass plant, pipeline and fittings -- Pipeline and fittings of nominal bore 15 to 150mm -- Compatibility and interchangeability
Status: Obsolete
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 21408-2008 | English | 479 |
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Glass plant, pipeline and fittings -- Pipeline and fittings of nominal bore 15 to 150mm -- Compatibility and interchangeability
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GB/T 21408-2008
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Basic data | Standard ID | GB/T 21408-2008 (GB/T21408-2008) | | Description (Translated English) | Glass plant, pipeline and fittings -- Pipeline and fittings of nominal bore 15 to 150mm -- Compatibility and interchangeability | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G94 | | Classification of International Standard | 71.120; 81.040.30 | | Word Count Estimation | 12,144 | | Date of Issue | 2008-02-01 | | Date of Implementation | 2008-07-01 | | Quoted Standard | GB/T 19738-2005; HG/T 2436; ISO 3585 | | Adopted Standard | ISO 3587-1976 (2005), NEQ | | Regulation (derived from) | National Standard Approval Announcement 2008 No.2 (Total No.115) | | 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 nominal diameter of 15 mm to 150 mm borosilicate glass tubes and fittings product categories, test methods, , Specification, technical requirements for inspection rules, signs, packaging, transport, storage methods, and pipes and pipe fittings versatility and interchangeability. This standard applies to transport corrosive gas, liquid borosilicate glass tube and pipe fittings. | GB/T 21408-2008: Glass plant, pipeline and fittings -- Pipeline and fittings of nominal bore 15 to 150mm -- Compatibility and interchangeability
---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.
Glass plant, pipeline and fittings. Pipeline and fittings of nominal bore 15 to 150mm. Compatibility and interchangeability
ICS 71.120; 81.040.30
G94
National Standards of People's Republic of China
Glass equipment, pipes and fittings
15 to 150 m1 m1 m1 m1 diameter pipes and
Fittings versatility and interchangeability
(ISO 3587. 1976 (2005), NEQ)
Posted 2008-02-01
2008-07-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard and ISO 3587. 1976 (2005) "Glass equipment, pipes and fittings --- 15mm ~ 150mm diameter pipe and fittings through
Versatility and interchangeability "(in English) the degree of consistency is not equivalent.
This standard Annex A, Annex B normative appendix.
This standard and ISO 3587. 1976 (2005) compared the major amended as follows.
--- Increased product size deviation of the level of classification;
--- Increasing the main physical and mechanical properties of the product;
--- Revised Appendix B, Appendix C. deleted
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Non-metallic chemical equipment Standardization Technical Committee centralized (SAC/TC162).
This standard was drafted. Beijing Glass Instrument Factory, Tianhua Institute of Chemical Machinery and Automation.
The main drafters of this standard. Wu Wenling, Zhang Branch, Liu Bojun.
Glass equipment, pipes and fittings
15 to 150 m1 m1 m1 m1 diameter pipes and
Fittings versatility and interchangeability
1 Scope
This standard specifies the nominal diameter of 15mm ~ borosilicate glass tubes and fittings 150mm product category, size, technology
Requirements, test methods, inspection rules, marking, packaging, transportation and storage methods, and pipes and pipe fittings versatility and interchangeability.
This standard applies to transport corrosive gas, liquid borosilicate glass tube and pipe fittings (hereinafter referred to as pipes and fittings).
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/T 19738-2005 glass equipment, glass pipes and fittings assembly equipment
HG/T 2436 Glass and test methods for pressure pipe fittings
ISO 3585 borosilicate glass 3.3 performance
3 terms and phrases
Definitions The following terms and phrases apply to this standard.
3.1
Special shape of the tube end.
3.2
Between the ends of the head gasket to adjust the length of the glass.
4 Products
4.1 and fittings according to the sealing form spherical structure is divided into two categories-ring face the end face of peace.
4.2 parts-per-use features can be divided into the following categories. adjust pad, reducers, elbows, tees, crosses and valves.
5 Requirements
Dimensions and tolerances 5.1 and fittings
5.1.1 The length of the glass tube and deviation should meet the requirements of Figure 1 and Table 1.
5.1.2 pipes and fittings (except elbow) and the diameter and wall thickness deviation should meet the requirements of Figure 1 and Table 2.
5.1.3 end head of the transition zone of the tube (about 60mm ~ 80mm) may have a thickness greater than specified in Table 2.
5.1.4 straightness of glass shall not exceed 4%.
5.1.5 adjust the length of the pad should comply with Figure 2 and Table 3.
5.1.6 Reducing length of the tube and its deviation should be as defined in Figure 3 and Table 4.
5.1.7 elbow wall thickness and length of their deviations shall comply with Figure 4 and Table 5.
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