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GB/T 13403-2023: Gaskets for large-diameter steel pipe flanges
Status: Valid GB/T 13403: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 13403-2023 | English | 499 |
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Gaskets for large-diameter steel pipe flanges
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GB/T 13403-2023
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| GB/T 13403-2008 | English | 639 |
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Gaskets for large-diameter steel pipe flanges
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GB/T 13403-2008
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| GB/T 13403-1992 | English | 439 |
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Gaskets for large-diameter cabon steel pipe flanges
| Obsolete |
GB/T 13403-1992
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PDF similar to GB/T 13403-2023
Basic data | Standard ID | GB/T 13403-2023 (GB/T13403-2023) | | Description (Translated English) | Gaskets for large-diameter steel pipe flanges | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J15 | | Classification of International Standard | 23.040.60 | | Word Count Estimation | 26,239 | | Date of Issue | 2023-09-07 | | Date of Implementation | 2024-04-01 | | Older Standard (superseded by this standard) | GB/T 13403-2008 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 13403-2023: Gaskets for large-diameter steel pipe flanges---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.
ICS 23.040.60
CCSJ15
National Standards of People's Republic of China
Replace GB/T 13403-2008
Gaskets for large diameter steel pipe flanges
Published on 2023-09-07
2024-04-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Table of contents
Preface III
1 Scope 1
2 Normative reference documents 1
3 Terms and Definitions 1
4 symbols 1
5 Requirement 2
5.1 Types and dimensions 2
5.2 Performance and dimensional limit deviations16
6 Inspection 18
6.1 General 18
6.2 Sampling and batching 18
6.3 Inspection categories and items18
6.4 Inspection methods and judgment rules 18
7 Marks and emblems 18
8 Packaging, transportation and storage19
8.1 Packaging 19
8.2 Transport and storage19
Reference 20
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents"
Drafting.
This document replaces GB/T 13403-2008 "Gaskets for Large Diameter Steel Pipe Flanges". Compared with GB/T 13403-2008, except for the structure
In addition to adjustments and editorial changes, the main technical changes are as follows.
a) Added metal toothed combination gaskets and related requirements (see Chapter 1, Chapter 4, 5.1.4, 5.2.4, Chapter 6 and Chapter 7);
b) Added instructions for the size and type selection of the "locating ring type" gasket (see Table 1~Table 2);
c) Increased the dimensions of non-metallic flat gaskets and flexible graphite composite reinforced gaskets for B series flange Class 75 (see Table 4 and Table 12);
d) Changed the dimensions of non-metallic flat gaskets, metal corrugated composite gaskets, and flexible graphite composite reinforced gaskets (see Table 3 to Table 8,
Table 11 ~ Table 12, Table 3 ~ Table 10 of the.2008 version);
e) Changed the dimensional limit deviation of gaskets (see Table 13~Table 15, Table 17, Table 11~Table 14 of the.2008 version);
f) Added dimensional limit deviation requirements for non-metallic flat gaskets of rubber sheets (see Table 14);
g) Added requirements for product transportation and storage (see 8.2.3).
Please note that some content in this document may be subject to patents. The publisher of this document assumes no responsibility for identifying patents.
This document is proposed by China Machinery Industry Federation.
This document is under the jurisdiction of the National Technical Committee on Standardization of Pipe Accessories (SAC/TC237).
This document was drafted by. Ningbo Tiansheng Seals Co., Ltd., Zhongji Productivity Promotion Center Co., Ltd., Zhejiang Cathay Xiaoxing Sealing Materials
Materials Co., Ltd., Cixi Hengli Sealing Materials Co., Ltd., Ningbo Xinyuan Industrial Group Co., Ltd., Guangzhou Dongshan Southern Seals
Co., Ltd., Baoyi Group Co., Ltd., PetroChina East China Design Institute Co., Ltd.
The main drafters of this document. Qiu Kuanheng, Feng Feng, Zhang Jiahong, Li Xinggen, Xu Shaohuan, Lin Jianhong, Wu Kaijun, Zhang Xiaozhong, Liu Hongfu,
Luo Wenjun.
This document was first published in.1992, revised for the first time in.2008, and this is the second revision.
Gaskets for large diameter steel pipe flanges
1 Scope
This document specifies the requirements for gaskets, inspection, marking and marking as well as packaging, transportation and storage of large diameter steel pipe flanges.
This document is applicable to large diameter steel pipe flanges of DN650 (NPS26) ~ DN1500 (NPS60), Class150 ~ Class900
Use spiral wound gaskets, metal corrugated composite gaskets (hereinafter referred to as corrugated gaskets), metal toothed combination gaskets (hereinafter referred to as toothed gaskets) and
Class75~Class300 non-metallic flat gaskets and flexible graphite composite reinforced gaskets (hereinafter referred to as reinforced gaskets).
2 Normative reference documents
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations
For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to
this document.
GB/T 4622.2 Wound gaskets for pipe flanges Part 2.Class series
GB/T 5574 Industrial rubber sheet
GB/T 9126.2 Non-metallic flat gaskets for pipe flanges Part 2.Class series
GB/T 19066.2 Metal corrugated composite gaskets for pipe flanges Part 2.Class series
GB/T 19675.2 Flexible graphite composite reinforced gaskets for pipe flanges Part 2.Class series
GB/T 39245.2 Metal toothed combination gaskets for pipe flanges Part 2.Class series
3 Terms and definitions
There are no terms or definitions to be defined in this document.
4 symbols
The following symbols apply to this document.
b. Width of positioning ear of corrugated gasket, unit is millimeter (mm)
c. Reinforced gasket (metal) hemming width, unit is millimeter (mm)
D. Non-metallic flat gasket outer diameter/reinforced gasket outer diameter/corrugated gasket positioning lug outer diameter, unit is millimeter (mm)
D1.Inner diameter of inner ring of spiral wound gasket, unit is millimeter (mm)
D2.Inner diameter of spiral wound gasket sealing element/inner diameter of metal skeleton of corrugated gasket/inner diameter of metal core of toothed gasket, unit is millimeter (mm)
D3.The outer diameter of the spiral wound gasket sealing element (the inner diameter of the positioning ring)/the outer diameter of the metal skeleton of the corrugated gasket/the outer diameter of the metal core of the toothed gasket, unit
in millimeters (mm)
D4.The outer diameter of the wound gasket positioning ring/the outer diameter of the corrugated gasket positioning ring/the outer diameter of the toothed gasket movable positioning ring, in millimeters (mm)
d. Inner diameter of non-metallic flat gasket/inner diameter of reinforced gasket, in millimeters (mm)
K. Center distance of corrugated gasket positioning lugs (diameter of center circle of flange bolt hole), unit is millimeter (mm)
L. Corrugated gasket positioning ear aperture (flange bolt hole aperture), unit is millimeter (mm)
T. Thickness of wound gasket sealing element/thickness of non-metallic flat gasket/overall thickness of corrugated gasket/overall thickness of toothed gasket/reinforcement pad
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