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GB/T 9121-2010: Loose plate steel pipe flanges with weld-on collar
Status: Obsolete GB/T 9121: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 9121-2010 | English | 559 |
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Loose plate steel pipe flanges with weld-on collar
| Obsolete |
GB/T 9121-2010
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| GB/T 9121.1-2000 | English | 279 |
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Loose plate steel pipe flanges with weld-on collar with raised face
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GB/T 9121.1-2000
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| GB/T 9121.1-1988 | English | RFQ |
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Loose plate steel pipe flanges with weld-on collar with raised face for PN 1. 6MPa (16 bar)
| Obsolete |
GB/T 9121.1-1988
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PDF similar to GB/T 9121-2010
Basic data | Standard ID | GB/T 9121-2010 (GB/T9121-2010) | | Description (Translated English) | Loose plate steel pipe flanges with weld-on collar | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J15 | | Classification of International Standard | 23.040.60 | | Word Count Estimation | 14,154 | | Date of Issue | 1/14/2011 | | Date of Implementation | 10/1/2011 | | Older Standard (superseded by this standard) | GB/T 2508-1989; GB/T 9121.1-2000; GB/T 9121.2-2000; GB/T 9121.3-2000 | | Quoted Standard | GB/T 9112; GB/T 9124 | | Adopted Standard | ASME B16.5-2009, MOD; EN 1092-1-2007, MOD | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 2 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 nominal level marked with PN Loose plate welded steel pipe flange type, size, technical requirements and marking. This Standard is applicable to nominal pressure PN 2. 5 ~ PN Loose plate flat welding steel pipe flanges 40. | GB/T 9121-2010: Loose plate steel pipe flanges with weld-on collar---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.
Loose plate steel pipe flanges with weld-on collar
ICS 23.040.60
J15
National Standards of People's Republic of China
Replacing GB/T 9121.1 ~ 9121.3-2000, GB/T 2508-1989
Loose plate flat welding steel pipe flanges
Issued on. 2011-01-14
2011-10-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 9112 ~ 9124-2010 "steel pipe flanges" series Standard is a modified ASMEB16.5-2009 "pipe flanges and flanged pipe
Member (NPS⅟2 ~ NPS24) "and EN1092-1.2007" Flanges and their connecting pipes, valves, fittings and accessories, circular flange,
PN identification - Part 1. Steel flanges. " ASMEB16.5-2009 is a complete standards for Class marks flange,
EN1092-1.2007 is a complete standard PN mark on the flange. This series of standards using a combination of the above two criteria, including
Mark the relevant technical content Class flange and flange PN mark. This series of standards for a total 13 standard, this standard is one of a
standard.
This standard EN1092-1.2007 standard main difference is as follows.
--- The preparation of this standard format ASMEB16.5-2009 and EN1092-1.2007 different standards;
--- EN1092-1.2007 standard does not include two DN175 and DN225 nominal size, according to users of marine flange
Requirements, this standard PN flange marked increase of DN175 and DN225 only two male marine said flange
size.
This standard replaces GB/T 9121.1-2000 "with weld ring projecting Loose plate steel pipe flanges", GB/T 9121.2-2000 "uneven surface
Loose plate flat welding steel pipe flanges ", GB/T 9121.3-2000" tongue and groove weld flat Loose plate steel pipe flanges "and
GB/T 2508-1989 "Marine lap welding steel ring set loose steel flanges (four into bits)", compared with the original standard main changes are as follows.
--- The original three flat welding Loose plate steel pipe flanges with GB/T 2508-1989 integrated as a standard;
--- According to EN1092-1.2007 standard, increasing the O-ring sealing surface type;
--- According to EN1092-1.2007 standard, flange dimensions data were comprehensive revision;
--- Increased DN175 and DN225 only two male Marine flange nominal size;
--- Various sealing surface increases the scope of application form.
The standard proposed by China Machinery Industry Federation.
This standard by the National Standardization Technical Committee pipe accessories.
This standard was drafted. the machine Productivity Promotion Center, Zhejiang Chaoda Valve Co., Ltd., China Shipbuilding Technology and Economy
Research Institute, Jiangsu Haida Pipe Fittings Co., Ltd. Hebei Shengtian Group Bao silver high-pressure pipe flanges Limited, pipe fittings factory in Bengbu City.
The main drafters of this standard. Li Junying, to Qiu, Feng Feng, Luo Yuan hair, Li, Li Bao silver, Wangqing Yao.
This standard replaces the standards previously issued as follows.
--- GB/T 9121.1 ~ 9121.6-1988, GB/T 9121.1 ~ 9121.3-2000;
--- GB/T 2508-1989.
Loose plate flat welding steel pipe flanges
1 Scope
This standard specifies the nominal pressure PN labeled with flat welding Loose plate steel pipe flange type, size, technical requirements and marking.
This standard applies to nominal pressure flat welding Loose plate steel pipe flanges PN2.5 ~ PN40 of.
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 9112 steel pipe flanges with type parameters
GB/T 9124 steel pipe flanges
3 type and size
3.1 with flat solder ring PN labeled Loose plate steel pipe flange sealing surface type and application of nominal pressure and nominal size range Press
Specified in Table 1.
Table 1 marked with PN Loose plate flat welding steel pipe flange sealing surface type and
Applicable nominal pressure and nominal size range
Sealing surface
Type
Nominal
PN2.5 PN6 PN10 PN16 PN25 PN40
Raised face (RF) DN10 ~ DN600
Convex surface (MF) - DN10 ~ DN600
Tongue and groove (TG) - DN10 ~ DN600
O-ring face (OSG) - DN10 ~ DN600
3.2 marked with PN Loose plate flat welding steel pipe flange type shall comply with Figs. 1 to 4, the flange sealing surface dimensions shall comply
Co specified in Table 2, the other flange dimensions shall comply with the provisions of Tables 3 to 8.
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