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GB/T 1951-2008 English PDF

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GB/T 1951-2008: Marine low pressure bronze male threaded stop valves
Status: Valid

GB/T 1951: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 1951-2008English189 Add to Cart 3 days [Need to translate] Marine low pressure bronze male threaded stop valves Valid GB/T 1951-2008
GB/T 1951-1984English199 Add to Cart 2 days [Need to translate] Marine low pressure bronze male threaded stop valves Obsolete GB/T 1951-1984

PDF similar to GB/T 1951-2008


Standard similar to GB/T 1951-2008

GB/T 589   GB/T 586   GB/T 592   GB/T 5744   GB/T 1952   GB/T 1953   

Basic data

Standard ID GB/T 1951-2008 (GB/T1951-2008)
Description (Translated English) Marine low pressure bronze male threaded stop valves
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard U52
Classification of International Standard 47.020.30
Word Count Estimation 8,890
Date of Issue 2008-10-20
Date of Implementation 2009-04-01
Older Standard (superseded by this standard) GB/T 1951-1984
Quoted Standard GB/T 600; GB/T 1176-1987; GB/T 1184-1996; GB/T 1348-1988; GB/T 1804-2000; GB/T 1958; GB/T 30323; GB/T 4423-2007; GB/T 5231-2001; CB 821; CB/T 3927
Regulation (derived from) National Standard Approval Announcement 2008 No.17 (Total No.130)
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 external thread bronze marine low pressure cut-off valve (hereinafter referred to as the cut-off valve) of classification and labeling, requirements, test methods, inspection rules, packaging and storage. This standard applies to the sea, freshwater, fuel, oil and temperature not higher than 250��C steam ship lines with a cut-off valve design, manufacture and acceptance.

GB/T 1951-2008: Marine low pressure bronze male threaded stop valves

---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.
Marine low pressure bronze male threaded stop valves ICS 47.020.30 U52 National Standards of People's Republic of China Replacing GB/T 1951-1984 Marine low pressure bronze male threaded stop valve Posted 2008-10-20 2009-04-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard replaces GB/T 1951-1984 "Marine low pressure bronze male threaded stop valve." This standard compared with GB/T 1951-1984, the main changes are as follows. --- Stem material removed 2Cr13 material; --- Added "back seal" structure; --- Increasing the wall thickness of the body specified. The standard proposed by China Shipbuilding Industry Corporation. This standard by the National Marine Machinery Standardization Technical Committee piping attachment points Technical Committee. This standard was drafted. Dalian Shipbuilding Industry Group Co., Ltd. Dalian Jinmei Valves. The main drafters of this standard. Thin Britain, Liu Xiaopeng, Qiujin Quan, MA Yulong, Liu Jun, the extension in Germany. This standard replaces the standards previously issued as follows. --- GB 1951-1980, GB/T 1951-1984. Marine low pressure bronze male threaded stop valve

1 Scope

This standard specifies the Marine low pressure bronze male threaded stop valve (hereinafter referred to as the cut-off valve) classification and marking requirements, test methods, inspection Rules, packaging and storage. This standard applies to water, fresh water, fuel, oil and temperature not higher than 250 ℃ steam ship line with shut-off valve design, manufacture and acceptance.

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 600 marine piping valves General technical requirements GB/T 1176-1987 Cast Copper Alloys conditions (neq ISO 1338. 1977) GB/T 1184-1996 shape and position tolerances without individual tolerance value (eqv ISO 2768-2. 1989) GB/T 1348-1988 ductile iron castings GB/T 1804-2000 General tolerances for linear and angular dimensions without individual tolerance tolerance (eqv ISO 2768-1. 1989) GB/T 1958 Geometrical Product Specifications (GPS) shape and position tolerance testing requirements Flag GB/T 3032 Ship pipeline accessories GB/T 4423-2007 Copper and copper alloy rod drawing GB/T 5231-2001 processing of copper and copper alloy chemical composition and shape of the product CB821 low pressure pipe nipple CB/T 3927 Marine casting wall thickness of the valve member

3 Classification and Marking

Type 3.1 Off valve type specified as follows. A Type --- straight shut-off valve; Type B --- right angle stop valve. 3.2 Basic parameters The basic parameters of shut-off valves are shown in Table 1. Table 1 Basic parameters of the shut-off valve Type Nominal pressure PN/MPa Nominal diameter DN/mm 1.6 6 to 32 3.3 Structure and size As the basic structure and the size of the valve in Figure 1, Figure 2 and Table 2 and Table 3.

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