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GB/T 3739-2008: 24-degree cone connectors -- Male elbow
Status: Valid GB/T 3739: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 3739-2008 | English | 139 |
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3 days [Need to translate]
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24-degree cone connectors -- Male elbow
| Valid |
GB/T 3739-2008
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| GB/T 3739.1-1983 | English | 199 |
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2 days [Need to translate]
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Male elbow--Assembly
| Obsolete |
GB/T 3739.1-1983
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PDF similar to GB/T 3739-2008
Basic data | Standard ID | GB/T 3739-2008 (GB/T3739-2008) | | Description (Translated English) | 24-degree cone connectors -- Male elbow | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J15 | | Classification of International Standard | 21.060.60 | | Word Count Estimation | 6,680 | | Date of Issue | 2008-05-07 | | Date of Implementation | 2008-11-01 | | Older Standard (superseded by this standard) | GB/T 3739.1-1983; GB/T 3739.2-1983 | | Regulation (derived from) | National Standard Approval Announcement 2008 No.7 (Total No.120) | | 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 size of the card sets of tapered thread elbow fittings and joints body, marking and technical requirements. This standard applies to pipe outside diameter 4mm ~ 42mm, the maximum working pressure of 10MPa ~ 40MPa hydraulic fluid power and general -purpose pipeline system. | GB/T 3739-2008: 24-degree cone connectors -- Male elbow---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.
24-degree cone connectors. Male elbow
ICS 21.060.60
J15
National Standards of People's Republic of China
Replacing GB/T 3739.1-1983, GB/T 3739.2-1983
Card sets taper thread elbow fittings
Posted 2008-05-07
2008-11-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard is one bite type pipe fittings series.
This standard is GB/T 3739.1-1983 "card sets of rectangular tapered thread fittings" and GB/T 3739.2-1983 "card sets of cone snails
Amendment grain ELBOW Style ". The main amendments are as follows.
--- The two standard content integration;
--- Modified Chinese and English name;
--- Threaded end of the column increases the 55 ° sealing pipe thread (R) and 60 ° sealing pipe thread (NPT), to cancel the original standard metric taper thread
(ZM);
--- The nominal E (160) to modify the maximum working pressure of 10MPa ~ 40MPa, and is divided into LL, L and S three series, series
Product size range of adjustment has been made;
--- The joint body size wrench to forging and machining two types;
--- Adjust the size of the pipe diameter range, and revised the relevant size;
--- Reducing the parameters should be part of the manufacturer's control;
--- Cancel the weight data;
--- Cancel the marked surface roughness, surface roughness is given in GB/T 3765 "bite type pipe joint technical conditions" in.
Since the implementation of this standard replaces GB/T 3739.1-1983 and GB/T 3739.2-1983.
The standard proposed by China Machinery Industry Federation.
This standard by the National Standardization Technical Committee pipe accessories.
This standard is drafted by. The machine Productivity Promotion Center, Haiyan Pipe Manufacturing Co., Ltd., Zhejiang Huaxia Valve Co., Ltd.
Participated in the drafting of this standard. Eaton (Ningbo) fluid connector Ltd., Jiaxing Mai Site Pipe Manufacturing Co., Ltd., Jianhu special
Jia Hydraulic Fittings Co., Ltd., a high-Bo Haiyan Pipe Co., Ltd., Haiyan tube Manufacturing Co., Ltd., Jiaozuo City, has lead to the hydraulic attachment
Limited.
The main drafters of this standard. Gengzhi school, Li Weirong, Zhou Shunhua, Chenzhan Ji, Feng Feng, Tao Zhongming, Zuo Jun, Ruanhao Feng, Zhou Jianfei,
Wang Limin.
This standard replaces the standards previously issued as follows.
--- GB/T 3739.1-1983;
--- GB/T 3739.2-1983.
Card sets taper thread elbow fittings
1 Scope
This standard specifies the dimensions, marking and technical requirements card sets taper thread elbow fittings and joints of the body.
This standard applies to pipe outside diameter 4mm ~ 42mm, maximum working pressure of hydraulic fluid power and general 10MPa ~ 40MPa
Purpose pipeline system.
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 3759-2008 bite type pipe joint connector nut
GB/T 3764-2008 ferrule
GB/T 3765-2008 bite type tube fittings
3 Dimensions
Card sets of tapered pipe thread elbow joints and the joint body size should be consistent with FIG. 1, the provisions of Figure 2 and Table 1, the end of the connector body sleeve size should break
Co GB/T 3764 provisions of.
4 Mark
4.1 labeling method
Labeling method joints and ferrule connector body Straight thread elbow pipe shall comply with GB/T 3765's.
4.2 tag example
Connector Series L, the pipe diameter of 10mm, steel sleeve type taper thread elbow pipe 55 ° sealing pipe thread (R), galvanized surface treated
Connector marked.
Fittings GB/T 3739 L10/R1/4
Connector Series L, the pipe diameter of 10mm, 55 ° sealing pipe thread (R), a steel sleeve type taper thread galvanized curved surface through contact
Head body marked.
Joint body GB/T 3739 L10/R1/4
5 Technical requirements
Technical requirements according to the provisions of GB/T 3765's.
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