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GB/T 3748-2008: 24-degree cone connectors -- Bulkhead union
Status: Valid GB/T 3748: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 3748-2008 | English | 139 |
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24-degree cone connectors -- Bulkhead union
| Valid |
GB/T 3748-2008
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| GB/T 3748.1-1983 | English | 199 |
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2 days [Need to translate]
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Bulkhead union--Assembly
| Obsolete |
GB/T 3748.1-1983
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PDF similar to GB/T 3748-2008
Basic data | Standard ID | GB/T 3748-2008 (GB/T3748-2008) | | Description (Translated English) | 24-degree cone connectors -- Bulkhead union | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J15 | | Classification of International Standard | 21.060.60 | | Word Count Estimation | 6,648 | | Date of Issue | 2008-05-07 | | Date of Implementation | 2008-11-01 | | Older Standard (superseded by this standard) | GB/T 3748.1-1983; GB/T 3748.2-1983 | | Regulation (derived from) | National Standard Approval Announcement 2008 No.7 (Total No.120) | |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 card sets over the plate straight pipe joints and fittings body size, marking and technical requirements. This standard applies to the pipe diameter of 6mm ~ 42mm, the maximum working pressure of 10MPa ~ 63MPa hydraulic fluid power and general -purpose pipeline system. | GB/T 3748-2008: 24-degree cone connectors -- Bulkhead union---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. Bulkhead union
ICS 21.060.60
J15
National Standards of People's Republic of China
Replacing GB/T 3748.1-1983, GB/T 3748.2-1983
Card sets through the plate straight couplings
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.
8434-1 this standard pipe joint structure type and size ISO .2007 "first metal pipe fittings for fluid power and general use
Part 1. 24 ° compression fittings "(in English) of the relevant part of the basic agreement.
This standard is GB/T 3748.1-1983 "card sets Bulkhead fittings" and GB/T 3748.2-1983 "card sets straight wall
Revision way Connection "in. The main amendments are as follows.
--- The two standard content integration;
--- Modified Chinese and English name;
--- The nominal pressure G (250) and J (400) to modify the maximum working pressure of 10MPa ~ 63MPa, and is divided into two series L and S,
Series product size range of adjustment has been made;
--- 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 3748.1-1983 and GB/T 3748.2-1983.
The standard proposed by China Machinery Industry Federation.
This standard by the National Standardization Technical Committee pipe accessories.
This standard is drafted by. Productivity Promotion Center in the machine, particularly good Jianhu Hydraulic Fittings Co., Ltd.
Participated in the drafting of this standard. Tube Manufacturing Co., Ltd. Haiyan, Jiaxing Mai Site Pipe Manufacturing Co., Eaton (Ningbo) in fluid
Fittings Co., Ltd. Zhejiang China Valve Co., Ltd., a high-Bo Haiyan Pipe Fittings Co., Ltd., Haiyan tube Manufacturing Co., Ltd., Jiaozuo City
Lutong hydraulic accessories Limited.
The main drafters of this standard. Li Weirong, Zuo Jun, Geng Zhi school, Zhou Shunhua, Feng Feng, Tao Zhongming, Ruanhao Feng, Zhou Jianfei, Chen Zhanji,
Wang Limin.
This standard replaces the standards previously issued as follows.
--- GB/T 3748.1-1983;
--- GB/T 3748.2-1983.
Card sets through the plate straight couplings
1 Scope
This standard specifies the card sets through the plate straight pipe dimensions, marking and technical requirements of the joint and the joint body.
This standard applies to the pipe diameter of 6mm ~ 42mm, maximum working pressure of hydraulic fluid power and general 10MPa ~ 63MPa
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 3763-2008 fittings with hexagon thin nuts
GB/T 3764-2008 ferrule
GB/T 3765-2008 bite type tube fittings
3 Dimensions
Card sets through the plate straight pipe joints and the size of the joint body should be consistent with FIG. 1, the provisions of Figure 2 and Table 1, the end of the connector body sleeve size should be consistent
GB/T 3764 provisions of.
4 Mark
4.1 labeling method
Card sets through the plate-through connector and labeling methods of pipe joint body shall comply with GB/T 3765's.
4.2 tag example
Connector Series L, the pipe diameter of 10mm, the surface of galvanized steel-card sets through the plate straight couplings marked.
Fittings GB/T 3748 L10
Connector Series L, the pipe diameter of 10mm, zinc coated steel plate over the card sets through connector body marked.
Joint body GB/T 3748 L10
5 Technical requirements
Technical requirements according to the provisions of GB/T 3765's.
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