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GB/T 7937-2008: Fluid power systems and components -- Connectors and associated components -- Nominal pressures
Status: Valid GB/T 7937: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 7937-2008 | English | 169 |
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Fluid power systems and components -- Connectors and associated components -- Nominal pressures
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GB/T 7937-2008
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| GB/T 7937-2002 | English | 199 |
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Fluid power systems and components -- Connectors and associated components -- Nominal pressures
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GB/T 7937-2002
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| GB/T 7937-1987 | English | 199 |
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Fluid power systems and components--Connectors and associated components--Nominal pressures
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GB/T 7937-1987
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PDF similar to GB/T 7937-2008
Basic data | Standard ID | GB/T 7937-2008 (GB/T7937-2008) | | Description (Translated English) | Fluid power systems and components -- Connectors and associated components -- Nominal pressures | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J20 | | Classification of International Standard | 23.100.40 | | Word Count Estimation | 7,778 | | Date of Issue | 2008-01-14 | | Date of Implementation | 2008-05-01 | | Older Standard (superseded by this standard) | GB/T 7937-2002 | | Quoted Standard | GB/T 2346-2003; GB/T 17446 | | Adopted Standard | ISO 4399-1995, MOD | | Regulation (derived from) | National Standard Approval Announcement 2008 No.1 (Total No.114) | | 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 pressure hydraulic and pneumatic fittings and related components. | GB/T 7937-2008: Fluid power systems and components -- Connectors and associated components -- Nominal pressures
---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.
Fluid power systems and components. Connectors and associated components. Nominal pressures
ICS 23.100.40
J20
National Standards of People's Republic of China
Replacing GB/T 7937-2002
Hydraulic and pneumatic fittings and associated components
Nominal pressures
(ISO 4399.1995, MOD)
Posted 2008-01-14
2008-05-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This revised standard adopts the International Standard ISO 4399.1995 "Fluid power systems and components Connectors and associated components Nominal pressure
Power "(in English).
This standard adopts ISO 4399.1995, the following changes made.
--- With Chapter 2 normative references in adopting international standards in place of the standard corresponding to international standards;
--- In Table 1 and related provisions, remove the pressure to "bar" as a unit of equivalent values \u200b\u200band the corresponding description;
--- In Table 1, an increase of [21MPa], 80MPa, 100MPa, 125MPa, 160MPa five pressure levels.
This standard replaces GB/T 7937-2002 "hydraulic and pneumatic fittings and associated components - Nominal pressures", compare with changes
as follows.
--- 3.1 nominal definition to read "In order to facilitate identification and indicate fittings and associated components attributable to the pressure of the series, and it refers to
Predetermined pressure value. ";
--- Table 1 in the second row, second column "63" to "6.3."
--- Increase in Table 1. [21MPa], 125MPa, 160MPa three pressure levels.
The standard proposed by China Machinery Industry Federation.
This standard by the National Standardization Technical Committee of hydraulic and pneumatic (SAC/TC3) centralized.
This standard was drafted. Beijing Machinery Industry Automation Research Institute.
The main drafters of this standard. Zhaoman Lin, Liu Xinde.
This standard replaces the standards previously issued as follows.
GB/T 7937-1997, GB/T 7937-2002.
Hydraulic and pneumatic fittings and associated components
Nominal pressures
1 Scope
This standard specifies the nominal pressure hydraulic and pneumatic fittings and associated components.
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 2346-2003 fluid power systems and components - Nominal pressures (ISO 2944.2000, MOD)
GB/T 17446 Fluid power systems and components Terminology (GB/T 17446-1998, idt ISO 5598. 1985)
3 Terms and Definitions
GB/T 17446 and established the following terms and definitions apply to this standard.
3.1
For ease of presentation and identification fittings and associated components attributable to the pressure of the series, while the value of its specified pressure.
Note. This definition is defined in GB/T 2346-2003 applied the same, and only applies to this standard.
4 units
4.1 nominal pressure rating shall be, respectively kilopascals (kPa) or megapascals (MPa) represented.
4.2 When not specified, nominal pressure gauge should be considered, namely. relative to atmospheric pressure.
4.3 In addition to the nominal specified in this standard should be GB/T 2346-2003 Select.
Nominal 5
Nominal pipe fittings and associated components shall be selected in Table 1.
Table 1 Nominal pressures megapascals
4 0.25 [21] 50 160
0.63 6.3 2563
110 31.5 80
1.6 16 [35] 100
2.5 2040125
Note. The square brackets in non-recommended value.
6 Marking explanation (to cite this standard)
Determining compliance with the standards, test reports, samples and sales documents using the following instructions. Nominal "fittings and associated components of pressure
Force in line with GB/T 7937-2008 "hydraulic and pneumatic fittings and associated components - Nominal pressures" provisions. "
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