GB/T 7937-2008 English PDF

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GB/T 7937-2008: Fluid power systems and components -- Connectors and associated components -- Nominal pressures
Status: Valid

GB/T 7937: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 7937-2008	169	Add to Cart	3 days	Fluid power systems and components -- Connectors and associated components -- Nominal pressures	Valid
GB/T 7937-2002	199	Add to Cart	2 days	Fluid power systems and components -- Connectors and associated components -- Nominal pressures	Obsolete
GB/T 7937-1987	199	Add to Cart	2 days	Fluid power systems and components--Connectors and associated components--Nominal pressures	Obsolete

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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Older Standard (superseded by this standard): GB/T 7937-2002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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