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GB/T 1047-2005 (GB/T 1047-2019 Newer Version) PDF English


GB/T 1047-2005 (GB/T1047-2005, GBT 1047-2005, GBT1047-2005)
Standard IDContents [version]USDSTEP2[PDF] delivered inName of Chinese StandardStatus
GB/T 1047-2019English75 Add to Cart 0-9 seconds. Auto-delivery. Pipework components -- Definition and selection of nominal size Valid
GB/T 1047-2005English70 Add to Cart 0-9 seconds. Auto-delivery. Pipework components -- Definition and selection of DN (nominal size) Obsolete
GB/T 1047-1995English199 Add to Cart 2 days Nominal size for pipe components Obsolete
GB 1047-1970English199 Add to Cart 2 days Nominal inside diameters for pipes and pipe line accessories Obsolete
Newer version: GB/T 1047-2019     Standards related to (historical): GB/T 1047-2019

GB/T 1047-2005: PDF in English (GBT 1047-2005)

GB/T 1047-2005 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 23.040.60 J 15 Replacing GB/T 1047-1995 Pipework components - Definition and selection of DN (nominal size) (ISO 6708.1995, MOD) ISSUED ON. JANUARY 13, 2005 IMPLEMENTED ON. AUGUST 01, 2005 Issued by. General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of PRC. Table of Contents Foreword ... 3  1 Scope ... 4  2 Definition ... 4  3 DN series ... 4  Pipework components - Definition and selection of DN (nominal size) 1 Scope This standard specifies the definition and series of DN (nominal size). This standard applies to pipework components specified in the relevant standards using the DN marking. Note. Other size marking methods different from this standard can also be used, such as the pipework components of threading, press fitting, socket welding or butt welding, or the pipework components which are marked by NPS (nominal pipe size), OD (outer diameter), ID (inner diameter) or G (pipe thread size marking). 2 Definition DN. Size marking for the combination of letters and numbers for piping system components. It consists of the letter DN followed by a dimensionless integer number. This number is directly related to the feature size such as the hole diameter or outer diameter (in mm) of the end connector. Note 1. Except as otherwise provided in the relevant standards, the number after the letter DN does not represent the measured value and cannot be used for calculation purposes. Note 2. For those standards using the DN marking system, it shall give the relationship between the DN and the size of the pipework components, such as DN/OD or DN/ID. 3 DN series The preferred DN values are as follows. ......
 
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.