Standard No.:	HG/T 21518-2014
English Name:	Welding neck flange manholes with hinged cover
Chinese Name:	回转盖带颈对焊法兰人孔
Chinese Classification:	G91    Chemical machinery and equipment parts
Professional Classification:	HG    Professional Standard - Chemistry
ICS Classification:	11.120.99 11.120.99    Other standards related to pharmaceutics 11.120.99
Source Content Issued by:	Ministry of Industry and Information Technology
Issued on:	2014-07-09
Implemented on:	2014-11-1
Status:	valid
Superseding:	HG/T 21518-2005 Welding neck flange manholes with hinged cover
Target Language:	English
File Format:	PDF
Word Count:	7000 words
Translation Price(USD):	210.0
Delivery:	via email in 1 business day

1 General provisions 1.0.1 This standard is formulated to standardize the design of welding neck flange manholes with hinged cover, reduce repetitive design work, ensure product quality and improve comprehensive benefits. 1.0.2 This standard is applicable to the design of steel welding neck flange manholes with hinged cover with a nominal pressure of PN16~PN63 in chemical, petrochemical plants and other similar plants. 1.0.3 In addition to this standard, the design of welding neck flange manholes with hinged cover shall also meet those specified in the relevant current national standards. 2 Structural type and size 2.0.1 The structural type of welding neck flange manholes with hinged cover shall meet the requirements of Figure 2.0.1.

1 General provisions 2 Structural type and size 3 Technical requirements 4 Mark and examples Normative standards