Standard No.:	HG/T 21522-2014
English Name:	Plate flange manholes with davit to horizontal cover
Chinese Name:	水平吊盖板式平焊法兰人孔
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
Issued by:	Ministry of Industry and Information Technology
Issued on:	2014-07-09
Implemented on:	2014-11-1
Status:	valid
Superseding:	HG/T 21522-2005 Level of the hanging cover plate welded flange manhole
Language:	English
File Format:	PDF
Word Count:	10500 words
Price(USD):	270.00
Delivery:	via email in 1 business day

HG/T 21522-2014 Plate flange manholes with davit to horizontal cover



1 General provisions



1.0.1 This standard is formulated to standardize the design of plate flange manholes with davit to horizontal cover, reduce repetitive design work, ensure product quality and improve comprehensive benefits.



1.0.2 This standard is applicable to the design of steel plate flange manholes with davit to horizontal cover with a nominal pressure of PN6 in chemical, petrochemical plants and other similar plants.



1.0.3 In addition to this standard, the design of steel plate flange manholes with davit to horizontal cover shall also meet those specified in the relevant current national standards.



2 Structural type and size



2.0.1 The structural type of plate flange manholes with davit to horizontal cover shall meet the requirements of Figure 2.0.1.

Foreword i
1 General provisions
2 Structural type and size
3 Technical requirements
4 Marking and examples
Normative standards