| Standard ID | HG/T 21517-2014 (HG/T21517-2014) |
| Description (Translated English) | Slip on flange manholes with hinged cover |
| Sector / Industry | Chemical Industry Industry Standard (Recommended) |
| Classification of Chinese Standard | G91 |
| Classification of International Standard | 71.120.99 |
| Word Count Estimation | 15,157 |
| Date of Issue | 7/9/2014 |
| Date of Implementation | 11/1/2014 |
| Older Standard (superseded by this standard) | HG/T 21517-2005 |
| Quoted Standard | GB/T 91; GB/T 95; HG/T 20592-2009; HG/T 20606-2009; HG/T 20607-2009; HG/T 20613-2009; HG/T 21514 |
| Adopted Standard | HG/T 21517-2005 |
| Issuing agency(ies) | Ministry of Industry and Information Technology of the People's Republic of China |
| Summary | This Standard specifies the type of rotary cover with neck flat welding flange manhole, technical conditions and markers. This Standard applies only to the chemical, petrochemical plants and other similar devices nominal pressure PN10 ~ PN16 steel swivel |