Ministry of Chemical Industry Document Chemical Industry Development (1993) No. 431 Notice on Issuing the Industry Standard for "Stuffing Boxes" To all provincial, autonomous region, municipality directly under the Central Government, and independently planned cities, and all relevant design units: The "Stuffing Boxes" standard organized by the Equipment Design Technology Center of the Ministry of Chemical Industry and edited by the First Design Institute of the Ministry of Chemical Industry has been approved as a chemical industry standard after review, with the number HG21537-92. It will be implemented on September 1, 1993. The original HG5-214-81, HG 5-215-81, HG 5-218-81, HG 5-219-81, and HG5-1410-81 "Stuffing Boxes" standards are invalidated. The Equipment Design Technology Center of the Ministry of Chemical Industry is responsible for the management of this standard, and the Engineering Construction Standard Editing Center of the Ministry of Chemical Industry is responsible for its publication and distribution. Ministry of Chemical Industry June 14, 1993 Industry Standard of the People's Republic of China Stuffing Box HG 21537-92 Editor: First Design Institute of Ministry of Chemical Industry Approving Department: Ministry of Chemical Industry Implementation Date: September 1, 1993 Engineering Construction Standard Editing Center of Ministry of Chemical IndustrywwW.bzxz.Net Beijing, 1995 HG 21537.1-92 21537.2—92 HG 21537.3-92 HG21537.4—92 HG 21537.5-—92 HG 21537.6—92 Appendix 1 Carbon steel stuffing box (PN0.6) Stainless steel stuffing box (PNO.6) Normal pressure carbon steel stuffing box (PN Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.