| Standard ID | YB/T 4157-2007 (YB/T4157-2007) |
| Description (Translated English) | High temperature lever shut-off butterfly valve |
| Sector / Industry | Ferrous Metallurgy Industry Standard (Recommended) |
| Classification of Chinese Standard | H99 |
| Classification of International Standard | 77.140.99 |
| Word Count Estimation | 8,814 |
| Date of Issue | 2007-01-25 |
| Date of Implementation | 2007-07-01 |
| Drafting Organization | Qinhuangdao Metallurgical Machinery Co., Ltd. |
| Administrative Organization | Metallurgy Electromechanical Standardization Technical Committee |
| Regulation (derived from) | NDRC Notice No. 7 of 2007 |
| Summary | This standard specifies the high temperature cut -link butterfly terminology and structure type, technical requirements, test methods, inspection rules, marking and packaging, storage and transportation requirements. This standard is mainly applied to the nominal diameter DN600 ~ FN3200, nominal pressure of not more than PN10, temperature not higher than 600��C, medium is air, smoke, gas and other high-temperature flange connection butterfly cut -link. |