| nominal diameter | nps 6～nps 20 |
| nominal pressure | class150lb～class900lb |
| medium temperature | -29℃～400℃ |
| connection method | |
| valve bonnet form | |
| body material | wcb、cf8、cf8m、4a |
| trim material | f304、f316、f51 |
| flow characteristics | |
| leakage level | vi level |
optimum material pairing—suitable for coal chemical valve hardening materials; self-cleaning structure—seat scraper design; disc spring protection design—prevents medium from entering the elastic element chamber and causing failure; two-way sealing structure—requirements for sealing grade vi; rapid opening and closing design—optimization of control attachment options; stable valve torque—high-precision machining capabilities and assembly process flow.