钢制蝶阀，API 609，MSS SP-67
温度和压力，ASME B16.34
结构长度，API 609
端法兰， ASME B 16.5
试验标准，API 598
耐火标准，API-607
设计说明
密封结构：软密封，多层次硬密封，弹性硬密封，防火软密封
制动器操作
ISO 5211 衬垫
连接：法兰，对焊，对夹，凸耳对夹
操作方式：手动，涡轮，电动，气动，液动
偏心结构，中线结构，单偏心，双偏心，三偏心结构
标准材料规范
| NO. | Part Name | ASTM Material | |||||
| Carbon steel | 304 Type | 316Type | 304LType | 316LType | Alloy 20 | ||
| 1 | Body | A216-WCB | A315-CF8 | A315-CF8M | A315-CF3 | A315-CF3M | A315-CN7M |
| 2 | Stem | A182 F6a | A182 F304 | A182 F316 | A182 F304L | A182 F316L | Alloy 20 |
| 3 | Disc | A216-WCB | A315-CF8 | A315-CF8M | A315-CF3 | A315-CF3M | A315-CN7M |
| 4 | Hinge pin | A276-410 | A276-304 | A276-316 | A276-304L | A276-316 | Alloy 20 |
| 5 | Bolt | A193-B7 | A193-B8 | A193-B8M | A193-B8 | A193-B8M | Alloy 20 |
| 6 | Retaining ring | A105 | A182-F304 | A182-F316 | A182-F304L | A182-F316 | Alloy 20 |
| 7 | Seat ring | Graphite+ 304 | Graphite+ 304 | Graphite+ 316 | Graphite+ 304L | Graphite+ 316L | Graphite+ Alloy 20 |
| 8 | Bushing | Bronze | 304+PTFE | 316+PTFE | 304L+PTFE | 316L+PTFE | Alloy 20+PTFE |
| 9 | Packing | Graphite | PTFE | PTFE | PTFE | PTFE | PTFE |
| 10 | Yoke | A216-WCB | A216-WCB | A216 | |||
