|
美标法兰蝶阀适用标准
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
美标法兰蝶阀设计说明
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 
美标法兰蝶阀标准材料规范 | 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-WCB | A216-WCB | A216-WCB | A216-WCB
|
|
