| 详细介绍：
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
|
| 
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