美标升降式铸钢止回阀
产品简介
详细信息
适用标准
铸钢止回阀，ASME B 16.34
温度和压力，ASME B 16.34
结构长度，ASME B 16.10 ，JIS
端法兰，ASME B 16.5，JIS
对焊端，ASME B 16.25
检验和试验，API 598
设计说明
阀体直通式
栓接阀盖
可更换阀座
水平安装
法兰或焊接端
标准材料规范
| . | Part Name | ASTM Material | |||||||
| Carbon steel | 1.25Cr-0.5Mo | 2.25Cr-1Mo | 304 Type | 316 Type | 304L Type | 316L Type | 20 Alloy | ||
| 1 | Body | A216 WCB | A217 WC6 | A217 WC9 | A351 CF8 | A351 CF8M | A351 CF3 | A351 CF3M | A351 CN7M |
| 2 | Disc | WCB 13Cr *1 | A217 WC6 HF | A217 WC9 HF | A351 CF8 | A351 CF8M | A351 CF3 | A351 CF3M | A351 CN7M |
| 3 | Spring | Si-Mn steel | Cr-V steel | Cr-V steel | A313 304 | A313 316 | Inconel 750 | Inconel 750 | Inconel 750 |
| 4 | Bonnet | A216 WCB | A217 WC6 | A217 WC9 | A351 CF8 | A351 CF8M | A351 CF3 | A351 CF3M | A351 CN7M |
| 5 | Bonnet Nut | A194 2H | A194 7 | A194 7 | A194 8 | A194 8M | A194 8 | A194 8M | A194 8M |
| 6 | Bonnet Bolt | A193 B7 | A193 B7 | A193 B16 | A193 B8 | A193 B8M | A193 B8 | A193 B8M | A193 B8M |
| 7A | Bonnet Gasket | 304 qraphite | 304 graphite | 304 graphite | 304 graphite | 316 graphite | 304L graphite | 316L graphite | 316 graphite |
| 7B | Ring Gasket | Soft steel | A182 F304 | A182 F304 | A182 F304 | A182 F316 | A182 F304L | A182 F316L | 20-Alloy |
| 8 | Plug Gasket | copper | Soft steel | Soft steel | 304 SS | 316 SS | 304L SS | 316L SS | 20 Alloy |
| 9 | Treaded Plug | A193 B7 | A193 B7 | A193 B16 | 304 SS | 316 SS | 304L SS | 316L SS | 20 Alloy |
| *1 | PN≥600 Class seal face will be HF | ||||||||
| NA | Integral with vessell | ||||||||