制药网
详细介绍
适用标准
钢制止回阀，API 594/API 6D，ISO 14313
温度和压力，ASME B16.34
结构长度，ASME B 16.10
端法兰， ASME B 16.5
试验标准，API 598
设计说明
单片阀体
蝶形双瓣旋启式
对夹或法兰连接
水平或垂直安装
标准材料规范
| No | 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 | A216WCB | A217 WC6 | A217WC9 | A351CF8 | A351 CF8M | A351CF3 | A351 CF3M | A351 CN7M |
| 2 | Plate | WCB+ 13Cr *1 | A217 WC6+HF | A217 WC9+H F | A351 CF8 | A351 CF8M | A351 CF3 | A351 CF3M | A351 CN7M |
| 3 | Stop Pin | A276 410 | A276 410 | A276 410 | A276 304 | A276 316 | A276 304L | A276 316L | 20-Alloy |
| 4 | Back Spring | Si-Mn steel | Cr-V Steel | Cr-V Steel | A313 304 | A313 316 | Inconel 750 | Inconel 750 | Incone 1750 |
| 5 | Hinge Pin | A276 410 | A276 410 | A276 410 | A276 304 | A276 316 | A276 304L | A276 316L | 20-Alloy |
| 6 | Eyebolt | Carbon Steel | Carbon Steel | Carbon Steel | Carbon Steel+Zn | Carbon Steel+Zn | Carbon Steel+Zn | Carbon Steel+Zn | Carbon Steel+Zn |
| Seat Face | 13Cr*1 | HF | HF | NA | NA | NA | NA | NA | |
| *1 | PN≥600Class seal face will be HF | ||||||||
| Na | Intergral with vessell | ||||||||
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