適用標(biāo)準(zhǔn)
鋼制止回閥,API 594/API 6D,ISO 14313
溫度和壓力,ASME B16.34
結(jié)構(gòu)長(zhǎng)度,ASME B 16.10
端法蘭, ASME B 16.5
試驗(yàn)標(biāo)準(zhǔn),API 598
設(shè)計(jì)說(shuō)明
單片閥體
蝶形雙瓣旋啟式
對(duì)夾或法蘭連接
水平或垂直安裝
標(biāo)準(zhǔn)材料規(guī)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 |