
主要零件和材質(zhì) Main parts and materials
序號 NO | 零件名稱 Accessor name | 材質(zhì) Material |
ASTM/API 系列 series |
1 | 閥體 Body | A216(WCB, LCB), A217(WC6, WC9), A351(CF8, CF3, CF8M, CF3M) |
2 | 螺柱 Bonnet bolt | A193, B7, B16, B8, B8M |
3 | 中墊 Gasket | 不銹鋼 Stainless steel+石墨 PTFE |
4 | 閥蓋 Bonnet | A216(WCB, LCB), A217(WC6, WC9), A351(CF8, CF3, CF8M, CF3M) |
5 | 螺母 Nut | A194, 2H, 8, 8M |
6 | 吊環(huán) Eye bolt | ASTM, A105 |
7 | 外六角螺柱 Bonnet bolt | A193, B7, B16, B8, B8M |
8 | 支架 Yoke | A216(WCB, LCB), A217(WC6, WC9), A351(CF8, CF3, CF8M, CF3M) |
9 | 圓錐銷 Pin | A276 (420, 304, 316) |
10 | 閥瓣 Wedge | A216(WCB, LCB), A217(WC6, WC9), A351(CF8, CF3, CF8M, CF3M) |
11 | 搖桿 Arm | A216(WCB, LCB), A217(WC6, WC9), A351(CF8, CF3, CF8M, CF3M) |
12 | 墊片 Gaskets | A276 (420, 304, 316) |


產(chǎn)品特征 Spericfications
適用介質(zhì):水、氣、油品、天然氣和酸堿腐蝕性介質(zhì)
適用溫度:-196~425℃
驅(qū)動方式:手動、氣動、電動等
公稱壓力:150LB~600LB
公稱通徑:2"~24"
Applicable media: water, gas, oil, gas and acid and alkali corrosive medium
Applicable temperature: -196~425℃
Driver: manual, pneumatic, electric, etc
Nominal pressure: 150LB~600LB
Nominal size: 2"~24"
技術(shù)規(guī)范 Technical specification
設(shè)計依據(jù) Design reference | ASME/API系列 ASME/API series |
設(shè)計標(biāo)準(zhǔn) Design standard | ASME B16.34 API6D BS 1868 |
結(jié)構(gòu)長度 Face to face | ASME B16.10 |
連接法蘭 End flange | ASME B16.5 |
試驗(yàn)和檢驗(yàn) Test & inspection | API 598 |
試驗(yàn)壓力 Test prssure
壓力等級 Pressure grade | 試驗(yàn)壓力 Test pressure |
公稱壓力 PN Nominal pressure | 殼體試驗(yàn) Sheil test | 正密封試驗(yàn) Sealing test | 反密封試驗(yàn) Sealing test | 氣密封試驗(yàn) Air seal test |
150LB | 3.0 | 2.2 | - | 0.6 |
300LB | 7.5 | 5.5 | - | 0.6 |
600LB | 15.0 | 11.0 | - | 0.6 |
止回閥結(jié)構(gòu)長度和外接尺寸 Main connection dimensions
150LB | 300LB | 600LB |
公稱通徑 DN | L (mm) | H (mm) | L (mm) | H (mm) | L (mm) | H (mm) |
2" | 203 | 165 | 267 | 175 | 292 | 200 |
2 1/2" | 216 | 180 | 292 | 185 | 330 | 220 |
3" | 241 | 195 | 318 | 215 | 356 | 235 |
4" | 292 | 210 | 356 | 240 | 432 | 275 |
5" | 356 | 230 | 400 | 280 | 508 | 320 |
6" | 406 | 260 | 444 | 305 | 559 | 330 |
8" | 495 | 295 | 533 | 365 | 660 | 380 |
10" | 622 | 350 | 622 | 395 | 787 | 450 |
12" | 698 | 405 | 711 | 440 | 838 | 575 |
14" | 787 | 445 | 838 | 460 | 889 | 590 |
16" | 864 | 495 | 864 | 530 | 991 | 635 |
18" | 978 | 515 | 978 | 585 | 1092 | 710 |
20" | 978 | 540 | 1016 | 615 | 1194 | 760 |
24" | 1295 | 585 | 1346 | 650 | 1397 | 838 |