高品質閥門專業制造商
全套工程閥門解決方案
服務熱線： 021 - 58108666
API截止閥只許介質單向流動，安裝時有方向性。它的結構 長度大于閘閥，同時流體阻力大，長期運行時，密封可靠性不強。
截止閥也叫截門，是使用最廣泛的一種閥門，它之所以廣受歡迎，是由于開閉過程中密封面之間摩擦力小，比較耐用，開啟高度不大，制造容易，維修方便，不僅適用于中 低壓，而且適用于高壓。它的閉合原理是，依靠閥杠壓力，使閥瓣密封面與閥座密封面緊密貼合，阻止介質流通。截止閥分為三類：直通式、直角式及直流式斜截止閥。
API截止閥嚴格按API標準進行設計、制造和驗收；結構緊湊、密封可靠、操作靈活；適用于石油化工、電力、冶金、紡織等工業部門。
| 設計與制造 | 結構長度 | 法蘭尺寸 | 對焊連接尺寸 | 壓力～溫度 | 試驗～檢驗 |
|---|---|---|---|---|---|
| ANSI B16.34,BS1837 | ANSI B16.10 | ANSI B16.5 | ANSI B16.25 | ANSI B16.34 | API598 |
| 公稱壓力（Lb） | 強度試驗 | 水密封試驗 | 氣密封試驗 | |||
|---|---|---|---|---|---|---|
| MPa | Lbf/in2 | MPa | Lbf/in2 | MPa | Lbf/in2 | |
| 150 | 3.1 | 450 | 2.2 | 315 | 0.5～0.7 | 60～100 |
| 300 | 7.8 | 1125 | 5.6 | 815 | ||
| 600 | 15.3 | 2225 | 11.2 | 1630 | ||
| 900 | 23.1 | 3350 | 16.8 | 2440 | ||
| 1500 | 38.4 | 5575 | 28.1 | 4080 | ||
| 2500 | 64.6 | 9367 | 47.4 | 6873 | ||
| 體、蓋、瓣 | 閥桿 | 密封面 | 墊片（環） | 填料 | 工作溫度（℃） | 適用介質 |
|---|---|---|---|---|---|---|
| WCB | 2Cr13 | 13Cr STL 本體材料 PTFE 尼龍 |
增強柔性石墨 13Cr/柔性石墨 SFB-2 08軟鋼 F304 F316 F304L F316L |
柔性石墨 增強柔性石墨 SFB/260 SFP/260 PTFE |
≤425 | 水、蒸汽、油品 |
| WC1 | 38CrMoAl 25CrMoV | ≤450 | ||||
| WC6 | ≤540 | |||||
| WC9 | ≤570 | |||||
| C 5C12 | ≤540 | |||||
| CF8 | F304 | ≤200 (非腐蝕性介質≤600) | 硝酸、醋酸、尿素 | |||
| CF3 | F316 | |||||
| CF 8M | F 304L | |||||
| CF 3M | F 316L |
| 磅級 | 規格 | L | D | t | G | C | n-Φd | W | H | WT (Kg) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 150Lb | 1/2〞 | mm | 108 | 89 | 12 | 35 | 60.5 | 4-15 | 125 | 169 | 3.8 |
| inch | 4.25 | 3.5 | 0.47 | 1.38 | 2.38 | 4-0.59 | 4.92 | 6.65 | |||
| 3/4〞 | mm | 117 | 98 | 12 | 43 | 70 | 4-15 | 125 | 180 | 4.2 | |
| inch | 4.61 | 3.86 | 0.47 | 1.69 | 2.76 | 4-0.59 | 4.92 | 7.08 | |||
| 1〞 | mm | 127 | 108 | 12 | 51 | 79.5 | 4-15 | 125 | 190 | 8 | |
| inch | 5 | 4.25 | 0.47 | 2 | 3.13 | 4-0.59 | 4.92 | 7.48 | |||
| 11/2〞 | mm | 165 | 127 | 14.3 | 73 | 98.5 | 4-16 | 180 | 347 | 13 | |
| inch | 6.5 | 5 | 0.56 | 2.87 | 3.88 | 4-0.62 | 7.09 | 13.66 | |||
| 2〞 | mm | 203 | 152 | 15.9 | 92 | 120.5 | 4-19 | 180 | 356 | 21 | |
| inch | 8.00 | 6.00 | 0.625 | 3.62 | 4.75 | 4-0.75 | 7.09 | 14 | |||
| 21/2〞 | mm | 216 | 178 | 17.5 | 105 | 139.5 | 4-19 | 240 | 381 | 30 | |
| inch | 8.5 | 7 | 0.69 | 4.12 | 5.50 | 4-0.75 | 9.45 | 15.00 | |||
| 3〞 | mm | 241 | 190 | 19.1 | 127 | 152.4 | 4-19 | 280 | 13 | 41 | |
| inch | 9.5 | 7.50 | 0.75 | 5 | 6 | 4-0.75 | 11.02 | 16.25 | |||
| 4〞 | mm | 292 | 229 | 24 | 157 | 190.5 | 8-19 | 280 | 500 | 64 | |
| inch | 11.50 | 9.00 | 0.94 | 6.19 | 7.5 | 8-0.75 | 11.02 | 19.68 | |||
| 6〞 | mm | 406 | 279 | 25.4 | 216 | 241.5 | 8-22 | 360 | 656 | 113 | |
| inch | 16 | 11.0 | 1.00 | 8.5 | 9.50 | 8-0.88 | 14.17 | 22.25 | |||
| 8〞 | mm | 495 | 343 | 29 | 270 | 298.5 | 8-22 | 450 | 660 | 190 | |
| inch | 19.5 | 13.5 | 1.12 | 10.62 | 11.75 | 8-0.88 | 17.75 | 26.00 | |||
| 磅級 | 規格 | L | D | t | G | C | n-Φd | W | H | WT(Kg) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 300Lb | 1/2〞 | mm | 152 | 95 | 15 | 35 | 66.5 | 4-15 | 125 | 190 | 4.5 |
| inch | 5.98 | 3.74 | 0.95 | 1.38 | 2.62 | 4-0.75 | 4.92 | 7.48 | |||
| 3/4〞 | mm | 178 | 117 | 16 | 43 | 82.5 | 4-19 | 125 | 212 | 8 | |
| inch | 7 | 4.61 | 0.62 | 1.69 | 3.25 | 4-0.75 | 4.92 | 8.35 | |||
| 1〞 | mm | 203 | 124 | 18 | 51 | 89 | 4-19 | 160 | 231 | 10 | |
| inch | 8 | 4.9 | 0.71 | 2 | 3.50 | 4-0.75 | 6.2 | 9.1 | |||
| 11/2〞 | mm | 229 | 156 | 20.7 | 73 | 114.5 | 4-22 | 200 | 391 | 18.5 | |
| inch | 9 | 6.12 | 0.81 | 2.87 | 4.51 | 4-0.87 | 8 | 15.43 | |||
| 2〞 | mm | 267 | 165 | 22 | 92 | 127 | 8-19 | 200 | 406 | 37 | |
| inch | 105 | 6.5 | 0.88 | 3.62 | 5 | 8-0.75 | 7.87 | 16.00 | |||
| 21/2〞 | mm | 292 | 190 | 25 | 105 | 149 | 8-22 | 240 | 457 | 50 | |
| inch | 11.5 | 7.50 | 1.00 | 4.12 | 5.88 | 8-0.88 | 9.45 | 18.00 | |||
| 3〞 | mm | 318 | 210 | 29 | 127 | 168.5 | 8-22 | 280 | 470 | 61 | |
| inch | 1250 | 8.25 | 1.12 | 5 | 6.62 | 8-0.88 | 11.02 | 18.50 | |||
| 4〞 | mm | 356 | 2.54 | 32 | 157 | 200 | 8-22 | 320 | 590 | 99 | |
| inch | 14.00 | 10.00 | 1.25 | 6.19 | 7.88 | 8-0.88 | 12.60 | 23.23 | |||
| 6〞 | mm | 444 | 318 | 37 | 216 | 270 | 12-22 | 500 | 711 | 176 | |
| inch | 17.50 | 12.50 | 1.44 | 8.5 | 10.62 | 12-0.88 | 19.68 | 28.00 | |||
| 8〞 | mm | 559 | 381 | 41 | 270 | 330 | 12-25 | 500 | 750 | 333 | |
| inch | 22.0 | 15 | 1.62 | 10.62 | 13.00 | 12-100 | 19.68 | 29.50 | |||
| 磅級 | 規格 | L | D | t | G | C | n-Φd | W | H | WT(Kg) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 600Lb | 1/2〞 | mm | 165 | 95 | 15 | 35 | 66.5 | 4-15 | 160 | 285 | 6 |
| inch | 6.5 | 3.71 | 0.59 | 1.38 | 2.62 | 4-0.75 | 6.2 | 11.22 | |||
| 3/4〞 | mm | 190 | 117.5 | 16 | 43 | 82.5 | 4-19 | 190 | 285 | 9 | |
| inch | 7.48 | 4.61 | 0.62 | 1.69 | 3.25 | 4-0.75 | 6.2 | 11.22 | |||
| 1〞 | mm | 216 | 124 | 18 | 51 | 89 | 4-19 | 160 | 313 | 12 | |
| inch | 8.5 | 4.9 | 0.71 | 2 | 3.5 | 4-0.75 | 6.2 | 12.32 | |||
| 11/2〞 | mm | 241 | 156 | 23 | 73 | 114.5 | 4-22 | 240 | 365 | 22 | |
| inch | 9.5 | 6.12 | 0.91 | 2.87 | 4.51 | 4-0.88 | 9.45 | 14.17 | |||
| 2〞 | mm | 292 | 165 | 25 | 92 | 127 | 8-19 | 240 | 444 | 39 | |
| inch | 11.50 | 6.50 | 1.00 | 3.62 | 5.00 | 8-0.75 | 9.45 | 17.50 | |||
| 21/2〞 | mm | 330 | 190 | 29 | 105 | 149 | 8-22 | 240 | 483 | 50 | |
| inch | 13 | 7.50 | 1.12 | 4.12 | 5.88 | 8-0.88 | 9.45 | 19 | |||
| 3〞 | mm | 356 | 210 | 32 | 127 | 168 | 8-22 | 280 | 533 | 68 | |
| inch | 14.00 | 8.25 | 1.25 | 5 | 6.62 | 8-0.88 | 11.02 | 21 | |||
| 4〞 | mm | 4.06 | 273 | 38.1 | 157 | 216 | 8-25 | 360 | 622 | 120 | |
| inch | 16.00 | 10.75 | 1.5 | 6.19 | 8.5 | 8-1.00 | 14.17 | 24.50 | |||
| 6〞 | mm | 495 | 356 | 47.7 | 216 | 292 | 12-29 | 500 | 800 | 220 | |
| inch | 19.50 | 14 | 1.88 | 8.5 | 11.5 | 12-1.14 | 19.68 | 31.50 | |||
| 8〞 | mm | 597 | 419 | 55.6 | 270 | 349 | 12-32 | 550 | 927 | 450 | |
| inch | 23.50 | 16.5 | 2.19 | 10.62 | 13.75 | 12-1.25 | 21.65 | 36.50 | |||
