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PQ340F法蘭側(cè)裝偏心半球閥產(chǎn)品詳情
一，偏心半球閥具有以下優(yōu)點：
1．流體阻力小，其阻力系數(shù)與同長度的管段相等。
2．結(jié)構(gòu)簡單、體積小、重量輕。
3．緊密可靠，目前球閥的密封面材料廣泛使用塑料、密封性好，在真空系統(tǒng)中也已廣泛使用。
4．操作方便，開閉迅速，從全開到全關(guān)只要旋轉(zhuǎn)90°，便于遠距離的控制。
5．維修方便，球閥結(jié)構(gòu)簡單，密封圈一般都是活動的，拆卸更換都比較方便。
6．在全開或全閉時，球體和閥座的密封面與介質(zhì)隔離，介質(zhì)通過時，不會引起閥門密封面的侵蝕。
7．適用范圍廣，通徑從小到幾毫米，大到幾米，從高真空至高壓力都可應(yīng)用。
PQ340F法蘭側(cè)裝偏心半球閥實驗壓力 單位：MPa
| 公稱壓力 Nominal pressures | 常溫工作壓力 The maximum working pressure at room temperature | 殼體實驗壓力 Shells test pressure | 氣密封試驗壓力 Gas seal testing pressure | 高壓密封實驗壓力 High-pressure sealing test pressure |
| 1.6 | 1.6 | 2.4 | 0.6 | 1.76 |
| 2.5 | 2.5 | 3.8 | 0.6 | 2.75 |
| 4.0 | 4.0 | 6.0 | 0.6 | 4.4 |
| 6.4 | 6.4 | 9.6 | 0.6 | 7.1 |
| Class150 | 2.0 | 3.0 | 0.6 | 2.2 |
| Class300 | 5.0 | 7.5 | 0.6 | 5.5 |
Q340F法蘭側(cè)裝偏心半球閥使用范圍
| 殼體材料 Shells materials | 閥座材料 Valve seats materials | 適作溫度 applicabletemperature | 適用介質(zhì) applicable medium |
| 碳鋼C型 C-type carbon steel | PTFE+不銹鋼 PTFE+ stainless steel | ≤150℃ | 水、蒸汽 油品等 water ,the steam, the oil quality and so on |
| 不銹鋼 stainless steel | ≤250℃ | ||
| 鉻鎳鈦鋼P型 chromium nickel titanium steel P | PTFE+不銹鋼 PTFE+ stainless steel | ≤150℃ | 硝酸類 niter acids |
| 不銹鋼 stainless steel | ≤200℃ | ||
| 鉻鎳鉬鈦鋼P型 chromium nickel titanium steel P | PTFE+不銹鋼 PTFE+ stainless steel | ≤150℃ | 醋酸類 vinegar acids |
| 不銹鋼 stainless steel | ≤200℃ | ||
| 鉻鎳鉬鈦鋼I型 chromium nickel titanium steel I | 本體+硬質(zhì)合金 main bodies + hard alloy | ≤550℃ | 蒸汽、冶 煉、能源 steam, smelting the energy |
PQ340F法蘭側(cè)裝偏心半球閥主要零件材料 major parts materials
| 閥體、閥蓋 Valves bodies the valve cover | GB | WCB | ZG1Cr18Ni9Ti | ZG0Cr18Ni12MoTi | ZG15Cr1Mo1v | |||
| ASTM | WCB | CF8 | CF8M | WC9 | ||||
| 球體 spheroids | GB | ZG2Cr13 | ZG1Cr18Ni9Ti/ 表面特殊處理 surfaces special handling | ZG0Cr18Ni12MoTi 表面特殊處理 surfaces special handling | ZG15Cr1Mo1v 表面特殊處理 surfaces special handling | |||
| ASTM | CA15 | CF8+HF | CF8+HF | WC9+HF | ||||
| 閥桿 valve stem | GB | 2Cr13 | 1Cr18Ni9Ti | 0Cr18Ni12MoTi | 25Cr2Mo2v | |||
| ASTM | 420 | 304 | 316 | F22a | ||||
| 閥座 valve seats | GB | PTFE | 2Cr13 | PTFE | 1Cr18Ni9Ti | PTFE | 0Cr18Ni12MoTi | D517 |
| ASTM | PTFE | 420 | PTFE | 304 | PTFE | 316 | HF | |
| 填料 packing | GB | PTFE | 柔性石墨 flexible graphite | PTFE | 柔性石墨 flexible graphite | PTFE | 柔性石墨 flexible graphite | 柔性石墨 flexible graphite |
| ASTM | PTFE | 柔性石墨 flexiblegraphite | PTFE | 柔性石墨 flexible graphite | PTFE | 柔性石墨 flexible graphite | 柔性石墨 flexible graphite | |
| 螺栓 bolts | GB | 25 | 0Cr18Ni9 | 0Cr18Ni9 | 15Cr1Mo1v | |||
| ASTM | A193 B7 | A320-B8 | A320-B8 | A193 B16 | ||||
| 螺母 nuts | GB | 45 | 0Cr18Ni9 | 0Cr18Ni9 | 20CrMo | |||
| ASTM | A194 2H | A194-8 | A194-8 | A194-4 | ||||
Q340F法蘭側(cè)裝偏心半球閥主要連接尺寸
| 公稱壓力PN | 公稱通徑DN | 尺寸（mm）Dimensions | ||||||||||
| L | D | K | d | Y | b | Z-Φdo | Ws | Hs | Hw | Hd | ||
| 1.6MPa | 50 | 124 | 165 | 125 | 100 | - | 16 | 4-Φ18 | 230 | 164 | 260 | 310 |
| 65 | 145 | 185 | 145 | 120 | - | 18 | 4-Φ18 | 250 | 180 | 275 | 330 | |
| 80 | 165 | 200 | 160 | 135 | - | 20 | 8-Φ18 | 300 | 200 | 300 | 360 | |
| 100 | 194 | 220 | 180 | 155 | - | 20 | 8-Φ18 | 320 | 235 | 335 | 390 | |
| 125 | 210 | 250 | 210 | 185 | - | 22 | 8-Φ18 | 400 | 260 | 335 | 405 | |
| 150 | 229 | 285 | 240 | 210 | - | 24 | 8-Φ23 | 500 | 280 | 375 | 440 | |
| 200 | 243 | 340 | 295 | 265 | - | 26 | 12-Φ23 | 800 | 320 | 410 | 470 | |
| 250 | 297 | 405 | 355 | 320 | - | 30 | 12-Φ25 | 100 | 355 | 485 | 550 | |
| 300 | 338 | 460 | 410 | 375 | - | 30 | 12-Φ25 | 1200 | 400 | 530 | 595 | |
| 350 | 400 | 520 | 470 | 435 | - | 34 | 16-Φ25 | - | - | 580 | 650 | |
| 400 | 400 | 580 | 525 | 485 | - | 36 | 16-Φ30 | - | - | 650 | 730 | |
| 450 | 502 | 640 | 585 | 545 | - | 40 | 20-Φ30 | - | - | 710 | 790 | |
| 500 | 533 | 715 | 650 | 608 | - | 44 | 20-Φ34 | - | - | 760 | 840 | |
| 600 | 686 | 840 | 770 | 718 | - | 48 | 20-Φ41 | - | - | 870 | 960 | |
| 700 | 762 | 910 | 840 | 788 | - | 50 | 24-Φ41 | - | - | 910 | 1080 | |
| 800 | 864 | 1025 | 950 | 898 | - | 52 | 24-Φ41 | - | - | 935 | 1125 | |
| 900 | 914 | 1125 | 1050 | 998 | - | 54 | 28-Φ41 | - | - | 995 | 1255 | |
| 1000 | | 1255 | 1170 | 1110 | - | 56 | 28-Φ48 | - | - | 1080 | 1385 | |
| 1200 | | 1485 | 1390 | 1325 | - | 58 | 32-Φ54 | - | - | 1175 | 1490 | |
| 1400 | | 1685 | 1590 | 1525 | - | 60 | 36-Φ54 | - | - | 1280 | 1565 | |
| 2.5MP | 50 | 124 | 165 | 125 | 100 | - | 20 | 4-Φ18 | 230 | 164 | 260 | 310 |
| 65 | 145 | 185 | 145 | 120 | - | 22 | 8-Φ18 | 250 | 180 | 275 | 330 | |
| 80 | 165 | 200 | 160 | 135 | - | 22 | 8-Φ18 | 300 | 200 | 300 | 360 | |
| 100 | 194 | 230 | 190 | 160 | - | 24 | 8-Φ23 | 320 | 235 | 335 | 390 | |
| 125 | 210 | 270 | 220 | 188 | - | 28 | 8-Φ25 | 400 | 260 | 355 | 405 | |
| 150 | 229 | 300 | 250 | 218 | - | 30 | 8-Φ25 | 500 | 280 | 375 | 440 | |
| 200 | 243 | 360 | 310 | 278 | - | 34 | 12-Φ25 | 800 | 320 | 410 | 470 | |
| 250 | 297 | 425 | 370 | 332 | - | 36 | 12-Φ30 | 1000 | 355 | 485 | 550 | |
| 300 | 338 | 485 | 430 | 390 | - | 40 | 16-Φ30 | 1200 | 400 | 530 | 595 | |
| 350 | 400 | 555 | 490 | 448 | - | 44 | 16-Φ34 | - | - | 580 | 650 | |
| 400 | 400 | 620 | 550 | 505 | - | 48 | 16-Φ34 | - | - | 650 | 730 | |
| 450 | 502 | 670 | 600 | 555 | - | 50 | 20-Φ34 | - | - | 710 | 790 | |
| 500 | 533 | 730 | 660 | 610 | - | 52 | 20-Φ41 | - | - | 760 | 840 | |
| 600 | 686 | 845 | 770 | 718 | - | 56 | 20-Φ41 | - | - | 870 | 960 | |
| 700 | 762 | 960 | 875 | 815 | - | 60 | 24-Φ48 | - | - | 990 | 1080 | |
| 800 | 864 | 1085 | 990 | 930 | - | 64 | 24-Φ48 | - | - | 935 | 1125 | |
| 900 | 914 | 1185 | 1090 | 1025 | - | 66 | 28-Φ54 | - | - | 995 | 1255 | |
| 1000 | | 1320 | 1210 | 1140 | - | 68 | 28-Φ58 | - | - | 1080 | 1385 | |
| 1200 | | 1520 | 1420 | 1350 | - | 72 | 32-Φ58 | - | - | 1175 | 1490 | |
| 1400 | | 1755 | 1640 | 1560 | - | 78 | 36-Φ65 | - | - | 1280 | 1565 | |
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