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J941H/Y電動(dòng)截止閥
電動(dòng)截止閥屬于強(qiáng)制密封式閥門，所以在閥門關(guān)閉時(shí)，必須向閥瓣施加壓力，以強(qiáng)制密封面不泄漏。當(dāng)介質(zhì)由閥瓣下方進(jìn)入閥門時(shí)，操作力所需要克服的阻力，是閥桿和填料的摩擦力與由介質(zhì)的壓力所產(chǎn)生的推力，關(guān)閥門的力比開閥門的力大，所以閥桿的直徑要大，否則會(huì)發(fā)生閥桿頂彎的故障。近年來，從自密封的閥門出現(xiàn)后，截止閥的介質(zhì)流向就改由閥瓣上方進(jìn)入閥腔，這時(shí)在介質(zhì)壓力作用下，關(guān)閥門的力小，而開閥門的力大，閥桿的直徑可以相應(yīng)地減少。同時(shí)，在介質(zhì)作用下，這種形式的閥門也較嚴(yán)密。我國閥門“三化給”曾規(guī)定，截止閥的流向，一律采用自上而下。
電動(dòng)截止閥開啟時(shí)，閥瓣的開啟高度，為公稱直徑的25%～30%時(shí)，流量已達(dá)到zui大，表示閥門已達(dá)全開位置。所以截止閥的全開位置，應(yīng)由閥瓣的行程來決定。
電動(dòng)截止閥執(zhí)行標(biāo)準(zhǔn)
| 設(shè)計(jì)與制造 Design and Manufacture | 結(jié)構(gòu)長度 | 法蘭尺寸 | 壓力-溫度 Pressure Temperature Lating | 試驗(yàn)-檢驗(yàn) Inspection And Test |
| GB122235 | GB12221 | GB9113 JB79 | GB9131 | GB/T13927 JB/T9092 |
電動(dòng)截止閥壓力試驗(yàn)
| 公稱壓力NominalPressure | 1.6 | 2.5 | 4.0 | 6.4 | 10.0 | 16.0 |
| 強(qiáng)度試驗(yàn) Shell Test | 2.4 | 3.8 | 6.0 | 9.6 | 15.0 | 24.0 |
| 水密封試驗(yàn) Water Seal Test | 1.8 | 2.8 | 4.4 | 7.0 | 11.0 | 18.0 |
| 上密封試驗(yàn)Backseat Test | 1.8 | 2.8 | 4.4 | 7.0 | 11.0 | 18.0 |
| 氣密封試驗(yàn) Air Seal Test | 0.5-0.7 | |||||
電動(dòng)截止閥主要零件材料及性能
| 體、蓋、板 Body Cover Disc | 閥桿 | 密封面 Sealing Face | 墊片 | 填料 | 工作溫度℃ Working Temperature | 適用介質(zhì)Suitable Medium | |
| WCB | 2Cr13 | 13Cr STL 木體材料 With Body Material 尼龍 Nylon | 增強(qiáng)柔性石墨 Enhanced Flexible Graphite 13Cr/柔性石墨 1Cr13/Flexible Graphite 08軟鋼 08 Soft Steal 0Cr18Ni9Ti 0Cr17Ni12Mo2Ti XD550F（T） PTFE | 柔性石墨 增強(qiáng)柔性石墨 Flexible Graphite Enhanced Flexible Graphite SFB/260 SFP/260 PTFE
| ≤425 | 水 蒸汽 油品 Water Steam Petroleum Ptoducts | |
| WC1 | 38CrMoAl 25Cr2MoV | ≤450 | |||||
| WC6 | ≤540 | ||||||
| WC9 | ≤570 | ||||||
| C5 C12 | ≤540 | ||||||
| ZGCr5Mo | ≤200 | Nitric acid | |||||
| ZG1Cr18Ni9Ti | 1Cr18Ni9Ti | ||||||
| ≤200 | 醋酸類Acetic acid | ||||||
| ZG1Cr18Ni12Mo2Ti | 1Cr18Ni12Mo2Ti |
電動(dòng)截止閥規(guī)格 主要尺寸和重量
| 1.6MPa | DN | L | D | D1 | D2 | b | n-φd | H | Do | 重量 Weight |
| 凸面 法蘭 16C | 10 | 130 | 90 | 60 | 40 | 14 | 4-14 | 198 | 120 | 4.9 |
| 15 | 130 | 95 | 65 | 45 | 14 | 4-14 | 218 | 120 | 5.3 | |
| 20 | 150 | 105 | 75 | 55 | 14 | 4-14 | 258 | 140 | 7.0 | |
| 25 | 160 | 115 | 85 | 65 | 14 | 4-14 | 275 | 160 | 7.4 | |
| 32 | 180 | 135 | 100 | 78 | 16 | 4-18 | 280 | 180 | 8.3 | |
| 40 | 200 | 145 | 110 | 85 | 16 | 4-18 | 330 | 200 | 12.6 | |
| 50 | 230 | 160 | 125 | 100 | 16 | 4-18 | 350 | 240 | 14 | |
| 65 | 290 | 180 | 145 | 120 | 18 | 4-18 | 400 | 280 | 22.7 | |
| 80 | 310 | 195 | 160 | 135 | 20 | 8-18 | 355 | 280 | 29 | |
| 100 | 350 | 215 | 180 | 155 | 20 | 8-18 | 415 | 320 | 32.8 | |
| 125 | 400 | 245 | 210 | 185 | 22 | 8-18 | 460 | 360 | 79.5 | |
| 150 | 480 | 280 | 240 | 210 | 24 | 8-23 | 510 | 400 | 93 | |
| 200 | 600 | 335 | 295 | 265 | 26 | 12-23 | 710 | 400 | 179 | |
| 250 | 622 | 405 | 355 | 320 | 30 | 12-25 | 786 | 450 | 441 | |
| 300 | 698 | 460 | 410 | 375 | 30 | 12-25 | 925 | 500 | 646 |
電動(dòng)截止閥規(guī)格 主要尺寸和重量
| 2.5MPa | DN | L | D | D1 | D2 | b | n-φd | H | Do | 重量 Weight |
| 凸面法蘭 16C | 10 | 130 | 90 | 60 | 40 | 16 | 4-14 | 198 | 120 | 4.9 |
| 15 | 130 | 95 | 65 | 45 | 16 | 4-14 | 218 | 120 | 5.3 | |
| 20 | 150 | 105 | 75 | 55 | 16 | 4-14 | 258 | 140 | 7.0 | |
| 25 | 160 | 115 | 85 | 65 | 16 | 4-14 | 275 | 160 | 7.4 | |
| 32 | 180 | 135 | 100 | 78 | 18 | 4-18 | 280 | 180 | 8.3 | |
| 40 | 200 | 145 | 110 | 85 | 18 | 4-18 | 330 | 200 | 12.6 | |
| 50 | 230 | 160 | 125 | 100 | 20 | 8-18 | 350 | 240 | 16 | |
| 65 | 290 | 180 | 145 | 120 | 22 | 8-18 | 400 | 280 | 25 | |
| 80 | 310 | 195 | 160 | 135 | 22 | 8-23 | 355 | 280 | 30 | |
| 100 | 350 | 230 | 190 | 160 | 24 | 8-25 | 415 | 320 | 34.8 | |
| 125 | 400 | 270 | 220 | 188 | 28 | 8-25 | 460 | 360 | 89.5 | |
| 150 | 480 | 300 | 250 | 218 | 30 | 12-25 | 510 | 400 | 99 | |
| 200 | 600 | 360 | 310 | 278 | 34 | 12-25 | 710 | 400 | 181 | |
| 250 | 622 | 425 | 370 | 332 | 36 | 12-30 | 786 | 450 | 445 | |
| 300 | 698 | 485 | 430 | 390 | 40 | 16-30 | 925 | 500 | 651 |
電動(dòng)截止閥規(guī)格 主要尺寸和重量
| 4.0MPa | DN | L | D | D1 | D2 | b | n-φd | H | D0 | 重量Weight |
| 凹凸法蘭 MFM J941H J941Y J941W J941F J941N 40 40P 40R 40I | 20 | 150 | 105 | 75 | 51 | 16 | 4-14 | 275 | 140 | 7 |
| 25 | 160 | 115 | 85 | 58 | 16 | 4-14 | 285 | 160 | 9 | |
| 32 | 180 | 135 | 100 | 66 | 18 | 4-18 | 302 | 180 | 12 | |
| 40 | 200 | 145 | 110 | 76 | 18 | 4-18 | 355 | 200 | 17 | |
| 50 | 230 | 160 | 125 | 88 | 20 | 4-18 | 373 | 240 | 24 | |
| 65 | 290 | 180 | 145 | 110 | 22 | 8-18 | 408 | 280 | 33 | |
| 80 | 310 | 195 | 160 | 121 | 22 | 8-18 | 436 | 320 | 44 | |
| 100 | 350 | 230 | 190 | 150 | 24 | 8-23 | 480 | 360 | 60 | |
| 125 | 400 | 270 | 220 | 176 | 28 | 8-25 | 588 | 400 | 90 | |
| 150 | 480 | 300 | 250 | 204 | 30 | 8-25 | 611 | 400 | 100 | |
| 200 | 533 | 375 | 320 | 260 | 38 | 12-30 | 720 | 400 | 190 | |
| 6.4MPa | 20 | 190 | 125 | 90 | 51 | 20 | 4-18 | 228 | 160 | 13 |
| 凹凸法蘭 MFM J941H J941Y J941W J941F J941N 40 40P 40R 40I | 25 | 210 | 135 | 100 | 58 | 22 | 4-18 | 275 | 180 | 15 |
| 32 | 230 | 150 | 110 | 66 | 24 | 4-23 | 325 | 200 | 19 | |
| 40 | 260 | 165 | 125 | 76 | 24 | 4-23 | 360 | 240 | 25 | |
| 50 | 300 | 175 | 135 | 88 | 26 | 4-23 | 410 | 280 | 35 | |
| 65 | 340 | 200 | 160 | 110 | 28 | 8-23 | 450 | 320 | 48 | |
| 80 | 380 | 210 | 170 | 121 | 30 | 8-23 | 485 | 360 | 56 | |
| 100 | 430 | 250 | 200 | 150 | 32 | 8-25 | 537 | 400 | 125 | |
| 125 | 500 | 295 | 240 | 176 | 36 | 8-30 | 631 | 400 | 130 | |
| 150 | 550 | 340 | 280 | 204 | 38 | 8-34 | 646 | 450 | 160 | |
| 200 | 650 | 405 | 345 | 260 | 44 | 12-34 | 813 | 500 | 285 | |
| 10.0MPa | 10 | 170 | 100 | 70 | 35 | 20 | 4-14 | 198 | 120 | 6 |
| 凹凸法蘭 MFM J941H J941Y J941W J941F J941N 100 100P 100R 100I
| 15 | 170 | 105 | 75 | 40 | 20 | 4-14 | 202 | 140 | 11 |
| 20 | 190 | 125 | 90 | 51 | 22 | 4-18 | 228 | 160 | 13 | |
| 25 | 210 | 135 | 100 | 58 | 24 | 4-18 | 250 | 180 | 14 | |
| 32 | 230 | 150 | 110 | 66 | 24 | 4-23 | 326 | 220 | 16 | |
| 40 | 260 | 165 | 125 | 76 | 26 | 4-23 | 359 | 240 | 30 | |
| 50 | 300 | 195 | 145 | 88 | 28 | 4-25 | 414 | 280 | 50 | |
| 65 | 340 | 220 | 170 | 110 | 32 | 8-25 | 434 | 320 | 65 | |
| 80 | 380 | 230 | 180 | 121 | 34 | 8-25 | 547 | 400 | 100 | |
| 100 | 430 | 265 | 210 | 150 | 38 | 8-30 | 621 | 450 | 116 | |
| 125 | 500 | 310 | 250 | 176 | 42 | 8-34 | 732 | 450 | 150 | |
| 150 | 550 | 350 | 290 | 204 | 46 | 12-34 | 840 | 500 | 300 | |
| 200 | 650 | 430 | 360 | 260 | 54 | 12-41 | 925 | 550 | 600 | |
| 16.0 | 15 | 170 | 110 | 75 | 40 | 24 | 4-18 | 148 | 140 | 12 |
| 環(huán)槽法蘭 RTJ J941H J941Y J941W 160 160P 160R 160I | 20 | 190 | 130 | 90 | 51 | 26 | 4-23 | 156 | 160 | 15 |
| 25 | 210 | 140 | 100 | 58 | 28 | 4-23 | 175 | 180 | 17 | |
| 32 | 230 | 165 | 115 | 66 | 30 | 4-25 | 200 | 200 | 21 | |
| 40 | 260 | 175 | 125 | 76 | 32 | 4-27 | 231 | 240 | 31 | |
| 50 | 300 | 215 | 165 | 88 | 36 | 8-25 | 262 | 250 | 53 | |
| 65 | 340 | 245 | 190 | 110 | 44 | 8-30 | 303 | 320 | 70 | |
| 80 | 380 | 260 | 205 | 121 | 46 | 8-30 | 341 | 400 | 100 | |
| 100 | 430 | 300 | 240 | 150 | 48 | 8-34 | 485 | 450 | 120 |
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