更新時間：2017-01-24
NKZ41H真空隔離閘閥《上海遠一閥門碳鋼閘閥、鑄鋼閘閥》NKZ41H真空閘閥連接形式分法蘭、焊接兩種，驅(qū)動方式有手動、電動兩種。該閥門適用于工作溫度≤425℃和≤550℃，工作介質(zhì)為水、蒸汽或空氣的管路上，作為啟閉裝置；尤其適用于火電廠汽機冷凝和真空負壓系統(tǒng)，起真空隔離密封作用。
真空閘閥產(chǎn)品說明：
NKZ41H真空隔離閘閥《上海遠一閥門碳鋼閘閥、鑄鋼閘閥》NKZ41H真空閘閥連接形式分法蘭、焊接兩種，驅(qū)動方式有手動、電動兩種。該閥門適用于工作溫度≤425℃和≤550℃，工作介質(zhì)為水、蒸汽或空氣的管路上，作為啟閉裝置；尤其適用于火電廠汽機冷凝和真空負壓系統(tǒng)，起真空隔離密封作用。
試驗壓力 Test pressure：
| 公稱壓力 PN/MPa Nominal pressure | 試驗壓力/MPa Seal test | ||
| 殼體強度試驗 Shell strength | 上密封試驗 Back seal test | 密封試驗 Seat test | |
| 1.0 | 1.5 | 1.1 | 1.1 |
| 1.6 | 2.4 | 1.8 | 1.8 |
| 2.5 | 3.8 | 2.8 | 2.8 |
| 4.0 | 6.0 | 4.4 | 4.4 |
| 6.4 | 8.6 | 7.0 | 7.0 |
| 10.0 | 15.0 | 11.0 | 11.0 |
使用范圍 Applicable：
| 產(chǎn)品類型 Product type | 適用介質(zhì) Applicable medium | 適用溫度/℃ Applicable temperature |
| NKZ41H NKZ44H NKZ944H-C型 NKZ941H | 水、蒸汽、空氣 Water，Steam，Air | ≤425 |
| NKZ41H(Y) NKZ44H(Y)-I型 NKZ944H(Y)-I型 NKZ941H(Y) | 水、蒸汽、空氣 Water，Steam，Air | ≤550 |
主要零件材料 Materials for main parts：
| 零件名稱 Part name | 閥體、閥蓋 Body Bonnet | 閥桿 Stem | 閘板 Wedge gate | 密封面 Sealing face | 閥桿螺母 Yokenut | 填料 Parking | 緊固件 Fastener |
| NKZ44H NKZ41H-C型 NKZ944H-C型 NKZ941H | WCB | 2Crl3 | 25 | H：合金鋼 H：alloy steel | 鋁青銅 Albronze | 膨脹復合石墨 Expanding comDound graphite | 優(yōu)質(zhì)碳鋼 High-grade carbon steel |
| NKZ44 NKZ41Y-I型 NKZ944-I型 NKZ941 | 鉻鉬鋼 Cr.Mo steel | 20CrlMo1VA 38CrMoAlA | 鉻鉬鋼 Cr.Mo steel | Y：硬質(zhì)合金 Y：carbide alloy | 鉻鉬鋼 Cr.Mo steel |
主要尺寸及重量 Main dimensions and weight：
| 公稱通徑 DN/mm Nominal diameter | 公稱壓力 PN/MPa Nominal pressure | 主要外形尺寸和連接尺寸/mm Main extemal and connecting dimensions
| 閥門 重量 /kg Valve weight | 附法蘭尺寸/mm Additional flange’s dimensions | ||||||||||
| L | H | D | D1 | D2 | b | f | z-d | W | h | D0 | Dn | |||
| 50 | 1.0 | 250 | 345 | 160 | 125 | 1OO | 16 | 3 | 4-18 | 250 | 28 | 45 | 49 | 58 |
| 65 | 270 | 395 | 180 | 145 | 120 | 18 | 3 | 4-18 | 250 | 40 | 48 | 64 | 75 | |
| 80 | 280 | 425 | 195 | 160 | 135 | 20 | 3 | 4-18 | 300 | 55 | 50 | 78 | 97 | |
| 100 | 300 | 51O | 215 | 180 | 155 | 20 | 3 | 8-18 | 300 | 72 | 52 | 96 | 110 | |
| 125 | 325 | 570 | 245 | 21O | 185 | 22 | 3 | 8-18 | 350 | 106 | 60 | 120 | 136 | |
| 150 | 350 | 725 | 280 | 240 | 21O | 24 | 3 | 8-18 | 350 | 146 | 60 | 145 | 163 | |
| 200 | 400 | 820 | 335 | 295 | 265 | 26 | 3 | 8-18 | 400 | 220 | 62 | 202 | 223 | |
| 250 | 450 | 890 | 390 | 350 | 320 | 28 | 3 | 12-23 | 400 | 315 | 62 | 225 | 278 | |
| 300 | 500 | 1070 | 440 | 400 | 368 | 28 | 3 | 12-23 | 450 | 398 | 65 | 303 | 330 | |
| 350 | 550 | 1320 | 500 | 460 | 428 | 30 | 4 | 16-23 | 550 | 530 | 65 | 351 | 382 | |
| 400 | 600 | 1450 | 565 | 515 | 482 | 32 | 4 | 16-25 | 550 | 690 | 65 | 398 | 432 | |
| 450 | 650 | 1560 | 615 | 565 | 532 | 32 | 4 | 20-25 | 600 | 870 | 70 | 460 | 485 | |
| 500 | 700 | 1720 | 670 | 620 | 585 | 34 | 4 | 20-25 | 650 | 1080 | 78 | 500 | 535 | |
| 600 | 800 | 1880 | 780 | 725 | 685 | 36 | 5 | 20-30 | 700 | 1350 | 90 | 600 | 636 | |
| 700 | 900 | 2085 | 895 | 840 | 800 | 40 | 5 | 24-30 | 750 | 1950 | 90 | 690 | 726 | |
| 800 | 1OOO | 2590 | 101O | 950 | 905 | 44 | 5 | 24-34 | 800 | 2500 | 106 | 790 | 826 | |
| 50 |
1.6 | 250 | 345 | 160 | 125 | 1OO | 16 | 3 | 4-18 | 250 | 28 | 48 | 49 | 58 |
| 65 | 270 | 395 | 180 | 145 | 120 | 18 | 3 | 4-18 | 250 | 40 | 50 | 64 | 75 | |
| 80 | 280 | 425 | 195 | 160 | 135 | 20 | 3 | 8-18 | 300 | 58 | 52 | 78 | 91 | |
| 100 | 300 | 51O | 215 | 180 | 155 | 20 | 3 | 8-18 | 300 | 75 | 52 | 96 | 110 | |
| 125 | 325 | 570 | 245 | 21O | 185 | 22 | 3 | 8-18 | 350 | 110 | 60 | 120 | 136 | |
| 150 | 350 | 725 | 280 | 240 | 21O | 24 | 3 | 8-23 | 350 | 150 | 60 | 145 | 163 | |
| 200 | 400 | 820 | 335 | 295 | 265 | 26 | 3 | 12-23 | 400 | 223 | 62 | 201 | 223 | |
| 250 | 450 | 890 | 405 | 355 | 320 | 30 | 3 | 12-25 | 450 | 326 | 68 | 253 | 278 | |
| 300 | 500 | 1070 | 460 | 41O | 375 | 30 | 3 | 12-25 | 550 | 432 | 70 | 303 | 330 | |
| 350 | 550 | 1320 | 520 | 470 | 435 | 34 | 4 | 16-25 | 600 | 572 | 78 | 351 | 382 | |
| 400 | 600 | 1450 | 580 | 525 | 485 | 36 | 4 | 16-30 | 650 | 740 | 90 | 398 | 432 | |
| 450 | 650 | 1560 | 640 | 585 | 545 | 40 | 4 | 20-30 | 700 | 955 | 95 | 450 | 485 | |
| 500 | 700 | 1720 | 705 | 650 | 608 | 44 | 4 | 20-34 | 750 | 1195 | 98 | 500 | 535 | |
| 600 | 800 | 1880 | 840 | 770 | 718 | 48 | 5 | 20-41 | 800 | 1455 | 105 | 600 | 636 | |
| 700 | 900 | 2085 | g1O | 840 | 788 | 50 | 5 | 24-41 | 850 | 211O | 11O | 690 | 726 | |
| 800 | 1OOO | 2590 | 1020 | 950 | 898 | 52 | 5 | 24-41 | 950 | 2630 | 115 | 790 | 826 | |
主要尺寸及重量 Main dimensions and weight：
| 公稱通徑 DN/mm Nominal diameter | 公稱壓力 PN/MPa Nominal pressure | 主要外形尺寸和連接尺寸/mm Mainexternalandconnectingdimensions | 閥門 重量 /kg Valve weight | 附法蘭尺寸/mm Additional flange’s dimensions | ||||||||||
| L | H | D | D1 | D2 | b | f | Z-d | W | h | DO | Dn | |||
| 50 | 25 | 250 | 345 | 160 | 125 | 100 | 20 | 3 | 4-18 | 250 | 30 | 48 | 49 | 64 |
| 65 | 270 | 395 | 180 | 145 | 120 | 22 | 3 | 8-18 | 250 | 43 | 52 | 66 | 82 | |
| 80 | 280 | 425 | 195 | 160 | 135 | 22 | 3 | 8-18 | 300 | 60 | 55 | 78 | 95 | |
| 1OO | 300 | 510 | 230 | 190 | 160 | 24 | 3 | 8-23 | 300 | 79 | 62 | 100 | 117 | |
| 125 | 325 | 570 | 270 | 220 | 188 | 28 | 3 | 8-25 | 350 | 114 | 68 | 125 | 144 | |
| 150 | 350 | 725 | 300 | 250 | 218 | 30 | 3 | 8-25 | 350 | 157 | 72 | 151 | 172 | |
| 200 | 400 | 820 | 360 | 310 | 278 | 34 | 3 | 12-25 | 400 | 243 | 60 | 201 | 223 | |
| 250 | 450 | 890 | 425 | 370 | 332 | 36 | 3 | 12-30 | 450 | 345 | 85 | 253 | 278 | |
| 300 | 500 | 1070 | 483 | 430 | 390 | 40 | 4 | 16-30 | 550 | 455 | 92 | 303 | 330 | |
| 350 | 550 | 1320 | 550 | 4g0 | 448 | 44 | 4 | 16-34 | 650 | 615 | 98 | 351 | 382 | |
| 400 | 1450 | 610 | 550 | 505 | 48 | 4 | 16-34 | 700 | 7g4 | 115 | 398 | 432 | ||
| 450 | 650 | 1560 | 660 | 600 | 555 | 50 | 4 | 20-34 | 750 | 1018 | 115 | 450 | 483 | |
| 500 | 700 | 1720 | 730 | 660 | 61O | 52 | 4 | 20-41 | 800 | 1250 | 120 | 498 | 535 | |
| 600 | 800 | 1880 | 840 | 770 | 718 | 56 | 5 | 20-41 | 850 | 1528 | 130 | 598 | 636 | |
| 700 | 900 | 2085 | 955 | 875 | 815 | 60 | 5 | 24-48 | 900 | 2265 | 140 | 688 | 726 | |
| 800 | 1000 | 2590 | 1070 | 990 | 930 | 64 | 5 | 24-48 | 1000 | 2847 | 150 | 788 | 826 | |
| 公稱通徑 DN/mm Nominal di8m8ter | 公稱壓力 PN/MPa Nominal pressure |
主要外形尺寸和連接尺寸/mm | 閥門 重量 /kg Valve weight | 附法蘭尺寸/mm Additional flange’s dimensions | ||||||||||||
| L | H | D | D1 | D2 | b | f | D6 | f2 | z-d | W |
h |
DO |
Dn | |||
| 50 | 4．0 | 250 | 345 | 160 | 125 | 100 | 20 | 3 | 88 | 4 | 4-18 | 300 | 35 | 48 | 48 | 64 |
| 65 | 270 | 395 | 180 | 145 | 120 | 22 | 3 | 11O | 4 | 8-18 | 300 | 49 | 52 | 66 | 82 | |
| 80 | 280 | 425 | 195 | 160 | 135 | 22 | 3 | 121 | 4 | 8-18 | 350 | 65 | 58 | 78 | 95 | |
| 100 | 300 | 510 | 230 | 190 | 160 | 24 | 3 | 150 | 4.5 | 8-23 | 350 | 87 | 68 | 100 | 117 | |
| 125 | 325 | 570 | 270 | 220 | 188 | 28 | 3 | 176 | 4.5 | 8-25 | 400 | 124 | 68 | 125 | 144 | |
| 150 | 350 | 725 | 300 | 250 | 218 | 30 | 3 | 204 | 4.5 | 8-25 | 400 | 172 | 72 | 151 | 172 | |
| 200 | 400 | 820 | 375 | 320 | 282 | 38 | 3 | 260 | 4.5 | 12-30 | 450 | 275 | 88 | 19g | 223 | |
| 250 | 450 | 890 | 445 | 385 | 345 | 42 | 3 | 313 | 4.5 | 12-34 | 550 | 392 | 102 | 251 | 278 | |
| 300 | 500 | 1070 | 51O | 450 | 408 | 46 | 4 | 364 | 4.5 | 16-34 | 650 | 515 | 116 | 301 | 330 | |
| 350 | 550 | 1320 | 570 | 510 | 465 | 52 | 4 | 422 | 5 | 16-34 | 750 | 684 | 120 | 34g | 382 | |
| 400 | 600 | 1450 | 655 | 585 | 535 | 58 | 4 | 474 | 5 | 16-41 | 850 | 902 | 142 | 396 | 432 | |
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