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永嘉縣明科閥門有限公司
永嘉縣明科閥門有限公司
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閘閥是Z常用的截斷閥之一，主要用來接通或截斷管路中的介質，不適用于調節介質流量。閘閥適用的壓力、溫度及口徑范圍很大，尤其適用于中、大口徑的管道。
閘閥是zui常用的截斷閥之一，主要用來接通或截斷管路中的介質，不適用于調節介質流量。閘閥適用的壓力、溫度及口徑范圍很大，尤其適用于中、大口徑的管道。
閘閥的主要優點：
（1）流體阻力小。閘閥閘體內部介質通道是直通的，介質流經閘閥時不改變其流動方向，因而流動阻力較小。
（2）啟閉較省力。啟閉時閘板運動方向與介質流動方向相垂直。與截止閥相比，閘閥的啟閉較為省力。
（3）介質流動方向一般不受限制。介質可從閘閥兩側任意方向流過，均能達到接通或截斷的目的。便于安裝，適用于介質的流動方向可能改變的管路中。
重量輕：閥體采用球鐵制成，重量輕，安裝方便。
平底閥座：底部采用與水管相同的平底式閥座設計，不產生雜物淤積，密封更可靠。
耐腐蝕：內腔采用無毒環氧樹脂涂狀，防止腐蝕和生銹，不但可供生飲，而且可用于污水系統。
“0”密封：閥桿采用三道0型環密封，磨擦阻力小，開關輕巧，不漏水。主要零件材料及性能規范
| 主要零部件 | 閥體、閥蓋、閘板 | WCB | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti 0Cr18Ni12Mo2Ti | ZG2Cr5Mo |
| 閥桿 | 1Cr13 | 1Cr18Ni9Ti | 20Cr1Mo1V1 | ||
| 閥桿螺母 | ZguAL10Fe3/球墨鑄鐵 | ||||
| 填料 | 柔性石墨、石墨石棉盤根 | ||||
| 主要 參數 | 適用介質 | 蒸汽、油品、水等 | 硝酸類 | 醋酸類 | 蒸汽、油品、水等 |
| 適用適用溫度℃ | ≤425 | ≤200 | ≤200 | ≤425 | |
| 型號 | 公稱 | 主要結構尺寸（mm） | 閥體 材料 | 性能規范 | ||||||
| 通徑 DN（mm） | 壓力 PN（MPa） | D | D0 | L | H1 | H2 | 適用溫度℃ | 適用 介質 | ||
| Z410Y-16I | 50 | 1.6 | 160 | 200 | 250 | 185 | 240 | ZGCr5Mo | ≤550 | 蒸汽、油品、水 |
| " | 65 | " | 180 | 200 | 270 | 240 | 20 | " | " | " |
| " | 80 | " | 195 | 250 | 280 | 350 | 395 | " | " | " |
| " | 100 | " | 215 | 250 | 300 | 370 | 480 | " | " | " |
| " | 150 | " | 280 | 300 | 350 | 560 | 720 | " | " | " |
| " | 200 | " | 335 | 350 | 400 | 735 | 955 | " | " | " |
| " | 250 | " | 405 | 400 | 450 | 880 | 1150 | " | " | " |
| " | 300 | " | 460 | 450 | 500 | 1050 | 1375 | " | " | " |
| " | 350 | " | 520 | 500 | 550 | 1195 | 1565 | " | " | " |
| " | 400 | " | 580 | 550 | 600 | 1335 | 1760 | " | " | " |
| " | 500 | " | 705 | 600 | 700 | 1720 | 2270 | " | " | " |
| " | 600 | " | 840 | 650 | 800 | 1830 | 2480 | " | " | " |
| " | 700 | " | 910 | 900 | " | " | " | |||
| Z410Y-25I | 50 | 2.5 | 160 | 200 | 250 | 185 | 240 | ZGCr5Mo | ≤550 | 蒸汽、油品、水 |
| " | 65 | " | 180 | 200 | 270 | 240 | 320 | " | " | " |
| " | 80 | " | 195 | 250 | 280 | 305 | 395 | " | " | " |
| " | 100 | " | 230 | 250 | 300 | 370 | 480 | " | " | " |
| " | 150 | " | 300 | 300 | 350 | 560 | 720 | " | " | " |
| " | 200 | " | 360 | 360 | 400 | 735 | 955 | " | " | " |
| " | 250 | " | 425 | 425 | 450 | 880 | 1160 | " | " | " |
| " | 300 | " | 485 | 485 | 500 | 1080 | 1405 | " | " | " |
| " | 350 | " | 550 | 550 | 550 | 1210 | 1580 | " | " | " |
| " | 400 | " | 610 | 610 | 600 | 1345 | 1780 | " | " | " |
| " | 500 | " | 730 | 730 | 700 | 1740 | 2290 | " | " | " |
| " | 600 | " | 840 | 650 | 800 | 1850 | 2500 | " | " | " |
| " | 700 | " | 955 | 900 | " | " | " | |||
| Z410Y-40I | 50 | 4.0 | 160 | 250 | 250 | 220 | 295 | ZGCr5Mo | ≤550 | 蒸汽、油品、水 |
| " | 65 | " | 180 | 250 | 280 | 290 | 365 | " | " | " |
| " | 80 | " | 195 | 300 | 310 | 360 | 450 | " | " | " |
| " | 100 | " | 230 | 300 | 350 | 450 | 570 | " | " | " |
| " | 150 | " | 300 | 350 | 450 | 620 | 790 | " | " | " |
| " | 200 | " | 375 | 400 | 550 | 830 | 1050 | " | " | " |
| " | 250 | " | 445 | 450 | 650 | 950 | 1235 | " | " | " |
| " | 300 | " | 510 | 500 | 750 | 1120 | 1450 | " | " | " |
| " | 350 | " | 570 | 550 | 850 | 1560 | 1940 | " | " | " |
| " | 400 | " | 655 | 600 | 950 | 1770 | 2200 | " | " | " |
| " | 500 | " | 755 | 680 | 1050 | 1880 | " | " | " | |
| Z410Y-64I | 50 | 6.4 | 175 | 300 | 250 | 240 | 320 | ZGCr5Mo | ≤550 | 蒸汽、油品、水 |
| " | 65 | " | 200 | 300 | 280 | 310 | 390 | " | " | " |
| " | 80 | " | 210 | 350 | 310 | 380 | 470 | " | " | " |
| " | 100 | " | 250 | 350 | 350 | 470 | 590 | " | " | " |
| " | 150 | " | 340 | 400 | 450 | 640 | 810 | " | " | " |
| " | 200 | " | 405 | 450 | 550 | 850 | 1070 | " | " | " |
| " | 250 | " | 470 | 500 | 650 | 1000 | 1270 | " | " | " |
| Z410Y-64I | 300 | 6.4 | 530 | 550 | 750 | 1210 | 1550 | ZGCr5Mo | ≤550 | 蒸汽、油品、水 |
| Z410Y-100I | 50 | 10.0 | 195 | 300 | 250 | 260 | 340 | ZGCr5Mo | ≤550 | 蒸汽、油品、水 |
| " | 65 | " | 220 | 300 | 280 | 330 | 410 | " | " | " |
| " | 80 | " | 230 | 350 | 310 | 400 | 490 | " | " | " |
| " | 100 | " | 265 | 350 | 350 | 490 | 610 | " | " | " |
| " | 150 | " | 350 | 400 | 450 | 660 | 830 | " | " | " |
| " | 200 | " | 430 | 450 | 550 | 1100 | 1320 | " | " | " |
| " | 250 | " | 500 | 500 | 650 | 1300 | 1580 | " | " | " |
| " | 300 | " | 585 | 550 | 750 | 1480 | 1810 | " | " | " |
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