產品介紹
一、結構及用途 Structure and purpose
該閥是一種利用介質自身能量來調節管路的壓力，通過調節減壓導閥，控制主閥的出口壓力，出口壓力不因進口壓力的變化而改變，亦不受出 口用水量的變化而改變出口壓力。密封性能可靠，安裝、維護、調試、檢查方便，使用壽命長。
This valve utilizes the self energy of a medium to adjust the pipeline pressure and controls the outlet pressure of the main valve via the adjustment of the pressure reducing pilot valve. The outlet pressure does not change along with the variation of the inlet one and of the water quantity at the outlet. Reli-able sealing performance, easy installation, maintenance, debugging and check, long duration.
四、主要外形及連接尺寸 schematic diagram of installation
公稱通徑 DN(mm) 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 700 800 L 180 180 180 203 203 216 241 292 330 356 495 622 698 787 914 978 978 1295 1446 1956 PN10 D 105 115 135 145 160 180 195 215 245 280 335 390 440 500 565 615 670 780 895 1010 D1 75 85 100 110 125 145 160 180 210 240 295 350 400 460 515 565 620 725 840 950 PN16 D 105 115 135 145 160 180 195 215 245 280 335 405 460 520 580 640 705 840 910 1020 D1 75 85 100 110 125 145 160 180 210 240 295 355 410 470 525 585 650 770 840 950 PN25 D 105 110 135 145 160 180 195 230 270 300 360 425 485 550 610 660 730 840 955 1070 D1 75 85 100 110 125 145 160 190 220 250 310 370 430 490 550 600 660 770 875 990 H 342 342 342 395 395 405 430 510 560 585 675 730 760 840 910 1030 1135 1270 1460 1640 H1 247 247 247 278 278 298 313 350 365 420 450 470 490 526 570 610 665 725 865 975 注：安裝示意圖中彈性座封閘閥或蝶閥任選，建議≥DN350選蝶閥。
Note：Either elastic seat ring sealed gate valve or butterfly valve can be selected in the schematic diagram of installation.to select the butterfly valve in case of ≥DN350.
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