結(jié)構(gòu)及用途 Structure and purpose
該閥主要用于給水系統(tǒng)的水泵出口處，防止介質(zhì)倒流，水錘及水擊現(xiàn)象，該閥兼具電動閥、逆止閥和水錘消除器三種功能，可有效地提高供水系統(tǒng)的安全可靠性，并將緩開、速閉、緩閉消除水錘的技術(shù)原理一體化，防止開泵水錘和停泵水錘的產(chǎn)生，只需操作水泵電動啟閉，閥門即可按照水泵操作規(guī)程自動實現(xiàn)啟閉，該閥流量大，壓力損失小，密封性能可靠，安裝維護、調(diào)試檢查方便、使用壽命長。
Used on the pump outlet of a water supply system to prevent medium＇s back-flow．water hammer and water shock．combining three functions as an elec-tric valve,check valve and water hammer remove r,capable of effectively raisingsafety and reliability of the water supply system,integrating the technical principle of slow-open,speed valve,slow-close removing water hammer and preventing both pump-starting and pump-stopping water hammers from being formed The gate can automatically carry out open-close upon the operation rules of the water pump just by operating the pump t0 open or close electrically This valve features a big flow and a small pressure loss．reliable sealing performance,easy installation,debugging and maintenance and a long duration．
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 |
1448 |
1956 |
| PN1O |
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 |
185 |
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 |
172 |
172 |
172 |
265 |
265 |
310 |
350 |
460 |
520 |
570 |
695 |
780 |
905 |
1025 |
1080 |
1030 |
1135 |
1270 |
1460 |
1640 |
| H1 |
106 |
106 |
106 |
210 |
210 |
215 |
245 |
305 |
365 |
415 |
510 |
560 |
658 |
696 |
735 |
610 |
665 |
725 |
865 |
925 |
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.Recomended to select the butterfly valve in case of≥DN350.
