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300X slowly closed check valves are used on the pomp outlet of a water supply system to prevent medium¡¯s back-flow, water hammer and water shock, combining three functions as an electric valve, check valve and water hammer remover, capable of effectively raising safety 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-staring and pump-stopping water hammers from being formed. The gate can automatically carry out open-close the operation rules of the water pump just by operating the pump to 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.
|
DN |
L |
D |
D1 |
H |
H1 |
Weight kg |
|
PN10 |
|
20 |
180 |
105 |
75 |
212 |
179 |
- |
|
25 |
180 |
115 |
85 |
212 |
179 |
- |
|
32 |
180 |
135 |
100 |
213 |
179 |
- |
|
40 |
203 |
145 |
110 |
265 |
210 |
- |
|
50 |
205 |
160 |
125 |
265 |
210 |
- |
|
65 |
2530 |
180 |
145 |
310 |
215 |
- |
|
80 |
245 |
195 |
160 |
350 |
245 |
- |
|
100 |
295 |
215 |
180 |
460 |
305 |
- |
|
125 |
325 |
245 |
210 |
520 |
365 |
- |
|
150 |
375 |
280 |
240 |
570 |
415 |
- |
|
200 |
410 |
335 |
295 |
695 |
445 |
- |
|
250 |
470 |
390 |
350 |
780 |
460 |
- |
|
300 |
510 |
440 |
400 |
905 |
500 |
- |
|
350 |
585 |
500 |
460 |
1025 |
540 |
- |
|
400 |
635 |
565 |
515 |
1080 |
600 |
- |
|
450 |
675 |
615 |
565 |
1110 |
650 |
- |
|
500 |
715 |
670 |
620 |
1155 |
705 |
- |
|
600 |
850 |
780 |
725 |
1270 |
770 |
- |
