Pipe size ID | Length (L) | Height (H) | Flange Outside Diameter (A) | |
DN | NPS | |||
50 | 2 | 150 | 100 | 150 |
80 | 3 | 220 | 140 | 200 |
100 | 4 | 250 | 200 | 225 |
150 | 6 | 340 | 265 | 275 |
200 | 8 | 420 | 325 | 338 |
250 | 10 | 520 | 425 | 400 |
300 | 12 | 620 | 525 | 485 |
350 | 14 | 700 | 625 | 525 |
400 | 16 | 800 | 725 | 588 |
450 | 18 | 900 | 825 | 625 |
500 | 20 | 980 | 925 | 688 |
600 | 24 | 1120 | 1025 | 800 |
700 | 28 | 1180 | 1125 | 969 |
800 | 32 | 1350 | 1400 | 1080 |
900 | 36 | 1500 | 1525 | 1150 |
1000 | 40 | 1600 | 1725 | 1325 |
1200 | 48 | 1840 | 1950 | 1485 |
Flange Type Rubber Check Valve
Flange type rubber check valve’s diameter gradually reduce along flow direction, and gradually forming a duckbill shape sealing parts, so it is also called flange type rubber duckbill valve. It can prevent flood and waste water to flow backward to sewer and basement, and avoid heavy loss; it can prevent flood to flow backward to waste water plant and drainage pump station; prevent waste water or peculiar smell fluid spread and can drain away water at any time; In rainy season, rubber check valve can prevent the flood of inland river from sewer to street.
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