Overview |
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Duckbill valve is check valve made with one piece of rubber. The special duckbill structure allows fluid or air flows from one side and avoids back flow from the other, no manual operation needed. Now this type of rubber valves is widely used in piping system, flood control and marine.
Duckbill valve Type 2020 is made by molds. The valves are finished with integrated rubber flanges, which will connect to the manhole walls or pipe flanges with bolts and nuts.
Features and Benefits |
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Complete with smooth surface
Quick installation, free of operation
Tough design makes maintenance free
Less weight, cost-effective
Special design and OEM are available
Supply Range |
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Size: 20mm to 300mm
Parts & Options |
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| Item | Part | Material | Quantity |
| 1 | Valve | Neoprene/EPDM/Nitrile | 1 |
| 2 | Ring Flange | Carbon Steel/SS/PVC | 1 |
| 3 | Mating Flange/Pipe | Carbon Steel/SS/PVC | not supply |
| 4 | Bolt | CS/SS | not supply |
| 5 | Nut | CS/SS | not supply |
*Carbon Steel ring flanges are not usually used, the normal materials are SS304 and SS316(L).
Data Sheet |
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| DN | F/F | OD | T | W | Weight(kg) |
| 20 | 80 | 105 | 12 | 37 | 0.1 |
| 25 | 80 | 115 | 12 | 48 | 0.1 |
| 32 | 90 | 140 | 12 | 57 | 0.2 |
| 40 | 97 | 150 | 12 | 67 | 0.2 |
| 50 | 120 | 165 | 12 | 100 | 0.3 |
| 65 | 160 | 185 | 14 | 120 | 0.5 |
| 80 | 180 | 200 | 14 | 140 | 0.9 |
| 100 | 210 | 220 | 14 | 175 | 1.4 |
| 125 | 240 | 250 | 14 | 210 | 2 |
| 150 | 215 | 285 | 16 | 254 | 2.7 |
| 200 | 350 | 340 | 16 | 345 | 5.3 |
| 250 | 455 | 405 | 18 | 455 | 10.2 |
| 300 | 495 | 460 | 18 | 480 | 15.8 |
PS: |
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Flange Pattern in above table are in accordance with PN10, other patterns are available upon request, but flange OD will not change.
As the valve molds are notmodifiable, please contact UNICK if special design needed.
