ANSI Standard One-Way Anti-Backflow SS304 Flanged EPDM Rubber Duckbill Check Valve
How the duckbill valve works
The working principle of the duckbill valve is to control the flow of the medium through the fluid pressure and the elastic deformation of the valve disc. This kind of valve has no moving components, belongs to the flexible rubber check valve, mainly used in sewage drainage system, rainwater drainage system, underground parking lot drainage system, etc., with the function of preventing sewage backflow and odor blocking.
Features
1. Easy to install
2. The valve body is made of rubber, which has good flexibility
3. The product is not easy to clog and seals well
4. Long service life, no failure, maintenance-free
5. The opening pressure is small, and the water head greater than 0.01 meters can be opened
6. It can change various installation forms to meet customer needs
Application
It is suitable for sewage systems, drainage systems, dam discharge, airports, highway drainage, sewage pool drainage, sewer drainage, factory aeration system, pumping station system, especially large drainage pumping station, etc.
Main connection size
| Model | Pipe Nominal Diameter | Length(mm) | High(mm) | Flange outside diameter(mm) |
| XH4150-150-F | 50 | 150 | 100 | 150 |
| XH4180-220-F | 80 | 220 | 140 | 200 |
| XH41100-250-F | 100 | 250 | 200 | 225 |
| XH41150-340-F | 150 | 340 | 265 | 275 |
| XH41200-420-F | 200 | 420 | 325 | 338 |
| XH41250-520-F | 250 | 520 | 425 | 400 |
| XH41300-620-F | 300 | 620 | 525 | 485 |
| XH41350-700-F | 350 | 700 | 625 | 525 |
| XH41400-800-F | 400 | 800 | 725 | 588 |
| XH41450-900-F | 450 | 900 | 825 | 625 |
| XH41500-980-F | 500 | 980 | 925 | 688 |
| XH41600-1120-F | 600 | 1120 | 1025 | 800 |
| XH41700-1180-F | 700 | 1180 | 1125 | 969 |
| XH41800-1350-F | 800 | 1350 | 1400 | 1080 |
| XH41900-1500-F | 900 | 1500 | 1525 | 1150 |
| XH411000-1600-F | 1000 | 1600 | 1725 | 1350 |
| XH411200-1840-F | 1200 | 1840 | 1950 | 1485 |
Technical Parameters
| Name | ANSI Standard One-Way Anti-Backflow SS304 Flanged EPDM Rubber Duckbill Check Valve |
| Size | DN50-DN1600 |
| Working temperature | -20℃-150℃ |
| Material of rubber | EPDM,NR,NBR or requested |
Advantage
Inventory display
FAQ
Q: Can we choose different material?
A: Yes, the material can be chose according to your requirement.
Q: Do you accept small quantity order?
A: Of course we do.
Q: Do you have any test reports?
A: Of course, we have national certifications.
Q: What are the rubber materials of duckbill valves?
A: We have EPDM, NR, NBR,FPM, etc.
Q: How much pressure can a duckbill valve withstand?
A: 1.0-2.5Mpa.
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One Way Anti Backflow SS304 Flanged EPDM Rubber Duckbill Check Valve ANSI Standard Images
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