Factory Discharge Sewage Anti-backflow Valve Galvanized Flange EPDM
Rubber Duckbill Check Valve
Duckbill valve application scenarios
1.Sewage treatment and drainage systems: Flanged rubber duckbill valves can effectively prevent sewage
backflow and protect treatment facilities from contamination at
inlets and outlets, pipe intersections and outlets of sewage
treatment plants. Its excellent sealing performance ensures no
leakage in the closed state, thus maintaining the normal operation
of the wastewater treatment system.
2. Water conservancy engineering: In reservoirs, canals, embankments and other places, flanged
rubber duckbill valves can be used to control the direction of
water flow and prevent water flow from backfilling or leakage. Its
corrosion resistance and wear resistance make it able to operate
stably for a long time in harsh water conservancy environment,
providing a strong guarantee for the safe operation of water
conservancy projects.
3. Marine engineering: In marine engineering, such as coastal protection, port terminals,
submarine pipelines and other places, flanged rubber duckbill
valves can be used to prevent seawater backflow or pollutants from
entering inland waters. Its special duckbill shape design allows
the valve to fit snugly to the inner wall of the pipe when closed,
forming an effective sealing barrier and protecting the ecological
environment of inland waters.
4. Environmental protection engineering: In landfills, leachate treatment systems and other places, flanged
rubber duckbill valves can be used to control the discharge of
leachate or wastewater. Its good sealing performance and corrosion
resistance make it able to operate stably for a long time in these
harsh environments, preventing contaminant leakage and polluting
the environment.
5. Industrial field: In the chemical, petroleum, pharmaceutical and other industrial
fields, flanged rubber duckbill valves can be used to control the
flow of various corrosive media. Its all-rubber construction allows
the valve to withstand a wide range of chemicals, ensuring the safe
and stable operation of the piping system.
Table of Materials
| Application | Coast, beach, dock, reservoir,etc. |
| Rubber Material | NR,NBR,EPDM etc. |
| Flange Material | Carbon steel,SS304,SS316 etc. |
| Flange Drilling | PN10/PN16 |
| Flange Standard | DIN (Other Standarts Optional) |
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 |
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FAQ
Q: What is your shipment and delivery time?
A: By sea or air. Normally 7 to 14 Days for delivery, according to
your order quantity.
Q: What is the function of the duckbill valve?
A: The main function of the rubber duckbill valve is to prevent the
backflow of fluid, and at the same time, it has the characteristics
of no clogging, good sealing, long service life, no failure, and no
maintenance.
Q: What are the application areas of duckbill valves?
A: Coast, beach, dock, reservoir,etc.
Q: Do you have a catalog?
A: Yes, we do. Please let me know your email address or instant
message and we will send our catalog.
Q: What are your payment terms?
A: T/T (30% as deposit, remaining 70% to be paid before delivery),
L/C at sight.
