Performance characteristics of duckbill valves
1. Simple structure: The duckbill valve is composed of valve body, valve disc, valve
stem, etc., which is easy to manufacture and maintain.
2. Easy installation: The installation method of duckbill valve is flexible and diverse,
can be repaired, and is suitable for different installation
environments.
3. Strong corrosion resistance: The body and disc materials of the duckbill valve are mostly made
of stainless steel, cast steel and other corrosion-resistant
materials, which can be used for a long time in corrosive media.
4. Good sealing performance: Metal-to-metal sealing is adopted between the disc and the seat of
the duckbill valve, which effectively prevents the leakage of
medium.
5. Self-cleaning function: The internal design of the duckbill valve helps to clean
automatically and reduce sediment and sludge deposition.
6. Anti-freeze performance: The duckbill valve has good flexibility and elastic deformation,
and is suitable for low temperature environment.
Installation method
The installation method of duckbill valve mainly includes the
following steps:
1. Choose the right size and material: Choose the right duckbill valve size and material according to the
application needs, considering factors such as the type of fluid,
pressure and temperature.
2. Clean and prepare the pipes: Make sure the pipes are clean and free of impurities or
contaminants before installation, you can use a soft brush or cloth
to remove the dirt, and if necessary, use lubricant to help the
valve slide into position.
3. Install the valve correctly: Slide the valve to the end of the pipe, make sure the "duckbill"
is facing the flow direction, and gently slide in to avoid forcing
or damaging the valve.
4. Sealing treatment: Add a clamp to fix the valve as needed to ensure that the clamp is
tight but not to damage the valve or pipeline.
5. Test for leaks: Test for leaks after installation, make sure it is working
properly by running water or air through the pipes and checking for
signs of backflow or leakage.
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 |
FAQ
Q: Can I customize the logo?
A: Yes, we can provide OEM and ODM services for you.
Q: Is the flange galvanized?
A: Yes, we have electronic galvanized and hot-dip galvanized flanges.
We also have painted flanges.
Q: What is rubber material?
A: EPDM, CR, NBR, etc. This depends on the work environment and
media.
Q: Can you provide drawings?
A: Yes, we can provide you with the drawings of the duckbill check
valve. Please contact us to obtain the drawings of the duckbill
check valve.
Q: Can we get the sample?
A: Yes, we can provide you with samples to test the quality of our
products.
Q: What are your payment terms?
A: T/T (30% as despot, the rest 70% will be paid before delivery),
L/C at sight.
