Anti-reflux weather resistant flexible EPDM rubber drainage one-way
duckbill check valve
Product Introduction
First, structural characteristics
Flanged rubber duckbill valve is mainly composed of valve body,
valve seat, valve disc, flange and other components.
The valve body is usually made of materials such as cast iron, cast
steel, or stainless steel, which has good corrosion resistance and
mechanical strength.
The seat and disc are made of high-quality rubber material with
good elasticity and wear resistance. The flange connection of the
valve is usually in the form of clamp type or flat welded type,
which is convenient for quick connection and disassembly with the
pipeline.
Second, the working principle
When the fluid passes through the valve, the disc automatically
opens under the action of fluid pressure, allowing the fluid to
pass smoothly.
When the fluid stops flowing, the disc automatically closes under
its own gravity and the pressure in the pipe, preventing the fluid
from backing up or leaking.
Because the valve disc is made of rubber material, it has a certain
elasticity, so the valve has a good cushioning effect in the
process of opening and closing, which reduces the impact and
vibration of the fluid on the pipeline.
Third, the field of application
Flanged rubber duckbill valves are suitable for various fluid
media, such as water, sewage, air, steam, etc. It is widely used in
the pipeline system of construction, environmental protection,
chemical, food and other industries to control the flow, pressure
and direction of fluids. Especially in the field of sewage
treatment and discharge, the valve is widely used due to its good
sealing and corrosion resistance.
Fourth, installation and maintenance
When installing a flanged rubber duckbill valve, make sure that the
connection between the valve and the pipe is clean, dry and free of
oil. The flange joint should be tightened with suitable sealing
gaskets and bolts to ensure a firm and reliable connection.
During the use of the valve, the opening and closing status of the
valve should be checked regularly to ensure that it is working
properly. At the same time, it is necessary to regularly clean the
debris and dirt in the valves and pipes to keep the fluid clean and
unblocked.
In short, as an efficient and reliable fluid control equipment,
flanged rubber duckbill valve has been widely used in various
fields.
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 |
Packaging display
FAQ
Q: Is the flange galvanized?
A: Yes, we have electronic galvanized and hot-dip galvanized
flanges. We also have painted flanges.
Q: What is the minimum order quantity?
A: 1 piece, you can also use it as a sample to test the quality of our
product, and then you can order from us.
Q: Can I customize the logo?
A: Yes, we can provide OEM and ODM services for you.
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: What is rubber material?
A: EPDM, CR, NBR, etc. This depends on the work environment and media.
Q: Can we get the sample?
A: Yes, we can provide you with samples to test the quality of our
products.
