EPDM flange type DN100 duckbill rubber check valve for sewage
discharge corrosion abrasion weather resistance
Installation method
1. Prepare for installation: Ensure that the installation environment meets the requirements,
including checking the caliber of the flange, pressure level,
material and the material of the rubber body of the duckbill valve
to ensure that they are suitable for the installation environment.
At the same time, consider factors such as temperature, humidity
and medium of the installation environment.
2. Check the pipe end face: Use tools and methods to check the pipe end face to ensure that
the inclination deviation of the cut end face does not exceed 1% of
the outer diameter of the pipe and does not exceed 3mm. This is to
ensure the tightness and safety of the flange connection.
3. Flange connection: Use the flange angle ruler to check the verticality of the flange
to ensure that the flange and the pipe are connected
concentrically, and the bolts can be freely penetrated. The flanges
should be parallel, and the deviation should not be greater than
1.5/1000 of the outer diameter of the flange, and should not exceed
2mm. Use bolts of the same specification for connection, each bolt
should not be installed with more than one washer, and the bolt
should be flush with the nut when fastening to ensure that the
connection is tight and seamless.
4. Increase gasket: Add gasket when connecting the flanged duckbill valve to ensure
that the gasket size is consistent with the flange sealing surface,
and the surrounding size is neat. The flange shall not be buried in
the ground, and the flange of the buried pipeline or the pipeline
that does not pass through the ditch shall be provided with
inspection wells.
5. Precautions: Attention should be paid to avoid the phenomenon of pressure
deviation during installation, so as to prevent the medium from
leaking out of the pressure deviation and affecting the safety of
the pipeline. At the same time, flange connections should avoid
installation in floors, walls and casings.
Functions
1. Automatically open and close according to the water pressure
difference, safe and reliable.
2. The positive opening has low water resistance, low starting
pressure, and the flow rate is automatically adjusted according to
the water pressure.
3. The reverse check has good sealing performance, no leakage, and
prevents backflow. The greater the back pressure, the better the
effect.
4. Anti corrosion, anti-aging, strong adaptability, and long
service life.
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: What is rubber material?
A: EPDM, CR, NBR, etc. This depends on the work environment and
media.
Q: Is the flange galvanized?
A: Yes, we have electronic galvanized and hot-dip galvanized
flanges. We also have painted flanges.
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 the pressure of work?
A: 1.0-2.5Mpa.
