8 Inch 4 Inch Duckbill Check Valve Wastewater Discharge Flanged Epdm Rubber Non-Return
Industrial Wastewater Discharge Flanged Corrosion And Wear Resistant Epdm Duckbill Rubber Non-Return Valve
Product Description
The duckbill check valve is made of resilient neoprene and artificial fibres, which are specially processed to resemble a duck's beak, hence the name duckbill valve. In the absence of internal pressure, the mouth of the duck closes under the action of elasticity. As the internal pressure increases, the outlet of the duckbill gradually increases and the liquid can be discharged at a high flow rate.
Functionality
Rubber duckbill valves prevent flooding and water intrusion into basement sewers and streets, avoiding major damage, preventing water levels from rising, flooding into sewage treatment plants, drainage pumping stations, preventing the spread of sewage or liquid odours, and preparing for drainage.
Specifications
| Type | Nominal diameter of pipe | Length | Height | External diameter of flange |
| XH8150-125-X | 50 | 125 | 47 | 150 |
| XH8180-175-X | 80 | 175 | 72 | 200 |
| XH81100-225-X | 100 | 225 | 97 | 225 |
| XH81150-320-X | 150 | 320 | 47 | 275 |
| XH81200-375-X | 200 | 375 | 197 | 338 |
| XH8125-475-X | 250 | 475 | 247 | 400 |
| XH81300-560-X | 300 | 560 | 297 | 485 |
| XH81300-560-X | 350 | 625 | 344 | 525 |
| XH81400-700-X | 400 | 700 | 394 | 588 |
| XH81450-780-X | 450 | 780 | 444 | 625 |
| XH81500-880-X | 500 | 880 | 494 | 688 |
| XH81600-1000-X | 600 | 1000 | 494 | 800 |
| XH81700-1000-X | 700 | 1100 | 694 | 969 |
| XH81800-1260-X | 800 | 1260 | 794 | 1080 |
| XH81900-1400-X | 900 | 1400 | 894 | 1150 |
| XH811000-1520-X | 1000 | 1520 | 988 | 1250 |
| XH811200-1725-X | 1200 | 1725 | 1188 | 1485 |
Packaging & Shipping
- Inner package: plastic bag + carton cases (one pcs/box)
- Outer package: wooden cases
Our Services
- High quality products at competitive prices
- Extensive industry experience
- Short delivery times
- Timely shipping
- Custom requirements fulfillment
Custom Services
OEM&ODM service: We specialize in producing expansion joints according to your samples, drawings, or specific requirements and applications.
After-sale service: Professional service team with all-weather emergency telephone support to resolve issues within 48 hours.
Product Application
Company Information
Frequently Asked Questions
Q: Are you a trading company or a manufacturer?
A: We are manufacturers of rubber expansion joints, bellows expansion joints, flexible metal hoses, disassembly joints, flange adapters and flanges with over 30 years experience.
Q: Can you make the product as per client's requirement?
A: Yes, we can make it with your exact requirement.
Q: How can you guarantee the quality or any warranty?
A: If any quality problems during use, all the products can be returned or according to consumer's requests.
Q: Can we choose different material?
A: Yes, the material can be chose according to your requirement.
Q: Do you provide samples? Is it free or charged?
A: Yes, we can offer sample free but shipping charges covered by customer.
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's your packing?
A: Carton cases inside, export wooden cases outside.
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