DN500 SS304 Flange Type Sewage Rubber Duckbill Check Valve with SS316 Flange and Clamp Connection
Price:
$10~$98/pc
MOQ:
1
Delivery Time:
5-8 work days
Brand:
JINGNING
Product Description
Flange Type Sewage Rubber Duckbill Check Valve Clamp Connected Bellows Piping
A Flange Type Sewage Rubber Duckbill Check Valve with Clamp-Connected Bellows Piping is a robust, maintenance-free backflow prevention solution designed for sewage, drainage, and industrial wastewater systems. The flange-end duckbill check valve allows forward flow with minimal pressure and automatically seals when reverse pressure occurs, ensuring reliable one-way operation. Integrated with a clamp-connected rubber bellows section, the unit effectively absorbs vibration, reduces noise, and compensates for thermal expansion, misalignment, and pipe movement. This combined structure offers excellent corrosion resistance, long service life, and easy installation, making it ideal for municipal engineering, treatment plants, pump stations, and harsh fluid-handling environments where flexibility and reliable backflow control are essential.
Features & Benefits
- 100% full rubber structure that meets various anti-corrosion requirements (different rubber materials available)
- No blockage with excellent sealing capability
- Long service life with no faults and maintenance-free operation
- No moving parts, mechanical components, electric signals, or manual operation required
- Minimal opening pressure (can open with water head > 0.01M)
- Minimizes head loss in most applications
- Flexible installation options to meet customer requirements
- Convenient installation with low cost and operational expenses
Technical Specifications
| Pipe Size ID | Length | Height | Flange Outside Diameter |
|---|---|---|---|
| DN50 (NPS 2) | 150mm | 100mm | 150mm |
| DN80 (NPS 3) | 220mm | 140mm | 200mm |
| DN100 (NPS 4) | 250mm | 200mm | 225mm |
| DN150 (NPS 6) | 340mm | 265mm | 275mm |
| DN200 (NPS 8) | 420mm | 325mm | 338mm |
| DN250 (NPS 10) | 520mm | 425mm | 400mm |
| DN300 (NPS 12) | 620mm | 525mm | 485mm |
| DN350 (NPS 14) | 700mm | 625mm | 525mm |
| DN400 (NPS 16) | 800mm | 725mm | 588mm |
| DN450 (NPS 18) | 900mm | 825mm | 625mm |
| DN500 (NPS 20) | 980mm | 925mm | 688mm |
| DN600 (NPS 24) | 1120mm | 1025mm | 800mm |
Note: Custom specifications available upon request with provided drawings and standards.
Product Advantages
- Competitive factory pricing
- 17 years manufacturing experience with 5 years export experience
- Strict quality control exceeding industry standards
- Custom mold support for OEM requirements
- Free samples available
- Large inventory for quick delivery
Applications
The integrated flange and duckbill check valve design provides easy installation. The all-rubber construction prevents blockage and jamming while allowing solid particles to pass through smoothly. Ideal for:
- Waterproof systems
- Drainage systems
- Pump outlets
- Lifting pump stations
- Submerged aeration systems
Our Services
- 24-hour customer support
- Free samples available
- Customization services
- Technical drawings provided
- Multiple payment options
- Factory quality inspections
- Extended warranty period
- Secure transportation packaging
Frequently Asked Questions
Q: Can we get a sample?
A: Yes, we provide samples for quality testing.
Q: Are the flanges galvanized?
A: Yes, we offer both electronic and hot dip galvanized flanges, as well as painted options.
Q: Can the product be marked with our logo?
A: Yes, we provide OEM/ODM services including custom branding.
Q: Can you provide product drawings?
A: Yes, technical drawings are available upon request.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Shanghai Songjiang Jingning Shock Absorber Co.,Ltd.
Location
Room 1002, Xinghua Building,Zhengzhou City, China
Contact Person
Wu