8-Inch EPDM Flanged Duckbill Check Valve with 420mm Length and 338mm Flange OD for Weather-Resistant Backflow Prevention
Price:
$40 set
MOQ:
1 set
Delivery Time:
5-12 work days
Brand:
Lianghe
Product Description
Product Overview
The 8-inch Weather Resistance Rubber EPDM Flanged Duckbill Check Valve is engineered for superior performance in demanding fluid control applications. Constructed from high-quality EPDM rubber with reinforced synthetic fibers, this valve features a unique duckbill design that ensures reliable backflow prevention and efficient fluid discharge.
Design & Construction
Manufactured through specialized processing techniques, the duckbill valve maintains a closed position under zero pressure conditions due to its inherent elasticity. As internal pressure increases, the duckbill outlet gradually opens, enabling high-flow-rate liquid discharge while preventing reverse flow.
Product Structure
Technical Specifications
Flanged Rubber Duckbill Check Valve Dimensions
| Type | Nominal Diameter (mm) | Length (mm) | Height (mm) | Flange OD (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 |
Note: The above data is for reference only. Custom sizes and pressure ratings available upon request.
Key Functions
Prevents floodwater intrusion into sewer systems and basement streets
Controls water level rising in sewage treatment plants and drainage pumping stations
Prevents sewage backflow and odor diffusion
Provides reliable drainage system protection
Applications
Ideal for municipal water management, industrial drainage systems, flood control infrastructure, sewage treatment facilities, and basement waterproofing applications.
Packaging & Shipping
Frequently Asked Questions
Q: Can you make the product as per client's requirement?
A: Yes, we can manufacture according to your exact specifications.
Q: What are your payment terms?
A: T/T (30% deposit, 70% balance before delivery) or L/C at sight.
Q: Where is your nearest loading port?
A: Shanghai, Qingdao, or Tianjin, China.
Q: How can you guarantee the quality or any warranty?
A: Comprehensive quality control including specification verification, material inspection, and appearance assessment. Third-party inspection supported.
Q: Do you accept small quantity orders?
A: Yes, we accept orders of all quantities.
Q: What is your shipment and delivery time?
A: Shipping by sea or air. Standard delivery time 7-14 days depending on order quantity.
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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
Henan Lianghe Pipeline Equipment Co.,Ltd
Location
Pipeline Industrial Park, Gongyi City, Henan Province, China
Contact Person
Kelly