Check Valves No Moving Parts
Rubber Duckbill Check Valve Flanged Wastewater Backflow Preventer
Duckbill Check Valve for outfalls, drainage, seawater and flood protection, available in DN50–DN2000 at Low Pressure, with Flanged or Slip-On connections and configurable operation.
Quick Specifications
- Type
- Duckbill Check Valve
- Size
- DN50–DN2000
- Material
- EPDM / Neoprene Rubber
- Pressure
- Low Pressure
- Connection
- Flanged or Slip-On
- Temperature
- -20 to 80°C
Product Details
A flexible rubber sleeve opens under forward differential pressure and closes flat when flow stops, with no metal hinge or external moving parts. Fabric reinforcement and flange dimensions are selected for tidal, drainage or outfall service. This duckbill check valve is designed for outfalls, drainage, seawater and flood protection and is available in DN50–DN2000 with Flanged or Slip-On connections. Body and trim materials, seat or seal system, operating characteristic, actuator, coating and inspection documentation can be configured to the actual pressure, temperature, medium and project specification. Where applicable, manual, pneumatic, electric, hydraulic or self-operated configurations are available. Shell and seat testing, dimensional inspection and material traceability records can be provided with the order.
Specifications
| Parameter | Value |
|---|---|
| Model | GS-CV-RUBBER |
| Design Standard | Project specification |
| Size Range | DN50–DN2000 |
| Pressure Rating | Low Pressure |
| Body Material | EPDM / Neoprene Rubber |
| End Connection | Flanged or Slip-On |
| Temperature Range | -20 to 80°C |
| Typical Application | Outfalls, drainage, seawater and flood protection |
| Operation | Manual, automated or self-operated |
| Documentation | Pressure test and material reports available |
FAQ
How do you handle shipping and logistics?
We offer flexible shipping options including FOB, CIF, CFR, and DDP terms. Products are shipped via sea freight (most economical for bulk orders), air freight (for urgent/smaller orders), or courier (DHL/FedEx/UPS for samples). We handle all export documentation including commercial invoice, packing list, certificate of origin, and inspection certificates.
What is your minimum order quantity (MOQ)?
Minimum Order Quantity (MOQ) varies depending on product type and customization requirements. For standard products, the MOQ is typically 1 to 10 pieces. For OEM/ODM projects, the MOQ is typically 50 to 1000 pieces, depending on the complexity of the product. We welcome small sample orders for quality assessment.
What is the typical lead time for orders?
Standard products in stock: 7-15 days. Custom OEM orders: 30-60 days depending on specifications and quantity. We provide detailed production schedules and keep you updated throughout the manufacturing process. Rush orders can be accommodated for urgent requirements.
Need This Product for Your Project?
Send us your required size, material, pressure rating, quantity or applicable standard, and our team will review your requirement.
