Overview
Our custom high-quality duckbill check valves ensure reliable, one-way flow control for liquids and gases. Precision-molded from durable elastomers via LSR injection molding, they offer positive sealing and long service life. We provide complete OEM solutions for custom sizing, cracking pressure, and flow rates tailored to your application.
Characteristics
| Specification | Details |
|---|---|
| Product Name | Duckbill Check Valve / One-Way Valve |
| Material | Liquid Silicone Rubber (LSR), FKM, EPDM, NBR (Custom) |
| Valve Type | Standard Duckbill, Flanged, Barbed End |
| Cracking Pressure | 0.1 – 5.0 psi (Fully Customizable) |
| Flow Rate | Customized based on bill geometry & size |
| Temperature Range | -60°C to +200°C (LSR), Material Dependent |
| Certifications | FDA (for LSR), ROHS, REACH, ISO 9001 |
| MOQ | Small Order Accepted |
| Logo/Branding | Molded-in or Laser Marked |
| Key Feature | No Moving Parts, Self-Sealing, Low Crack Pressure |
| Connection Size | Custom (ID/OD, Barb Sizes, Flange Dimensions) |
| Packing | PE Bag, Box, or Custom Bulk Pack |
| Material Options | Medical Grade, Food Grade, Chemical Resistant |
| Trademark | OEM / White Label |
| Origin | Xiamen, China |
| Production Capacity | 5+ Million Pieces Per Month |
OEM Process for Duckbill Check Valves
-
Application & Specification Submission: Share your fluid/gas media, pressure requirements, flow direction, and connection type. Provide any existing drawings (STEP, IGS, PDF).
-
Engineering Review & Quotation: Our fluid dynamics engineers analyze your needs, recommend bill geometry and material, and provide a detailed technical quotation.
-
Prototype Development & Testing: We produce functional prototypes for you to test cracking pressure, flow, and sealing performance. Design iterations are made as needed.
-
Approval & Commercial Setup: Upon prototype approval, a proforma invoice is issued for the production mold and initial order deposit.
-
Precision Mold Fabrication & T1 Sample: Multi-cavity, hot-runner LSR molds are manufactured. First article samples (T1) are produced and submitted with test data.
-
Mass Production & 100% Testing: Full-scale production begins. Each valve undergoes 100% automated leak testing. Batch samples are tested for crack pressure and flow.
-
Delivery: Valves are packaged per your instructions and shipped.
Why Choose Us
-
Expertise in Fluid Control Component Design: We specialize in engineering and molding precision duckbill valves, optimizing bill thickness, slit design, and material for specific performance criteria.
-
Complete Application-Driven Customization: We partner with you to develop valves for unique applications—from medical devices to industrial equipment—offering full control over every performance and dimensional parameter.
-
Vertical Integration with Certified Quality: Our in-house mold making, cleanroom LSR molding, and automated testing under ISO 9001 ensure superior consistency, traceability, and reliable supply.
-
Proven Partner for Critical Performance Components: With a track record in demanding industries, we are a trusted OEM supplier for valves where reliability, consistency, and zero-defect performance are non-negotiable.
Factory Show
Our manufacturing is centered on dedicated cleanroom LSR injection molding cells for medical and food-grade valves, and separate high-efficiency lines for industrial elastomers. We utilize high-precision, multi-cavity molds produced with CNC machining and Wire-EDM technology. Automated vision systems inspect each valve, and 100% are functionally tested on custom pressure decay and crack pressure testers. Operating under a certified quality management system, our integrated facility guarantees the production of high-performance, reliable duckbill check valves.
