Custom Food Grade Non-Return One Way Silicone Duckbill Valve

Overview

Our Custom Food Grade Non-Return One Way Silicone Duckbill Valve is engineered for reliable, leak-proof flow control in packaging. Precision molded from certified LSR, its simple design allows forward flow while sealing tight against back-pressure. We offer full OEM services for custom sizing, cracking pressure, and flow rates, delivering a tailored solution for liquid and viscous food applications.

Basic Information:

Production Process:

1. Design & Engineering: We analyze your fluid viscosity and packaging system to engineer the duckbill geometry, wall thickness, and durometer for specified performance.

2. Precision Mold Manufacturing: Multi-cavity, hot-runner molds are CNC machined and finished with EDM/Wire-Cutting to achieve the critical slit and sealing surfaces.

3. LSR Injection Molding: Food-grade LSR is injection molded in a controlled environment, forming the flexible, one-piece valve structure with high consistency.

4. Post-Curing & Deflashing: Valves are post-cured for optimal properties and then automatically deflashed to ensure clean, functional edges.

5. 100% Functional & Dimensional QC: Every valve undergoes automated leak testing. Statistical samples are tested for cracking pressure, flow rate, and dimensional accuracy.

6. Custom Branding & Packaging: Valves are packaged per specifications, with optional molded-in logos, and prepared for shipment.

Why Partner with Us for Your Manufacturing Needs?

1. Specialization in Functional Silicone Components: With deep expertise in LSR molding for fluid management, we engineer valves that deliver reliable, repeatable performance in demanding packaging environments.

2. Complete, Application-Focused Customization: We provide end-to-end OEM collaboration, tailoring the valve’s design and performance parameters to solve your specific venting, dispensing, or contamination-prevention challenges.

3. Integrated, Quality-Driven Manufacturing: Our vertical control over the entire process—from mold making to final testing under ISO 9001—ensures superior consistency, secure IP protection, and reliable supply.

4. Proven Partner for Packaging Integrity: Our experience supplying critical components for food, beverage, and medical packaging makes us a trusted partner to enhance your product’s shelf life and safety.

Factory Overview:

Our manufacturing facility features dedicated cleanroom LSR injection molding cells. We utilize high-precision, multi-cavity molds produced in-house with CNC machining and Wire-EDM technology. A dedicated bank of LSR injection presses ensures high-volume, consistent output. Quality is integrated through in-line automated optical inspection and 100% functional testing using custom pressure decay leak testers. Certified to ISO 9001 and compliant with global food safety standards, our vertically integrated operation guarantees the production of reliable, high-performance duckbill valves for the packaging industry.