Overview
Our LSR injection molding leak-proof ketchup valves ensure precise, drip-free dispensing for food packaging. Manufactured from certified food-grade Liquid Silicone Rubber, these valves offer reliable self-sealing and consistent flow control. We provide full OEM services for custom sizes, cracking pressure, and flow rates, delivering tailored solutions for your condiment, sauce, and liquid food packaging needs.
Basic Information
| Specification | Details |
|---|---|
| Place of Origin | Xiamen, China |
| Brand Name | OEM / White Label |
| Material | Food Grade Liquid Silicone Rubber (LSR), FDA/LFGB compliant |
| Molding Process | Precision LSR Injection Molding |
| Valve Type | Umbrella / Duckbill / Cross-Slit (Custom Design) |
| Cracking Pressure | Customizable (typically 0.5 – 5 psi) |
| Operating Temperature | -60°C to +200°C |
| Certifications | ISO 9001, FDA, LFGB, ROHS |
| Sample | Available |
| Production Lead Time | 18-30 days (after sample approval) |
| Packaging | Custom (PE bags, bulk box) |
| Logo | Custom molded-in or laser marked |
| MOQ | Low minimums accepted |
Benefits of Our Products:
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Precise Flow Control: Engineered valve geometry ensures consistent, user-controlled dispensing of viscous to liquid products, minimizing waste and mess.
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Reliable Leak-Proof Seal: The flexible silicone design provides positive, automatic sealing against back-pressure, preventing leakage and maintaining product freshness.
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Food-Safe & Durable Construction: Certified food-grade LSR offers excellent chemical resistance, long-term flexibility, and withstands repeated sterilization cycles.
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Full Customization & OEM Integration: Complete flexibility in valve design, dimensions, performance characteristics, and branding to seamlessly integrate with your specific packaging format.
Manufacturing Process:
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Design & Engineering: We analyze your fluid viscosity and packaging requirements to design the optimal valve geometry (umbrella, duckbill, etc.) for performance.
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Precision Mold Fabrication: Multi-cavity, hot-runner molds are CNC machined and finished using EDM technology to achieve micron-level tolerances on critical sealing surfaces.
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LSR Injection Molding: Medical-grade cleanroom conditions house our LSR injection presses, ensuring contamination-free production of each valve.
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Post-Curing & Deflashing: Valves are post-cured for optimal physical properties and then automatically deflashed to ensure perfect, flash-free edges.
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100% Functional Quality Testing: Every single valve undergoes automated leak testing. Statistical samples are tested for precise cracking pressure and flow rate verification.
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Custom Branding & Packaging: Valves are marked with logos if required and packaged according to your specifications for assembly-line integration.
Factory Show:
Our dedicated LSR manufacturing facility operates under a controlled cleanroom environment. We utilize high-precision, multi-cavity molds produced in-house with CNC machining and Wire-EDM centers. A dedicated bank of LSR injection molding presses ensures high-volume, consistent output. Quality is embedded in the process through in-line automated optical inspection (AOI) and 100% functional leak testing on custom-built pneumatic test stations. Certified to ISO 9001 and compliant with food safety standards, our vertically integrated operation—from material compounding to final testing—guarantees the production of reliable, high-performance, and safe leak-proof valves for the global food packaging industry.
