Overview
Our OEM Food Safe Silicone Rubber Check Valves with Cross Slit are engineered for precise, leak-proof dispensing in food and condiment packaging. Crafted from certified FDA/LFGB silicone via high-precision LSR injection molding, the cross-slit design ensures reliable one-way flow and immediate sealing. We offer comprehensive OEM services for custom sizes, flow rates, and branding, providing tailored solutions for sauces, dressings, and liquid products.
Basic Information
| Attribute | Details |
|---|---|
| Place of Origin | Xiamen, China |
| Brand Name | OEM |
| Material | Food-Grade Liquid Silicone Rubber (LSR) |
| Valve Type | Check Valve / One-Way Valve with Precision Cross Slit |
| Cracking Pressure | 0.5 – 10.0 psi (Fully Customizable) |
| Operating Temperature | -60°C to +230°C |
| Color | Customized (Natural, White, Transparent) |
| Logo | Accept Molded-in Embossing or Laser Etching |
| Key Size (e.g., OD) | Custom (Common Range: 8mm to 25mm) |
| Sample | Available |
| Certification | FDA, LFGB, ROHS, ISO 9001 |
| Lead Time (Production) | 25-35 Days |
| Packing | Custom Packaging |
Benefits of Our Cross Slit Check Valves
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Precise, Controlled Dispensing: The engineered cross-slit geometry allows for consistent, user-defined flow rates—ideal for everything from thick ketchup to liquid oils—while preventing unwanted dripping.
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Reliable Anti-Backflow & Sealing: The flexible slits open under gentle pressure for dispensing and snap shut instantly to create a positive seal against backflow, contamination, and leakage, maintaining product freshness.
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Certified Food Safety & Durability: Manufactured from premium, platinum-cured LSR compliant with global food contact standards. Offers excellent chemical resistance, longevity, and maintains performance across extreme temperatures.
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Full OEM Design Integration: We collaborate to tailor every aspect—valve dimensions, slit length/depth, durometer (hardness), and cracking pressure—for optimal performance within your specific cap and packaging system.
Quality Assurance
Our quality assurance process for cross slit valves is built on certified systems and rigorous functional validation. Operating under an ISO 9001 quality management system, we begin with certified FDA/LFGB-compliant LSR material verification. During production, 100% of valves undergo automated pressure decay leak testing to guarantee seal integrity. Statistical process control (SPC) is implemented, with batch samples tested for precise cracking pressure and flow rate consistency using digital flow meters. Additionally, the critical cross-slit dimensions and geometry are verified using optical measurement systems to ensure cutting precision and performance repeatability, backed by full batch traceability.
Factory Show
Our manufacturing facility features dedicated cleanroom environments for precision LSR molding. We utilize multi-cavity, hot-runner molds fabricated in-house with high-speed CNC machining and Mirror EDM technology, essential for creating the ultra-precise slit-forming surfaces. The production floor is equipped with automated LSR injection molding machines for high-volume, consistent output. Quality control is integrated with automated optical inspection (AOI) systems for defect detection and custom-designed pneumatic test stations for 100% functional verification. This vertically integrated, ISO 9001 and IATF 16949 certified operation ensures the efficient production of reliable, high-performance silicone check valves for the global packaging industry.