Overview
Our OEM Food-Grade 9.8mm Liquid Injection-Molded Silicone Non-Return Valves with precision cross-slit geometry are engineered for reliable one-way flow control in foodservice, condiment, beverage enhancer, and travel bottle applications. Manufactured from 100% food-grade liquid silicone rubber (LSR) via high-precision injection molding and micro-slit tooling, these 9.8mm non-return valves deliver drip-free dispensing, fast reseal, and consistent opening pressure across large production runs. Cleanroom assembly, full material traceability, and customizable slit dimensions make them ideal OEM components for leak-proof consumer packaging.
Basic Information
| Attribute | Details |
|---|---|
| Place of Origin | Xiamen, China |
| Brand Name | OEM / Private Label |
| Product Type | 9.8mm Non-Return (One-Way) Cross-Slit Valve |
| Material | Food-grade LSR (FDA & LFGB compliant) |
| Nominal OD | 9.8 mm |
| Typical Cross-Slit Size | 2.0–4.0 mm (customizable) |
| Hardness | Shore A 20–70 (customizable) |
| Tolerance | ±0.01 mm |
| Temperature Range | -40 °C to +230 °C |
| Certifications | ISO 9001 factory; materials: FDA, LFGB; RoHS available |
| MOQ | Small orders accepted |
| Sample Lead Time | 5–7 business days |
| Production Lead Time | 15–25 business days |
| Packaging | Bulk, tray, or sterile vacuum pack (custom) |
Key Benefits
- Drip-proof performance: Cross-slit design enables rapid reseal to prevent dripping and backflow.
- Food-safe materials: Manufactured from FDA & LFGB-approved LSR — BPA-free and odorless.
- Consistent dosing: Tunable opening pressure and slit geometry for repeatable dispensing feel and flow rate.
- Scalable OEM production: Micro-tooling and automated LSR presses provide tight tolerances across high volumes.
Quality Assurance
We enforce a rigorous QA program tailored to food-contact components: incoming LSR lots are certified and lot-tracked; molds undergo validation trials; dimensional control is performed with 3D optical projectors and CMM sampling; functional tests include opening-pressure calibration, pressure-decay leak testing, and lifecycle actuation (fatigue) testing. Thermal cycling and chemical-resistance checks ensure long-term performance. Full test reports, material certificates, and batch traceability are supplied with each shipment.
Type of Silicone Valves
- Standard Cross-Slit 9.8mm — balanced opening pressure for general sauces and condiments.
- Low-Pressure Cross-Slit — optimized for thin liquids and effortless dispensing.
- High-Pressure Cross-Slit — engineered for viscous products (ketchup, honey) with reinforced geometry.
- Flange / Collar Variants — snap-in, press-fit, or molded collars for secure cap integration.
Factory Capabilities
Our production campus integrates precision LSR injection molding with micro-tooling created by CNC machining, Mirror EDM and slow-speed wire cutting to produce ultra-fine slit tooling. We operate multiple automated LSR presses, cleanroom assembly lines, and test rigs for opening-pressure, leak and fatigue testing. Inspection assets include ZEISS CMMs, 3D optical projectors, durometers and automated leakage testers. ISO-compliant processes and automated packaging (sterile or bulk) allow rapid prototyping through high-volume delivery with consistent quality.
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