Overview
Our Custom 9.6mm Food-Grade Leak-Proof Liquid Silicone One-Way Valves for Plastic Water Enhancer Bottles are engineered for dependable, mess-free dispensing of concentrated liquids. Manufactured from 100% FDA- and LFGB-compliant liquid silicone rubber (LSR) using precision LSR injection molding and micro-slit die cutting, these 9.6 mm valves deliver consistent one-way flow, excellent sealing, and low opening pressure for smooth user experience in water enhancer and sports bottle applications. Fully customizable in slit geometry, hardness, and transparency, they integrate easily into plastic caps and closures for OEM bottle systems.
Basic Information
| Attribute | Details |
|---|---|
| Place of Origin | Xiamen, China |
| Product Name | 9.6mm Food-Grade Leak-Proof LSR One-Way Valve |
| Brand Name | OEM / Custom Branding |
| Material | 100% food-grade liquid silicone rubber (LSR) |
| Size / ID | 9.6 mm nominal diameter (custom sizes available) |
| Shape | Cross-slit / duckbill / umbrella / custom slit patterns |
| Hardness | Shore A 30–70 (customizable) |
| Temperature Range | -40 °C to +230 °C (-40 °F to +446 °F) |
| Molding Process | LSR Injection Molding / Silicone Compression Molding |
| Certifications | ISO 9001, FDA, LFGB, RoHS (others on request) |
| MOQ | Small orders accepted |
| Sample Lead Time | 5–7 business days |
| Production Lead Time | 15–25 business days (tooling dependent) |
| Packaging | Custom protective packaging for caps/closures |
| OEM Services | Full design support, tooling, molding, assembly |
Key Benefits
- True leak-proof performance with precision cross-slit geometry to prevent backflow and dripping.
- Low and consistent opening pressure for smooth, single-hand dispensing.
- Food-grade LSR gives excellent chemical resistance, odorless performance, and wide temperature tolerance.
- One-piece design for easy assembly into plastic caps and reduced assembly cost.
- Factory-direct OEM support: custom colors, logos, and turn-key supply chain capability.
Quality Assurance
We apply a rigorous QA program to ensure every valve meets food-contact and functional requirements. Incoming LSR is batch-tested for composition and purity; production parts undergo dimensional inspection with 3D optical projectors and CMM checks, Shore A hardness testing, tensile and tear strength verification, and automated leak/pressure decay tests to validate one-way sealing and opening pressure. Thermal aging, chemical compatibility, and actuation fatigue tests are performed per batch. Full traceability, lot coding, and QC reports accompany shipments.
Factory Capabilities
Our manufacturing campus features advanced tooling and molding capabilities — CNC machining, mirror EDM, wire EDM, and precision slow-speed wire cutting for micro-slit mold fabrication. Production lines include automated LSR injection molding cells, rubber compression presses, and clean assembly stations. We use 3D projectors, sealing testers, durometers, and automated leakage testers for inline QC. Automation (AutoDryers, high-speed demolding and die-cutting) ensures consistent output. All processes operate under ISO 9001 quality systems with food-grade material controls and OEM service support.
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