Overview
The OEM Leak-Proof Liquid Silicone Rubber (LSR) Injection-Molding Umbrella Valve is a precision, one-way sealing component engineered for demanding fluid-control applications. Molded from high-purity LSR via automated two-component metering and injection systems, our umbrella valves deliver reliable one-way flow, rapid response, and long service life while maintaining excellent chemical and thermal stability. Designed for OEM integration, these valves are fully customizable in geometry, durometer, color, and packaging to match your product requirements — from medical devices and consumer appliances to beverage systems and automotive fluid assemblies.
Basic Information for Umbrella Valves
| Attribute | Details |
|---|---|
| Material | Liquid Silicone Rubber (LSR) — medical/food-grade options |
| Place of Origin | Xiamen, China |
| Brand Name | OEM |
| Manufacturing Method | High-precision LSR Injection Molding (two-component metering) |
| Size | Custom (ID/OD/thickness per drawing) |
| Color | Any Pantone color; natural/translucent also available |
| Hardness | Typical range Shore A 20–80 (customizable) |
| Tensile Strength | ≥ 7 MPa (typical; spec per compound available) |
| Elongation at Break | ≥ 300–500% (compound dependent) |
| Temperature Range | –60 °C to +230 °C (depending on compound) |
| Packaging | OPP bag, vacuum sealed tray, blister pack, paper box, or custom packaging |
| Logo | Laser etch, pad print, or mold embossing — customizable |
| OEM | Available |
| MOQ | Small orders accepted |
| Sample | Samples available upon request |
| Technology | Liquid Silicone Rubber (LSR) Injection Molding, Automated Metering, Hot-runner molds |
| Typical Applications | Medical devices, infant feeding systems, breath valves, pumps, consumer appliances, automotive and industrial fluid connectors |
Key Benefits of Umbrella Valves
- True Leak-Proof Design — engineered umbrella geometry and tight tolerances create a reliable one-way seal under backpressure and vibration.
- High Purity & Safety — medical/food-grade LSR options available that resist staining, odor, and leaching.
- Fast Dynamic Response — thin, flexible membrane returns quickly for repeatable flow control.
- Wide Operating Temperatures — performs reliably across extreme cold and high-heat environments.
- Scalable OEM Production — automated LSR lines for low-to-high volume with consistent part quality and low scrap.
- Design Flexibility — multiple shore levels, integrated flanges, molded features, and overmolding with thermoplastics possible.
Quality Assurance for Umbrella Valves
Our quality assurance for the LSR Injection-Molded Umbrella Valve combines accredited management systems with process-level controls to guarantee performance and compliance. We are ISO 9001 certified, and our LSR compounds are produced to meet FDA food-contact and medical-grade requirements where requested. Each production lot undergoes in-line process monitoring (temperature, pressure, shot weight), 100% visual inspection for flash and forming defects, and sample-based mechanical and functional testing — including dimensional verification with CMM, hardness checks with durometers, tensile testing, and automated pressure/leak tests (bubble, back-pressure and burst testing). For medical customers we can implement ISO 13485 processes and full traceability for raw materials and lot codes.
Why Partner with Us for Your Umbrella Valve
- Proven LSR Injection Expertise — decades of experience running automated LSR metering and injection processes for high-precision, low-tolerance elastomer components.
- End-to-End OEM Support — part design review, mold development, material selection, pilot runs, and volume production with turnkey logistics.
- Rapid Prototyping & Tooling — in-house mold design and machining with quick-turn prototypes to accelerate product development cycles.
- Stringent Functional Testing — we validate leak performance, cycle life, and mechanical properties to ensure fit-for-purpose reliability.
- Flexible Volume Capability — capable of supporting small batch sampling through millions of parts per year with consistent quality control.
- Regulatory Readiness — materials and processes suitable for FDA, EU food-contact, and medical device supply chains; documentation and testing packages available upon request.
Factory Show
Our advanced production facility is configured specifically for high-precision LSR manufacturing. We operate multiple automated LSR injection molding cells with closed-loop temperature and pressure control, precision hot-runner molds, and automated robotic part extraction to eliminate handling contamination. Tooling is produced in-house using CNC machining centers, EDM and precision milling to ensure cavity tolerances required for leak-proof seals. Post-processing capabilities include thermal post-cure ovens, automated trimming, ultrasonic welding/overmolding with thermoplastics, and cleanroom assembly lines for medical/infant applications. Inspection and test equipment include CMMs, automated pressure/leak test rigs, tensile testers, durometers, and in-line vision systems — all overseen by our certified QA team to ensure traceability, repeatability, and on-time delivery.
