9.8mm Silicone Star-shape Valve – Anti-leak One Way Check Valve

9.8mm silicone star-shape valve is a precision one-way flow control valve designed for dispensing caps and closures. Made from high-quality food-grade silicone, the valve features a flexible star-shape cut design that opens when the bottle is squeezed, allowing liquid to dispense smoothly while preventing leaks and backflow when pressure is released.

This no-drip silicone valve ensures clean and controlled dispensing, improving the user experience and reducing product waste. With excellent elasticity and durability, the valve quickly returns to its original shape after repeated use, maintaining consistent sealing and flow performance.

9.8mm star-shape valve is widely used in sport water bottles, condiment bottles, cosmetic packaging, and flip-top caps, making it an ideal solution for reliable liquid dispensing applications.

Product Information

Advantages of 9.8mm Silicone Star-shape Valve

Higher Opening Pressure – The star-shaped slit design requires relatively higher pressure to open, helping prevent accidental leakage.

Suitable for Low-Viscosity Liquids – Ideal for dispensing thin liquids such as water, beverages, or other low-viscosity fluids.

Excellent Sealing Performance – The slit closes automatically when pressure is released, preventing backflow and dripping.

Food-Grade and Safe Material – Made from high-quality silicone that meets food-contact standards.

Durable and Wear-Resistant – Maintains stable sealing and flow control even with frequent squeezing.

Wide Application – Ideal for sport bottles, condiment bottles, cosmetic packaging, and flip-top caps.

Applications of 9.8mm  Silicone Star-shape Valve

9.8 mm silicone star-shape valve is suitable for dispensing low-viscosity liquids, where a relatively higher opening pressure helps prevent leakage while ensuring controlled flow.

Typical applications include:

Sports water bottles – for water or electrolyte drinks

Sippy cups and drink lids – used in baby or training cups

Beverage bottle caps – for juice, tea, or other light drinks

Liquid soap or sanitizer dispensers – for thin liquid formulations

Household cleaning bottles – for low-viscosity cleaning solutions

These applications benefit from the valve’s leak-resistant design and controlled dispensing performance.

Why Choose YEJIA as Your 9.8mm Coated Silicone Valve Manufacturer?

1. Medical & Food Grade Material Excellence

We utilize 100% LSR (Liquid Silicone Rubber) or high-tear-strength solid silicone. Our materials are certified to meet FDA, LFGB, and ISO 10993 standards, ensuring that every 9.8mm valve is safe for sensitive medical devices and food-contact products.

2. High-Precision Slitting Technology

The performance of a star-shape valve depends entirely on the precision of the star shape cut. YEJIA employs advanced automated slitting equipment and custom-designed tooling to ensure:

Zero Leakage: Perfect closure when not under pressure.

Consistent Opening Pressure: Uniform flow rates across every batch.

Burr-Free Edges: Clean cuts that prevent material fatigue and tearing.

3. Dust-Free Manufacturing (Class 100,000 Cleanroom)

For medical and high-end consumer electronics, contamination is not an option. YEJIA operates Class 100,000 cleanrooms, ensuring your 9.8mm silicone valves are produced, inspected, and packaged in a controlled environment free from dust and impurities.

4. Custom Engineering & Prototyping

Every application has different requirements for backflow prevention and dispensing velocity. Our engineering team can fine-tune the durometer (hardness) and slit geometry of the 9.8mm valve to match your specific fluid viscosity and pressure needs.

5. Scale & Reliability: ISO 9001 & IATF 16949 Certified

With decades of experience in silicone compression and injection molding, YEJIA offers stable mass production with rigorous quality control. From initial DFM (Design for Manufacturing) to final shipping, we provide a seamless supply chain experience.

FAQ

1. What is a silicone star-shape valve?

A silicone star-shape valve, also known as an asterisk valve, is a one-way valve made from flexible silicone. It features a star-shaped slit that opens when sufficient pressure is applied and closes automatically when the pressure is released. Compared with other silicone valves, it typically has a higher opening pressure, making it more suitable for low-viscosity liquids where good leak-proof performance is required.

2. What is the difference between silicone star-shape valve and silicone cross slit valve?

Both silicone star-shape valves and cross slit valves are one-way valves made from silicone that open under pressure and close automatically to prevent leakage. The main difference lies in their slit design and suitable liquid types.

Star-shape valves usually have higher opening pressure, making them more suitable for thin liquids, where better leak-proof performance is required.

Cross slit valves typically open more easily and are therefore suitable for most medium- to high-viscosity liquids, such as sauces, gels, or thicker dispensing products.

Because of these characteristics, the choice between the two valves mainly depends on the viscosity of the liquid and the desired dispensing performance.

3. What industries use silicone star-shape valves?

Silicone star-shape valves are widely used in industries such as food and beverage packaging, baby products, personal care packaging, and household dispensing products. They are commonly applied in sports water bottles, drink lids, sippy cups, and bottle caps for dispensing low-viscosity liquids like water, beverages, or other thin fluids, where good leak-proof performance is required.

4. Can YEJIA customize the size and slit design of silicone valves?

Yes, we offer full customization, including valve size, slit type, hardness, and coating options, to meet your specific product requirements and packaging compatibility.

5. Are silicone valves food grade?

Yes. High-quality silicone valves are typically made from food-grade silicone, which complies with standards such as FDA, LFGB, or other international food safety regulations.

6. What are the advantages of silicone star-shape valves?

Silicone star-shape valves offer several advantages, including higher opening pressure, which helps prevent leakage and makes them suitable for thin liquids. They also provide excellent sealing performance, automatic closing after pressure release, and are made from food-grade silicone, ensuring safety, durability, and flexibility for various dispensing applications.

7. How does YEJIA ensure the quality and consistency of silicone star-shape valves?

YEJIA implements strict quality control at every production stage, including material inspection, precision molding, coating application, and final performance testing to ensure consistent flow, anti-drip functionality, and durability.

8. What is the MOQ for custom silicone valves?

The minimum order quantity (MOQ) for custom silicone valves depends on the valve size, mold design, and production process. YEJIA provides prototype testing samples before mass production to ensure proper performance and compatibility with your packaging system.