Model No.: HWSV13
Outer Diameter: 12.5mm
Cross Slit Size: 4.1mm
Application: Liquid Toothpaste
MOQ: 50,000pcs/ lot
Samples: Free Samples, Freight Collect
The 12.5mm non return valve is a precision silicone duckbill check valve specially designed for liquid toothpaste dispensing systems and one-way fluid control applications. With its optimized slit structure, the valve helps provide smooth product extrusion while effectively preventing backflow, leakage, and contamination inside the packaging container.
This silicone non-return valve features a unique umbrella-style outer shape combined with a duckbill sealing structure at the bottom. The middle section is designed with an integrated undercut structure, allowing direct snap-fit assembly into plastic housings without requiring additional fixing accessories, which helps simplify assembly and reduce production cost.
Manufactured from 50A hardness solid silicone material, the valve offers excellent toughness, flexibility, and deformation resistance. The optimized duckbill structure provides relatively high opening pressure together with reliable sealing performance, making it suitable for liquid dispensing and controlled gas venting applications.
Made from eco-friendly food-grade solid silicone rubber, the valve maintains stable mechanical properties and excellent elastic recovery during long-term use. Even after repeated compression and dispensing cycles, the silicone material continues to provide consistent sealing performance and smooth dispensing operation.
Silicone material also offers outstanding weather resistance and can operate under temperatures ranging from -40°C to 200°C. The valve has strong resistance to aging, moisture, and environmental changes, helping ensure stable performance in different application conditions.
The 12.5mm non return valve is widely used in toothpaste packaging, cosmetic dispensing systems, squeeze bottles, and various liquid control applications requiring reliable one-way sealing performance. Its stable silicone elasticity and precise slit design help improve dispensing consistency and user experience.
Hopewell specializes in precision silicone rubber valves and supports custom non-return valve development based on customer drawings and application requirements. Slit size, dimensions, hardness, color, and opening pressure can all be customized for different dispensing systems.
Item Name | 12.5mm Non Return Valve |
Material | FDA Food Safe Solid Silicone |
Process | Compression Molding |
Color | Clear |
Hardness | 50 Shore A |
Outer Diameter | 12.5mm |
Cross Slit Size | 4.1mm |
Application | Liquid Toothpaste |
Liquid Toothpaste Packaging:
Specially designed for liquid toothpaste dispensing systems requiring smooth extrusion, anti-backflow sealing, and stable dispensing performance.
Cosmetic & Personal Care Products:
Suitable for lotion bottles, cream dispensers, shampoo packaging, and other personal care dispensing systems.
Liquid Dispensing Containers:
Used in squeeze bottles and liquid packaging applications requiring one-way flow control and leak-proof sealing.
Air Venting Systems:
Can be applied in controlled air release or pressure balancing systems where reliable one-way airflow is needed.
Food & Beverage Dispensing:
Suitable for certain food-grade dispensing applications requiring hygienic silicone material and stable sealing performance.
Yes. Hopewell has a professional engineering team and specializes in custom silicone non-return valves, including duckbill valves, umbrella valves, slit valves, and other precision elastomer valve solutions.
The valve is designed for one-way liquid dispensing and air venting, helping prevent backflow, leakage, and contamination in dispensing systems.
Silicone rubber offers excellent elasticity, temperature resistance, aging resistance, and long-term sealing stability, making it ideal for dispensing valve applications.
Yes. The valve features an integrated undercut structure that allows direct snap-fit installation without additional fixing components.
Yes. Hopewell can customize the valve color according to Pantone color numbers and customer packaging requirements.
Yes. Hopewell can provide free samples for testing, while shipping costs are typically covered by the customer.
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