21mm Silicone Cross Slit Valve for Bottle Dispensing| Large Flow Rate Cross Slit Valve for Thick Liquids

21mm Silicone Cross Slit Valve manufactured by YEJIA Silicone is designed for reliable flow control and clean dispensing in liquid packaging applications. Made from high-quality food-grade liquid silicone, this valve opens when pressure is applied and automatically closes when the pressure is released, effectively preventing leakage and contamination.

With its larger valve size and wider slit opening, the 21mm silicone cross slit valve is especially suitable for thicker and more viscous liquids, such as sauces, syrups, gels, and concentrated liquids. The design allows smooth dispensing while maintaining a tight seal when not in use.

Thanks to the excellent flexibility and durability of silicone, the valve can withstand repeated squeezing and maintain consistent performance over time. YEJIA Silicone also offers custom sizes, slit designs, and hardness options to meet different packaging and dispensing requirements.

Product Information

Advantages of 21mm Silicone Cross Slit Valve

Designed for Thick and Particle-Containing Liquids
The 21mm size and larger slit opening make the valve especially suitable for dispensing viscous products or liquids with small particles, ensuring smoother flow without clogging.

Higher Flow Rate
Compared with smaller silicone valves, the larger diameter allows more liquid to pass through, making it ideal for products that require faster or larger volume dispensing.

Excellent Anti-Leak Performance
The cross slit structure remains closed under normal conditions and only opens when pressure is applied, helping prevent leakage during storage, transportation, or daily use.

Reliable Sealing and Backflow Prevention
After dispensing, the silicone material quickly returns to its original shape, providing a tight seal and reducing the risk of air or liquid flowing back into the container.

Flexible and Durable Silicone Material
Made from high-quality silicone, the valve offers good elasticity, long service life, and resistance to repeated opening and closing.

Suitable for Various Packaging Designs
The valve can be integrated into different caps, squeeze bottles, and dispensing systems, making it widely used in food, personal care, household, and industrial packaging.

Applications of 21mm  Silicone Cross Slit Valve

21mm Silicone Cross Slit Valve from YEJIA is suitable for dispensing thick liquids or products containing small particles. Common applications include:

Sauce and condiment bottles (ketchup, chili sauce, jam)

Thick food products such as peanut butter or honey packaging

Personal care packaging (creams, scrubs, gels)

Household product bottles (detergents, cleaning gels)

Industrial or bulk liquid dispensing containers

The larger valve size and wider slit design help ensure smooth flow and reliable anti-leak performance for heavier products.

Why Choose YEJIA as Your 21mm Silicone Cross Slit Valve Manufacturer?

1. Professional Silicone Valve Manufacturer
YEJIA Silicone specializes in manufacturing a wide range of silicone flow control valves, including cross slit valves, duckbill valves, umbrella valves, and custom silicone valves for different industries.

2. High-Quality Food-Grade Liquid Silicone
Our 21mm silicone cross slit valves are made from premium food-grade silicone, ensuring safety, durability, and compliance with food and consumer product standards.

3. Experience in Flow Control Design
With years of experience in silicone valve production, YEJIA understands how to optimize slit structure, thickness, and hardness to achieve stable flow control and reliable sealing performance.

4. Custom Design Capabilities
We support custom sizes, slit designs, and silicone hardness, allowing customers to develop valves that match their specific bottle designs and dispensing requirements.

5. Consistent Quality and Precision Manufacturing
Our advanced molding processes and strict quality control ensure consistent dimensions, stable performance, and long product lifespan for every valve.

6. Clean Production Environment
YEJIA Silicone maintains a clean and well-controlled production environment, helping ensure product cleanliness and stable quality for packaging applications.

7. Reliable Partner for Global Customers
With professional support and responsive communication, YEJIA Silicone works closely with customers worldwide to provide reliable silicone valve solutions for liquid dispensing and packaging systems.

FAQ

1. What is a 21mm silicone cross slit valve?

21mm silicone cross slit valve is a flexible valve with a cross-shaped slit that opens under pressure and closes automatically when pressure is released, helping control liquid flow and prevent leaks.

2. What liquids are suitable for a 21mm cross slit valve?

Due to its larger size and wider slit, the 21mm valve is especially suitable for thicker liquids such as sauces, syrups, gels, and other viscous products.

3. What industries use 21mm silicone cross slit valves?
21mm silicone cross slit valves are mainly used in industries that dispense thick liquids or products with small particles, such as:

Food packaging (sauces, jam, chili sauce)

Personal care products (thick creams, scrubs)

Household and industrial liquids

The larger size and wider slit make them suitable for heavy or particle-containing products while preventing leakage.

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 21mm silicone cross slit 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 21mm silicone cross slit valve?

The 21mm silicone cross slit valve features a larger diameter and wider slit opening, making it ideal for dispensing thicker or more viscous liquids such as sauces, syrups, and gels. The cross slit structure opens under pressure and closes automatically when pressure is released, helping provide stable and controlled liquid dispensing. The valve seals tightly after dispensing, helping prevent dripping, leakage, and product waste.

7. How does YEJIA ensure the quality and consistency of 21mm silicone cross slit 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.