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18mm Silicone Sealing Valve

  • Model No.: HWSV08

  • Outer Diameter: 18mm

  • Cross Slit Size: 7.5*7.5mm

  • Application: Mayonnaise

  • MOQ: 50,000pcs/ lot

  • Samples: Free Samples, Freight Collect

Features of 18mm Silicone Sealing Valve

  • The 18mm Silicone Sealing Valve is specially engineered for controlled dispensing of mayonnaise, ketchup, cheese sauce, salad dressing, honey, syrup, and other high-viscosity food products. Designed for squeeze bottle closures and dispensing caps, the valve delivers smooth product flow while maintaining reliable sealing performance during transportation and daily use.

  • Unlike standard flat-top silicone slit valves, this model features a unique dome-shaped structure with circular raised dots around the top surface. This optimized design improves elastic recovery after squeezing, enhances sealing efficiency, and helps reduce unwanted dripping or residue buildup after dispensing.

  • The valve is manufactured from premium food-grade liquid silicone rubber (LSR), ensuring excellent safety and durability for direct food contact applications. The silicone material is odorless, non-toxic, flexible, and resistant to deformation, making it suitable for repeated squeezing and long-term use in food packaging systems.

  • Equipped with a large 7.5 × 7.5 mm cross slit opening, the valve provides a significantly higher flow rate compared with conventional dispensing valves. This larger slit structure allows thick sauces and condiments to be dispensed more smoothly and effortlessly, improving user experience and dispensing efficiency.

Features of 18mm Silicone Sealing Valve
Food-Grade Silicone Material
Features of 18mm Silicone Sealing Valve
Designed for Thick Sauce Dispensing
Features of 18mm Silicone Sealing Valve
Unique Dome Dot Structure for Better Sealing
Features of 18mm Silicone Sealing Valve
Leak-Proof and No-Drip Performance
Features of 18mm Silicone Sealing Valve
Precision Liquid Injection Molding
Suitable for High Flow Rate Applications
Suitable for High Flow Rate Applications
  • To ensure stable quality and precise performance, the valve is produced using high-precision Liquid Injection Molding (LIM) technology combined with semi-automatic slit punching processes. This manufacturing method helps maintain accurate slit consistency, reliable dimensions, and dependable sealing performance throughout mass production.

  • The self-sealing cross slit structure automatically closes once squeezing pressure is released. This helps prevent leakage, dripping, backflow, and external contamination, making the valve ideal for food dispensing closures that require clean and hygienic operation.

  • In addition to condiment packaging, the 18mm silicone sealing valve can also be customized for various dispensing applications requiring high liquid output, leak-proof sealing, and controlled flow performance. Its durable structure and efficient dispensing characteristics make it suitable for a wide range of food, beverage, and industrial packaging solutions.

Specification of 18mm Silicone Sealing Valve


Item Name

18mm Silicone Sealing Valve

Material

FDA& LFGB Food Grade Liquid Silicone

Process

Liquid Injection Molding

Color

Clear

Hardness

30 Shore A

Outer Diameter

18mm

Cross Slit Size

7.5*7.5mm

Application

Mayonnaise Dispensing


18mm Silicone Sealing Valve Schematic

18mm Silicone Sealing Valve Schematic

Product Application

  • The 18mm Silicone Sealing Valve is mainly used in dispensing closures and squeeze packaging systems for food and industrial liquid products.

  • Typical applications include:

1. Mayonnaise squeeze bottles

2. Salad dressing packaging

3. Cheese sauce dispensing caps

4. Honey and syrup bottles

5. Thick condiment packaging

6. Food service dispensing containers

7. High-flow liquid squeeze bottles

8. Custom dispensing closures for viscous liquids

  • Its excellent sealing capability and smooth dispensing performance make it suitable for both consumer packaging and commercial food dispensing systems.


Product Application
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FAQ

Q What products is the 18mm silicone sealing valve suitable for?
A

This valve is mainly designed for mayonnaise, ketchup, cheese sauce, salad dressing, honey, and other thick or viscous liquids requiring controlled dispensing and leak-proof sealing.


Q What makes this valve different from standard cross slit valves?
A

The valve features a unique dome design with circular dots around the top area, which helps improve sealing performance, elastic recovery, and dispensing consistency compared with conventional flat silicone valves.


Q Is the silicone material food safe?
A

Yes. The valve is manufactured from food-grade liquid silicone rubber and can comply with FDA or LFGB food-contact requirements based on customer needs.


Q Will the valve leak after repeated squeezing?
A

The self-sealing cross slit structure is designed to automatically close after dispensing, helping maintain excellent leak-proof and no-drip performance even after repeated use.


Q What types of closures can this valve fit into?
A

The valve is commonly assembled into squeeze bottle caps, flip-top closures, dispensing lids, and custom food packaging systems.


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No. 13, Dongcheng Section, Dongguan Avenue, Dongcheng Street, Dongguan City, Guangdong Province, China
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