38-400 Inverted Flip Top Cap for Sauce Dispensing Bottles

The 38 400 flip top cap is a high-performance dispensing closure specially designed for squeeze bottles used in food and condiment packaging. With a standard 38-400 neck finish and integrated silicone valve technology, it provides excellent sealing, smooth dispensing, and convenient user operation. The double wall flip top cap structure improves sealing performance and provides additional protection during storage and transportation, making it an ideal choice for ketchup, sauces, and other viscous liquid packaging.

Designed for inverted bottle applications, this silicone valve flip cap allows products to be dispensed directly without removing the cap. The valve opens when pressure is applied and automatically closes after dispensing, preventing leakage and maintaining a clean bottle opening.

Application of the 38 400 Inverted Flip Top Cap with Silicone Valve

The 38-400 flip top cap is widely used for:

Tomato ketchup bottles

Sauce squeeze bottles

Mayonnaise packaging

Honey containers

Salad dressing bottles

Syrup packaging

Mustard bottles

BBQ sauce bottles

Condiment packaging

Food service squeeze bottles

It is compatible with common PP, PET, and HDPE squeeze bottle packaging systems.

What Is a 38 400 Flip Top Cap?

A 38 400 flip top cap is a dispensing bottle closure designed according to the 38-400 neck finish standard. The number "38" represents the approximate neck diameter in millimeters, while "400" refers to the thread specification commonly used in the packaging industry. This closure combines a flip opening mechanism with a silicone dispensing valve, providing a practical packaging solution for products requiring controlled dispensing.

The structure includes:

• Food-grade PP cap body

• Silicone valve insert

• Matched Plastic Ring

• Flip opening cover

• Double-wall sealing structure

Features of Silicone Valve Flip Cap

1. Excellent Leak Proof Performance

The integrated silicone valve creates a reliable sealing system that prevents unwanted leakage when the bottle is stored upside down.

The valve design helps achieve:

No dripping

No product leakage

Clean bottle opening

Reduced product waste

2. Double Wall Flip Top Cap Structure

The double-layer structure enhances the overall sealing capability of the closure.

Advantages include:

Better protection against leakage

Improved product appearance

Stronger closure reliability

Suitable for inverted storage

3. Smooth and Controlled Dispensing

The silicone valve controls the liquid flow during squeezing.

Users can easily:

Control dispensing quantity

Avoid over-dispensing

Use the product with one hand

Extract almost every drop from the bottle

4. Convenient Flip Opening Design

The flip top design allows quick opening and closing, providing better consumer convenience compared with traditional screw caps.

5. Custom Packaging Solutions

Hopewell provides customized solutions including:

Custom colors

Customized valve opening

Bottle neck matching

OEM production

Instruction of 38 400 Flip Top Cap

The usage method of the 38-400 flip top cap is simple:

• 1. Open the flip cover.

• 2. Apply gentle pressure to the bottle.

• 3. The silicone valve opens and releases the product.

• 4. Stop squeezing after dispensing.

• 5. The valve automatically seals to prevent leakage.

The design allows consumers to dispense sauces cleanly without removing the entire cap.

Production Process of 38-400 Flip Top Caps

Hopewell controls the complete production process from plastic molding to final inspection.

Plastic Injection Molding - Further Processing - Inspection - Silicone Valve Assembly- Inspection - Function Test - Dust Free Packing - Shipping

Professional 38-400 Flip Top Cap Manufacturer

Hopewell specializes in manufacturing silicone valve closures and plastic dispensing caps for food, beverage, and consumer packaging industries.

Our advantages include:

1. Precision Mold Manufacturing

Our professional mold development team provides:

High-precision injection molds

Stable mass production

Consistent product quality

Customized mold solutions

2. Automated Silicone Valve Assembly

The silicone valve is a critical component of the dispensing closure.

Hopewell uses automated assembly systems to ensure:

No missing valve

No incorrect assembly

Consistent valve position

Stable dispensing performance

3. Full Automatic Quality Inspection

Each batch goes through multiple inspection processes:

Incoming material inspection

Injection molding inspection

Silicone valve inspection

Assembly inspection

CCD visual inspection

Functional testing

The CCD system checks:

Product appearance

Product dimensions

Assembly accuracy

Functional quality

4. Food Grade Production Environment

Hopewell manufactures food dispensing closures under strict quality control systems.

Certifications include:

ISO9001 Quality Management System

ISO22000 Food Safety Management System

Food contact material compliance

Our clean production environment ensures safe packaging solutions for global food brands.

5. Experienced OEM Supplier

With years of experience producing 38-400 dispensing closures, Hopewell provides:

Factory direct pricing

Stable production capacity

Custom solutions

Technical support

Free samples for testing

For leak-proof 38 400 flip top cap, to keep the product clean and not deformed while in transportation and in storage, normally, the packaging as follow: