Flip Top Cap

28mm Flip Top Cap


Bi-color, liner-less and pilfer-proof design

28-400 tamper proof cap with silicone valve 

Free Samples can be provided or testing quality

One squeeze, one dispensing, no leakage

Factory price, fast delivery, low MOQ

Red, yellow, blue, white colors in stock



Specification of 28mm Flip Top Cap With Silicone Valve

Product Name

Factory Hot Sale Food Grade Bi-color PCO1810 28mm Flip Top Cap With Silicone Valve

Model Number



Passing EU Food Contact Material certificate PP material, with LFGB and FDA certifications


Red, White, Black, Blue, Yellow Colors in Stock, Can Also Customize Other Colors



Surface Finish


Neck Finish Size


Outer Diameter


Neck Thred






Induction Liner


Whether With Silicone Insert


Insert Silicone Valve Size

13mm Silicone Valve With 14.6mm Plastic PP Ring, 5.5*5.5mm Cross Slit Cut

Sealing Type

Silicone Valve

Dispensing Type

Silicone Valve

Manufacturing Technology

Plastic Injection Molding+LSR Injection Molding


Tool Design-Tool Manufacturing-Mix Material-Injection Molding-Further Processing-Inspection-Add Silicone Valve And Plastic Valve seat-Inspection-Function Test-Dust Free Packing-Shipping


Public Mold

Daily Capacity

200,000pcs/ line


50,000 pcs/color


EU Food Contact Material Certificated, FDA Certificated, LFGB Certificated, ISO 9001 and ISO 14001 Certificated


Suitable for Squeeze Bottles, Such As: Soy Sauce Bottle, Vinegar Bottle, Juice Bottle, Sports Water Bottle, Concentrates Bottle, Beverage Bottle, Soda Bottles Etc.


  • water bottle sport cap

    water bottle sport cap

  • Sports Bottle Cap

    Sports Bottle Cap

  • bottle sport lid

    bottle sport lid

Product Information

What Is 28mm Flip Top Cap?

These portion control 28mm flip top caps, also known as sport water bottle caps, feature a silicone valve inside. They have a 28-400 neck finish size, a 32mm outer diameter, and a PCO1810 thread. These 28mm flip top caps are designed to control the flow of liquids, ensuring that the dispensing speed is regulated. Additionally, they are intended to provide customers with the ability to determine whether the drinks have been opened, ultimately offering consumers a safe drinking experience.

PCO1810 28mm Flip Top Cap

Opening Angle of 28mm Flip Top Cap 

The 180° opening angle of 28mm Flip Top Cap will give you a comfortable drinking experience.

Tamper Proof Cap

2D Design of Food-grade 28mm Flip Top Cap

Tamper Proof Cap

Advantages of 28mm Flip Top Cap

1. The Hygienic 28mm flip top cap is designed with an innovative sealing system to provide ultimate product protection for your liquid drink. Its secure closure effectively prevents leaks and contamination, giving consumers peace of mind while enjoying their beverages. 

2. The 28mm flip top cap is a liner-less flip-top sport cap with a silicone valve. It is specifically designed for the hot fill bottling process and can be used in PET or PP plastic squeeze bottles.

3. Passed 7 days* 24 hours leak-proof testing.

4. We have a sufficient stock of white, blue, yellow, and red colors. Additionally, we are open to customizing other colors based on the required PanTone color.

Custom Leak-proof 28mm Flip Top Cap 

Thank you for your interest in our PCO1810 28mm flip top cap. We understand the importance of branding and customization for businesses, and we are pleased to offer custom color options to match your specific requirements. Whether you are looking for bold and vibrant colors or subtle and sophisticated shades, we can accommodate your needs. To explore our custom color options, please provide us with the details of your desired pantone number. We look forward to assisting you with your color customization needs.

PCO1810 28mm Flip Top Cap

About Hopewell

Not only do our 28mm flip top cap provide enhanced security, but they are also incredibly easy to use. They can be easily applied to a wide range of packaging options, providing a versatile solution for various industries. With a simple twist or snap, the cap creates a tight, tamper-proof seal, guaranteeing the freshness, authenticity, and safety of your products.

Our 28mm flip top caps are not only essential for protecting the integrity of your products but also for building trust with your customers. By visibly demonstrating your commitment to quality control and product safety, you can instill confidence in your brand and differentiate yourself from competitors.Whether you're in the pharmaceutical, food and beverage, health, or any other industry that requires tamper-resistant packaging, our tamper-proof caps are the ideal choice. 

Hopewell has over 13 years in producing ISO14001 certified 28mm flip top cap. With rich working experience, we focus on the high quality to meet various demands. If you are interested in no drip 28mm flip top cap, welcome to contact us for more details and free quotation.

Tamper Proof Cap

How to Use

If you're interested in the using method of 28mm flip top cap with silicone valve, please click the following link:

Manufacturing Process

Process Of Tamper Proof Cap

Tool Design - Tool Manufacturing - Mix Material - Injection Molding - Further Processing - Inspection - Add Silicone Valve and Plastic Valve seat - Inspection - Function Test - Dust Free Packing - Shipping

Tamper Proof Cap


For PCO1810 28mm flip top cap, to keep the product clean and not deformed while in transportation and in storage, normally, the packaging as follow: 

                    Item Name


PCS/ Carton

Carton Size



28mm Flip Top Cap With Silicone Valve  






Tamper Proof Cap

Tamper Proof Cap


  • 1

    Are you a manufacturer or a trading company?

    We're a manufacturer of silicone molding products, with about 10,000 square meters production workshops.

  • 2

    Can you provide free samples?

    Free samples can be provided for quality checking, freight cost need be charged.

  • 3

    What is your MOQ?

    Our moq is 50000 pcs each color.

  • 4

    Can i customize other colors?

    We can do any color you want, just tell us PanTong color you want, we we will do for you.

  • 5

    How long is production time?

    We can produce 100,000 pieces a day, production time is about 3-10 days.

  • 6

    How many types of closure are there?

    We have four styles bottle caps: 28-400 dispensing closure with 32 mm outer diameter; 38-400 dispensing closure with 40 mm outer diameter; 38-400 flip top cap with 40 mm outer diameter; 38-400 traditional flip top cap with 53 mm outer diameter.

  • 7

    Can you do flip top cap without silicone valve?

    Yes, we can do flip top cap with silicone valve insert, can also do it without silicone valve.

  • 8

    What is the use of plastic cap?

    Plastic cap can be used for plastic squeeze bottles dispensing, such as: ketchup, mayonnaise, honey, syrup, mustard, sauces, dairy, tomato sauce, soy sauce, vinegar, spreads, juice concentrate, water, sports water, concentrates, beverage, drinks and all liquids dispensing.

  • 9

    What certifications do you have for plastic bottle caps?

    Our plastic bottle caps passed European Food Contact Material Certificae, they can also meet FDA and LFGB certification.

  • 10

    Can i vist your factory?

    Of course, highly welcome.

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