18 mm bung (flow reducer)

Precise dosage control and efficient sealing for small-volume bottles

 Ideal solution for controlled dosing

18 mm bung is an essential component for locking systems that require output control, flow reduction and better product utilization.

Developed for use in conjunction with standard 18 mm (18-415) screw caps, it acts as a internal gearbox, allowing the content to be released in a controlled and secure manner.

It is widely used in applications that require precise dosing and product protection, especially in low-viscosity liquids.

18 mm bung (flow reducer)

Category
Full description

Precise dosage control and efficient sealing for small-volume bottles

 Ideal solution for controlled dosing

18 mm bung is an essential component for locking systems that require output control, flow reduction and better product utilization.

Developed for use in conjunction with standard 18 mm (18-415) screw caps, it acts as a internal gearbox, allowing the content to be released in a controlled and secure manner.

It is widely used in applications that require precise dosing and product protection, especially in low-viscosity liquids.

 Main benefits

 Precise control of product output Reduced waste Better user experience Efficient sealing in conjunction with the lid Protection against leaks Ideal for liquid and sensitive products Easy application and assembly Compatible with different types of bottles

 Function of the bung

18 mm bung acts as an internal flow reducer, allowing:

  • Controlled liquid release - More precise application - Better product dosage - Reduction of excessive contact with air - Safer transportation

 Most used applications

18 mm bung is suitable for products that require application control:

Cosmetics & Skincare

  • Serums - Facial oils - Concentrated products

Pharmaceutical & Therapeutic

  • Topical solutions - Manipulated products - Extracts and essences

Food

  • Liquid sweeteners - Essences

Technical Use

  • Low viscosity liquid products

 Compatibility

Compatible with:

  • Caps 18 mm (18-415) - Glass, PET, PE and PP bottles

 Cap and formulation compatibility tests are recommended.

 Variations available

18 mm bung can be supplied in different configurations:

  • Different hole diameters - Flow control as required - Options for different types of liquids

 Consult our team to define the best configuration.

 Technical Specifications

Product: 18 mm bung Role: Flow reducer Application: Internal (attached to the bottle) Material: Polyethylene (PE) Compatibility: 18 mm caps

 Request your quote

Do you need dosage control or technical development?

 Talk to our team and find the best solution for your application

 Specialized technical support Custom development Delivery throughout Brazil and export

Cosmetics & Toiletries

  • Shampoos and conditioners
  • Liquid soaps and shower gels
  • Body moisturizers and lotions
  • Body and hair oils
  • Children's line / baby care

Pharmaceutical & Dermatological

  • Lotions and topical solutions
  • Antiseptic liquid soaps , Skin care
  • Dermatological solutions (e.g. acne, specific hygiene)

Food

  • Liquid sauces (e.g. oils, seasonings, syrups, colorings)
  • Syrups and toppings
  • Condiments in small packages

Veterinarian

  • Liquid shampoos and soaps for pets
  • Veterinary topical lotions and solutions

Hygiene & Cleaning

  • Liquid hand soap
  • Mild detergents
  • Multipurpose products in smaller packages

Hotel Miniatures & Amenities

  • Amenity kits (shampoo, conditioner, liquid soap, moisturizer)
  • Complimentary bottles for hotels, hostels and Airbnb
  • Corporate hygiene and wellness gifts

More than 60 standard color options available

  • Closed tones
  • Translucent tones
  • Pearly tones

Special colors under development

  • Production in custom colors (pantone or customer reference), subject to minimum quantity.
  • Possibility of alignment with the brand's visual identity (e.g. line colors, institutional colors, special collections).
  • We work with flexible quantities. Talk to our team to find out the best option for you.
  • Flexible lots: possibility to split by color and model according to negotiation
  • Special conditions for large volumes, continuous contracts or recurring supplies
  • Progressive discounts according to quantity range

Shipping in Brazil

  • Deliveries to all Brazilian states, via partner carriers and customer redispatch. .
  • Delivery time varies according to region and order volume

Shipping abroad

  • We serve international clients, with options for:
    • Boarding by sea, air or land
    • Preparation of export documentation - EX WORKS

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