Bag on Valve
Advanced aerosol packaging solutions for industry and contract manufacturing
What Bag-on-Valve is and why it is strategic for industry
Bag-on-valve (BOV) technology is now one of the most advanced aerosol packaging solutions for cosmetic, pharmaceutical, food and technical applications.
Unlike conventional aerosol systems, BOV completely separates the product from the propellant by means of a multi-layer bag, thermally sealed and integrated into the valve. This enables:
- preservation of formulation integrity
- high safety standards
- improved packaging sustainability
For structured companies and international brands, BOV is not merely a technical option, but a strategic lever in terms of compliance, performance and product positioning.
How the Bag-on-Valve system works
The system is based on a physical separation between the product and the gas:
- the product is filled into a multi-layer bag
- the bag is connected to the aerosol valve
- the space between the bag and the container is pressurised with compressed air or nitrogen
- the external pressure compresses the bag, enabling product dispensing
This architecture completely eliminates contact between the contents and the propellant, making the system suitable even for sensitive or sterile formulations.
When to choose Bag on Valve
BOV technology is particularly suitable when the project requires:
- high protection of the contents
- no contamination between product and gas
- sterile or sensitive formulations
- high-viscosity products
- premium or medical positioning
Competitive advantages for Companies and Brands
- Formulation integrity and stability
Separation from the propellant enables the use of complex formulations that are sensitive to oxidation. - Safety and regulatory compliance
The use of air or nitrogen reduces risks associated with flammable gases and facilitates compliance with international environmental regulations (cosmetics, pharma, food). - Dispensing performance
– continuous and consistent dispensing
– 360° operation
– complete evacuation of the container - Sustainability and ESG positioning
BOV contributes to:
– reduced environmental impact
– elimination of traditional propellants
– improved “green” product perception
Industrial applications
Cosmetic products
Medical devices
Household products
Technical products
The value of a third-party partner in Bag-on-Valve
For medium and large companies, adopting BOV requires expertise that goes beyond simple filling.
A specialized partner makes it possible to manage:
- product industrialization.
- compatibility between the formulation and the BOV system.
- selection of materials (bag, valve, container).
- validation and stability testing.
- supply chain management
From development to production
Adopting BOV enables brands to:
differentiate themselves in the market with premium solutions.
improve safety and compliance.
enhance perceived quality.
meet sustainability requirements.
For this reason, the technology is increasingly used by leading companies across their sectors.
An engineering approach to Bag on Valve
Implementing Bag-on-Valve technology requires expertise that goes beyond aerosol filling. Everton supports companies and international brands in the design and industrialization of BOV solutions, integrating:
- compatibility analysis between the formulation and the system.
- technical selection of components (bag, valve, actuator).
- stability and performance testing.
- validation of manufacturing processes.
The goal is to ensure industrial reliability, regulatory compliance, and consistent performance at scale.
Contract manufacturing for complex projects
Everton works as a partner for companies developing:
- highly specialized products.
- sensitive or innovative formulations.
- product lines with high quality and regulatory requirements.
In this context, Bag-on-Valve is a strategic solution to combine:
- content protection
- user safety
- premium positioning
From development to production
Support covers the entire cycle:
- technical project assessment.
- prototyping and testing.
- industrialization.
- contract manufacturing.
- quality control.
This helps reduce development time, complexity, and risk.
FAQ
- Is Bag-on-Valve suitable for any formulation?
No. Suitability depends on variables such as viscosity, oxygen sensitivity, and compatibility with bag materials.
A testing phase is always required to validate the solution under real conditions. When does it make sense to move from traditional aerosol to BOV?
The switch is recommended when there is a need for:
– greater formulation protection.
– no propellants in contact with the product.
– improved safety or sustainability performance.
It is especially relevant for high-value or regulated products.What are the main challenges in developing a BOV product?
The main challenges are:
– compatibility between the formulation and the materials.
– long-term stability.
– dispensing performance.
– industrial scalability.
For this reason, an engineering-based and tested approach is essential.- Is Bag-on-Valve compatible with large-scale production?Yes, but it requires dedicated production lines and optimized processes. The industrialization phase is crucial to ensure consistent quality and performance.
- What is the role of a third-party partner in a BOV project?
A specialized partner supports:
– system development and optimization
– testing and validation
– industrialization.production
This helps reduce development time and technical risk. - Can BOV help reduce the use of preservatives?
In many cases, yes, thanks to the separation of the product from external air.
However, this depends on the specific formulation and must be verified through dedicated testing.
Contact us
We respond quickly to all enquiries.
Tell us about your project: together we will find the solution that best suits your production needs.
Via Azzano 11, 37064 Povegliano V.se (VR) – Italia
Tel: +39 045 6350595
Email: info@everton.it