Shanghai Metal Corporation is a professional manufacturer and supplier of Bag On Valve with high quality and reasonable price.

The Bag-On-Valve (B.O.V.) is a barrier packaging technology for liquid or viscous products. The product is completely separated from the eco-friendly air or nitrogen propellant. This separation keeps the product pure. B.O.V. packaging is 100% recyclable and offers both convenience and reliability. Typically B.O.V.’s are used in aluminum cans with a one inch opening for crimping the valve which is welded to a foil based packaging bag with multi-layer film laminate. Once the valve has been crimped compressed air or nitrogen is filled into the area between the bag and can. This process is called under the cup gassing and keeps the product and propellant separate at all times. Most fluids and viscous products can be filled in a B.O.V. system as long as the product’s viscosity is low enough to allow passage through the valve stem.

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