Bag on Valves

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For numerous products packed under pressure, the content and the propellant must be kept separate. To meet this requirement, dual compartment packaging was developed.

Coster’s BOV system consists of an aluminum or tinplate can closed by a valve on which a flexible multilayer film bag, containing the product to be dispensed, is a fixed or welded.

The propellant, liquid gas or compressed gas (nitrogen, air), is contained inside the can outside the bag and squeezes the bag to expel the product through the valve.

All Coster BOVs guarantee a high drop resistance even with repeated drops.

Valves are available in many different versions offering varying flow rates suitable for a broad range of applications. A variety of actuators and caps are available for sprays, gels and other products.

All materials, including bag and seal, comply with FDA regulations regarding food contact. Coster maintains a DMF for its BOVs for pharmaceutical applications.

 

| Discover below our Bag On Valves |


BOV 2

  • 1” continuous male press-down Bag On Valve
  • Bag fixed with plug on housing
  • Suitable for use with liquid and medium/high viscous products
  • Can be used with both liquefied propellants and compressed gases outside the bag

 

Applications: Gel/Cream, Post foaming, Nasal Spray/Saline solution and Technical


Male and Female BOV 3

  • 1” continuous male and female press-down Bag On Valve with progressive opening
  • Bag welded on the housing
  • High or medium high delivery rate
  • Can be used only with compressed gases outside the bag (undercup pressurization)
  • Suitable for high values of gamma irradiation (up to 40 KGy).

 

Applications: Gel/Cream, Post foaming, Nasal Spray/Saline solution


20 mm BOV

  • 20mm continuous male press-down Bag On valve
  • Bag fixed with a plug on housing
  • Can be used only with liquefied propellants outside the bag

 

Applications: Cosmetics and Pharmaceuticals


Coster Group