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Valve sacks

Valve sacks are perfect for a whole range of products. They are often used for plastic granules, fertilizers, salt and lime. RKW's valve sacks are designed to suit your product, your packing machine and your packing conditions.

You can even choose from several different valve types, materials, models and sizes. Sacks can be made from polyethylene film or fabric and can incorporate a plastic, paper or non-woven type liner.

Special valve sacks:

  • a good integrity (through correct sack construction)
  • controlled air evacuation from the sack (separate inside filter that allows the passage of air but not powder)
  • barrier against moisture and gas (can be achieved by utilizing the specific properties of special raw materials in a co-extruded film)
  • high strength (UN approval)


Valve sacks