Our multi-wall paper valve bags are a proven packaging solution for manufacturers handling dry flowable products that require clean, efficient, and high-speed filling.
A Pasted Valve Stepped End (PVSE) multi-wall paper bag is one of the most widely used valve sack styles in industrial packaging.
Designed for automated, high-speed filling equipment, product enters the bag through a horizontal filling spout using air, impeller, or auger systems.
Once the bag is released from the filling sprout, internal product pressure causes the valve opening to self-seal—eliminating the need for additional closing steps and improving line efficiency.
This construction creates a clean, squared-up package that:
Valve bags are filled through an opening located in the top corner of the bag. Product is pumped or forced into the bag via air pressure, impeller, or auger. When the bag is expelled from the filling equipment, the internal forces exerted by the contents prompt the opening of the valve bag to self-seal. This self-sealing design enables secure containment and streamlined handling from fill to final delivery.
Bags with valves can be equipped with different valve or “sleeve“ types. Each sleeve type performs the same basic function. However, the proper sleeve type for your product and packing equipment needs to be evaluated when designing a valve bag. Our valve type capabilities include:
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Every filling line and product behaves differently. We offer fully customized valve bag packaging solutions engineered around your material characteristics, filling equipment, and logistics requirements.
Available bag styles include:
Minimum order quantities and artwork charges may apply. Lead times typically range from 4–16 weeks depending on bag construction and printing requirements.
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