Valve bags commonly known as pasted bag, Target material are filled into the bag from its filling spout on the upper or lower bottom. Valve bag requires specialized equipment. Package would form itself into a rectangle during the filling process. Valve bag is very efficient for filling and make it neat and tidy to palletizing.Stable stacking on the pallets makes it safer for transportation.Vavle bag is widely applied to food grade powder ,chemical powder ,fertilizer ,medicine or mineral powder or kernels etc.Also there is large sized valve bag which is widely appied to fumed silica and fine Nami Grade Powder.
Key features of valve bags include:
- Valve Mechanism: The distinguishing feature of valve bags is the presence of a one-way valve or spout typically located on the top or side of the bag. This valve allows for controlled filling of the bag with the bulk material while preventing the escape of dust or fine particles during the filling process.
- Self-Sealing Design: After filling, the valve on the bag automatically closes, sealing the contents inside and preventing leakage or spillage. This self-sealing feature eliminates the need for additional sealing mechanisms such as sewing or heat sealing, streamlining the packaging process.
- Efficient Filling: Valve bags enable fast and efficient filling of bulk materials through the valve opening. The valve allows for high-speed filling operations using pneumatic or mechanical filling equipment, reducing labor costs and increasing productivity.
- Improved Product Protection: Valve bags provide excellent protection for bulk materials during storage and transportation. The self-sealing valve helps maintain the integrity of the contents by preventing moisture ingress, contamination, and exposure to air, ensuring product freshness and quality.
- Dust-Free Handling: The one-way valve mechanism minimizes dust emissions during filling and handling, creating a cleaner and safer working environment for operators. This dust-free handling is particularly beneficial for handling fine powders and dusty materials.
- Versatile Applications: Valve bags are suitable for a wide range of dry bulk materials, including grains, seeds, fertilizers, cement, chemicals, pet food, and more. They are available in various sizes, materials, and configurations to meet the specific packaging requirements of different industries and applications.
Overall, valve bags offer efficient, dust-free, and reliable packaging solutions for storing and transporting dry bulk materials. Their innovative design and versatile applications make them a popular choice across various industries worldwide.