Welded Filter Bag

Welded Construction Filter Bags

SENTINEL filter bags represent the industry standard in bypass-free filter construction. Available in polyester and polypropylene materials.

• SENTINEL Pressure Actuated Seal Ring
• Silicone Free Needled Felt
• Super Strong Welded Construction
• Non Migrating Media Construction

Proprietary Construction

Proprietary construction processes produce a reliable, durable filter bag. All seams are fully welded, producing strong, reliable joints with no by-pass or loose sewing thread. Seams are both strong and flexible, allowing the filter bag to form to the restrainer basket. The seam edges are heat sealed, eliminating possible loose fibers. This results in a filter bag with durable performance for the most demanding applications.

SENTINEL Seal Ring

All SENTINEL filter bags utilize the SENTINEL seal. Its all-plastic construction provides a flexible, chemically resistant seal which adapts to any filter housing. This unique design employs a pressure activated sealing lip which responds to increases in differential pressure. As the pressure increases, the seal of the ring improves, insuring by-pass free performance over all ranges of pressure, temperature and micron rating. The elevated bag handles make removal of the bag from the vessel quick and easy.

Now, applications requiring polypropylene or polyester felt filter bags can take advantage of the all-welded construction Filter Bags. These bags, made from silicone-free materials, feature super-strong welded construction rather than sewn seams. This construction ensures that nothing bypasses the process media through holes in sewn fabric