Standard Filter Bags

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High-capacity filter bags (sock filter) with ratings to 1 micron, are available in a wide range of sizes and materials for general use. Special-purpose filter bags for high-temperature service and oil removal are also available.

Standard Filter Bag Types (filter bags are also referred to as sock filters)

  • Molded top bags are stocked with polypropylene tops in sizes 1, 2, 3, 4, 8 & 9.
  • Ring top bags are stocked in sizes 1, 2, 3, 4, 8, 9 & 12 with galvanized steel, rings.
  • Handles are standard on all bags.
  • Standard stock bags have sewn construction.

Standard Filter Bag Finish

  • Felt filter bags are supplied with a glazed finish to reduce fiber migration. 
  • Mesh filter bags are supplied with a plain finish as woven.
  • Microfiber filter bags have spun bonded covers to prevent fiber migration.

Construction of the Standard Filter Bag

  • Standard filter bags are typically manufactured with a metal ring, either galvanized carbon steel or stainless steel, sewn in the top of the filter bag. Woven fabric handles are also sewn.
  • Another design incorporates a molded plastic top. These tops typically are polypropylene or polyester with molded lifting handles. Various types of tops are available to fit specific manufacturers' housings. Rosedale's RP series top flange provides the best bag-to-housing seal in today's marketplace. During operation, as the filter bag gets dirty causing differential pressure to increase, our flared RP