Donaldson Torit

Ultra-Web SB Filter Cartridges
An extension of this manufacturer’s nanofiber media technology, Ultra-Web SB is a new, tougher filter media for dust collection in chemical, pharmaceutical, cosmetic, textile and other manufacturing processes that face challenges from agglomerative dust. The filter media combines the excellent surface-loading and dust release capabilities of Ultra-Web nanofibers with a strong spunbond polyester substrate, to create filter cartridges with durability, moisture and chemical tolerance, long life, high efficiency, and significantly lower pressure drop for energy-efficient operation when compared to spunbond or meltblown media. Ultra-Web SB cartridges also feature wide pleat spacing, which allows thorough pulse cleaning of fine and fibrous particulate. The spunbond substrate is made without resins; consequently, Ultra-Web SB cartridges can potentially be used where challenging conditions (e.g., higher temperature, chemicals and moisture) could weaken or destroy the resin system within standard substrate media. Ultra-Web SB is currently offered in four cartridge sizes for the manufacturer’s self-cleaning cartridge-style dust collectors — Downflo, Downflo II, Downflo Oval, and large TD-style collector

Triple-Sealed Bag-In/Bag-Out (BIBO) system
The Triple-Sealed Bag-In/Bag-Out (BIBO) system ensures dust containment during filter replacement operations in chemical and pharmaceutical applications. The containment bags are made of a rugged, proprietary material, Armorflex, which is designed to withstand tough handling operations. To avoid cuts, tears or holes in the bags, the system’s design does not expose the bags to the inside of the dirty air plenum, where abrasion is likely. Instead, the system is mounted on the outside of the manufacturer’s Downflo dust collector; the clean-change bags are stored on the clean air side, away from the dirty air plenum, which minimizes worker exposure to potentially hazardous compounds. The bag-changing procedure cycles only one filter at a time and can be executed efficiently by one person.