Case studies by application
This Tri-Flow unit uses PTFE filter cartridges, which provide collection efficiencies of 99.999% and higher at 0.5 micron.
Other media options are detailed here: Tri-Flow Filter Elements
Tri-Flow is ideally suited to the efficient collection of submicron particulate (also fumes) from precision machining operations, and delivers performance virtually identical to a HEPA filter. It has proven to be a superior alternative to conventional cartridge, bag, and pocket filters for industrial dust collection.
Tri-Flow systems are custom-configured for this OEM, with a shorter height, noise abatement and other features, typically with a capacity of 1800 to 6000 cfm. (Larger Tri-Flow units are manufactured for other applications, upwards of 100,000 cfm.)
Tri-Flow filters have an exceptionally large filter surface area that makes it ideal for abrasive blasting. They are self-supporting, and use one of 7 proprietary filter media, each tailored to the end user. Filters are MERV 15 or MERV 16; particulate collected is primarily one micron and larger, and is collected consistently at 99.999% or higher efficiency. Filter service life has proved to be substantially longer than standard cartridges or bag filters of equivalent capacity.
The equipment is powder coated for long-term durability.
Tri-Flow units are mounted on semi-trailers and taken to sites where bridge repair and other infrastructure programs are underway.
The three 4000 cfm Tri-Flow units each use Tri-Max PTFE filter cartridges, which have proved ideal for the collection of lead-based paint. Other media options are detailed here.
Tri-Flow is ideally suited to the efficient collection of particulate from sandblasting operations, particularly those where it is necessary to contain lead waste and comply with environmental regulations. It delivers performance virtually identical to a HEPA filter, and has proven to be a superior alternative to conventional cartridge, bag, and pocket filters.
The six PTFE filters in the system are MERV 15 rated, and collect all particulate, including submicron particulate, at 99.999% efficiency or better.
Filter elements have a life 3-5X that of conventional bag or cartridge filters. Aerodynamic gasketing optimizes the efficiency of the system’s pulse-jet cleaning system; media is pleated and continuously bonded for maximum dimensional stability and filter integrity.
For companies who fabricate with steel and other metals, the Tri-flow dust collection system is an economical and effective alternative.
Tri-Flow filtration is also available in an environmental enclosure that’s ideal for manufacturing environments.
The Tri-Flow units are each 3600 cfm, and, because powders are volatile, are provided with explosion venting and other custom features.
The 4000 cfm Tri-Flow units each use MERV 15 Tri-Plus filter cartridges that provide 99.99%+ dust control for particles .5 microns and larger. A complete list of media options is described here.
Tri-Flow is ideally suited to the efficient collection of particulate from food processing environments, including spice and vitamin manufacturing. Systems deliver performance virtually identical to a HEPA filter, and have proven to be a superior alternative to conventional cartridge, bag, and pocket filters. Tri-Flow filter elements have a multi-year service life, and are easy to maintain using an integral pulse-jet cleaning system.
The systems all use Tri-Mer’s PTFE membrane, a HEPA Level, MERV 16 media, which has a very high dust loading capacity. Filters provide collection efficiencies of 99.999% on 0.5 micron and larger particles by weight, and cost-effective compliance with stack emissions standards.
Tri-Flow filters are self-supporting, pleated and continuously bonded for maximum dimensional stability. Robust and cleanable daily with an integral pulse-jet system, these filters have proven to have a service life substantially longer than any cartridge or bag used previously by any of the 3 companies.
Tri-Mer is the dust collector manufacturer preferred by manufacturers of spices and freeze dried fruit products, as well.
The Tri-Flow units range in capacity from 2000 to 20,000 cfm; all use Tri-Plus MERV 15 filters, an alternative proven superior to bags and cartridges, which are typically MERV 10-13.
Filter change-out is simple and “tool-free,” and is accomplished from the clean air plenum side, from outside the collector. No entering of the dirty air plenum is required for servicing.
Tri-Flow filter elements have a multi-year service life, and are easy to maintain using an integral pulse-jet cleaning system.
For companies who mine and process gold, platinum and copper, Tri-Flow dust control systems have provided an economical alternative, with HEPA level performance and a service life 3-5 times that of conventional bag or cartridge-type filters.
A manufacturer of floor coverings used vent filters on raw material silos. One, fitted to a silo that was filled and emptied constantly, was subject to vibration and fluctuations in pressure and dust loading. It had to be lifted to ground level every three months so bags could be changed and cages repaired.
The company upgraded to the Tri-Flow dust collector design with needle-felt media, completing the installation in less than a day. Twelve weeks later, the filters were inspected. Thanks to the system’s self-cleaning feature. They were clean, and unaffected by the rigorous operating conditions.
Six months later, a second system was converted to the Tri-Flow dust collector design; two others followed. The first filter has now been in service for more than eight years, without maintenance or operational issues. Premature bag failure is no longer a concern, maintenance is simpler, and the company has recovered many times the cost of the conversion.
A vegetable oil producer collected dusts from the processing of soya beans. The dust-laden air is often humid, increasing the tendency of the dust to become sticky. Filter bags were changed often due to blinding or abrasion between the fabric and support cage.
Tri-Flow filters are made from anti-static polyester needlefelt with a microporous coating were installed. Filter life is now 24 months, an eightfold increase in service life. A second filter was subsequently converted with 24 Tri-Flow cartridge filters.
A manufacturer of specialty chemicals uses an attritor dryer to produce graded materials. Product was collected in a sleeve filter, which never delivered above 80% of the dryer design capacity.
The sleeves were replaced by 36 Tri-Flow filters, manufactured from microporous needlefelt media, increasing filter area 80%. The filters provide easy dust release and minimize cross-contamination during product change-over.
Following conversion, the dryer achieved its rated capacity, boosting hourly production by 20%. Previous stoppages for filter cleaning were eliminated, allowing operation to increase from 16 hours to 24 hours.