Filter Bags

Where are the HEPA filters in your Baghouse Industrial Ventilation system located? Before or after the fan? IAC Process Engineer Luis Castano explains how, as filtered air leaves the baghouse, proper HEPA filter placement is critical to optimal performance of downstream processing systems and prevention of possible contaminated air leaks.

Just like baghouse dust collectors, the ventilation system differential pressure on HEPA filters for toxic dust must be monitored. However, if your baghouse has a leak, by the time the HEPA filter monitor indicates a high differential pressure, the HEPA filter’s performance has already been compromised, potentially causing a very expensive problem. IAC Process Engineer Luis Castano explains how to detect a leak and prevent this problem.

In our October edition of the IAC Tip of the Month, Applications Engineering Manager, Luis Castano, provides tips on how to keep long filter bags from clumping together after a bag change out.

In this month's Tip of the Month Video, Luis talks to us about utilizing the bag pinch technique for baghouse filter bags.

IAC's Eric Huggins joins us for this month's tip of the month where he addresses baghouse filter bag life. Short Filter Bag Life is often a complicated problem to diagnose. The following may be helpful in performing some preliminary checks.

First verify that the operating temperature is not above the recommended limit for the filter bag media. Each media type has a specific upper temperature limit in which it can operate safely.

Next check for signs of chemical attack. Bag materials can degrade due to certain chemicals present in the dust stream. A few to watch out for are: Oxygen levels above 15%, Alkaline, and Mineral Acids. High Moisture content along with relatively high temperate can also cause some medias to degrade quickly.

Next you will want to inspect the filter to see if there are any signs of localized abrasion. Abrasion of the filters at the top cuff could be due to incorrect installation or miss-aligned blowpipes. Abrasion of the filter bags at the dusty air inlet may require an inlet baffle modification. Corroded, rusted, bent, or broken support cages can also cause excessive bag wear. Available Stainless steel or coated cages can help to reduce cage related problems.

To insure your baghouse is always operating at peak efficiency, call our IAC Field Services team, The Blue Crew, and set up a routine maintenance program or inspection today.

You may be thinking to yourself that installing a snap band filter bag in your baghouse is easy; just bend the top of the bag, run the bag through the tube sheet and snap into place. If this sounds like you, then you’re going to want to keep reading!

There are some small but important details that go into snap band installation that often get overlooked and can lead to a damaged bag and poor dust collection performance.

IAC's Luis Castano joins us for another Tip of the Month where he shows how to properly install a snap band filter bag.

IAC's Eric Huggins provides information on properly installing filter bags in a baghouse dust collector.

Pleated baghouse filters have been around for decades and can offer advantages in certain applications — but they aren’t a one-size-fits-all solution. In this Tip of the Month video, IAC Applications Engineering Manager Luis Castano breaks down when pleated filters make sense, where their limitations come into play, and what operating conditions can lead to performance issues over time.