​When business increased and this foundry needed to add another shift, the plant manager wondered if the existing Donaldson® Torit® HPT dust collector could handle the increased dust load. 

They were using conventional 16-oz polyester needled felt bags and they changed them out at 6” ∆P. The problem was that the ∆Poften reached 5” after only a few months of use and typically reached 8” by 6 months. Do the math—if they doubled dust collector usage from 40 hour per week to 80 hours per week, they figured they’d be changing out filter bags every 3 months.

Dura-Life to the rescue! Now, using this unique hydro-entangled filter media from Donaldson Torit, the foundry has seen significantly longer life from their bags. After 15 months of operation, the ∆P on the Dura-Life bags is only 4.5”. It looks like they expect to get fully 5 times (or more) the filter life compared to their old polyester bags!

The plant manager said that they have been doing regular patch testing and visible stack emissions testing since the Dura-Life bags were installed. Both tests showed Dura-Life bags continue to perform extremely well.

Any way you measure it, Dura-Life gives 5X the life!