CUSTOMIZABLE

Bag in Bag Filters

Nested bag configuration for retrofit dust collection projects.

Custom Options

Specifications and sizes can be customized on request.

Share dimensions, quantity and operating conditions.

Technical specifications

Parameter	Traditional bag filter example	Bag-in-bag example
Air handling capacity	52,000–84,000 m³/h	52,000–84,000 m³/h
Filter area	1085 m²	1121 m²
Bag dimensions	Ø160 × 6000 mm	Outer Ø160 × 6000 mm; inner Ø150 × 5500 mm
Area per bag assembly	3.0159 m²	Outer 3.0159 + inner 2.5918 = 5.6077 m²
Cage dimensions	Ø160 × 6000 mm	Ø160 × 6000 mm; different structure
Bag cages	360	200
Filter bags / assemblies	360	200
Filtration velocity	0.8–1.3 m/min	0.8–1.3 m/min
Pulse valve specification	2.5-inch angle valve	2.5-inch angle valve
Pulse valve nozzle count	12	10
Pulse valves	30	20
Equipment resistance	≤1500 Pa	≤1500 Pa
Equipment dimensions	7860 × 3570 × 12000 mm	5240 × 3150 × 12000 mm
Equipment weight	34 tonnes	23 tonnes
Dust discharge valves	3 sets	2 sets
Air receivers	3 sets	2 sets
Example savings	—	160 cages; 10 pulse valves; 11.34 m² floor space; approximately 11 tonnes of steel; one discharge valve

Nested inner and outer bags increase filtration area within the existing dust collector
Retrofit approach for insufficient filtration area and excessive filtration velocity, without changing the main collector structure
Designed to reduce equipment footprint, operating and maintenance costs
Illustrated comparison indicates up to 30% material savings and at least 30% lower investment costs; results depend on the project. Higher installation complexity is offset by fewer bags. Existing air ducts and fans can be retained.