Jet filter QFG-A

Jet filter for ATEX-zones 21/22 and 21/21. Energy-optimized units for larger filtration tasks.

The filter unit is suitable for filtration of dry dusty air types, where ATEX-equipment is needed. Filter unit can be equipped with output systems for containers, bulk bags or the like.

Filter class

Product Features

Downflow and pre-separation reduce filter media load
Optimized cleaning effect by internal filter core
Differential pressure controlled filter cleaning through integrated compressed-air system
Easy mounting, connection and operation
Longer operation times with less operation shutdowns as well as lower operation costs
Quicklock-adjustable dust container system for easy waste management
Delivered incl. relief membrane

Product Highlights

Unit with cejn-coupling for compressed-air and control at service height

Service
Standard 70L-dust container with 4 turnable wheels

Dust container
Easy filter change takes place by front door

Filter change
Insertion of step grate for use at filter replacement

Step grate

Capacities

Air volume:	Up to 45,000m³/h
Vacuum:	Up to 5,000Pa
Filter area:	104 - 520m²

Lower operating costs

Inlet with downflow and pre-separation as well as optimized filter cleaning ensure lower differential pressure above the filter cartridge. Therefore longer operation times with less shutdowns as well as lower operating costs (filter materials, electricity and compressed-air consumption) are achieved. One-cone version, which minimizes unit costs in connection with waste management.

Simple mounting, connection and operation

Filter unit is delivered in two modules that are assembled on the installation site by external flanges. Filter cartridges and control are delivered mounted. Compressed-air connection is easily connected on unit front. Easily accessible reading of differential pressure in digital display of filter control placed on unit service side. Filters are replaced through front door in unit side. Quicklock-adjustable dust container on 4 turnable wheels ensures user-friendly dust container service.

Filters:	Cartridge filters: ø325mm. Length: 1320mm

Filter control:	Differential pressure control type ECO-S with automatic after-cleaning 230V (constant)
	Compressed-air 5.5 - 6.0bar dry compressed air by cejn-coupling incl. ø10mm-hose nipple (Compressed-air quality according to ISO8473-1 2.4.1)
	Differential pressure is visible in digital display, placed on unit at service height
	1"-jet valve connected to central compressed-air tank in clean air chamber

Filter replacement:	Cartridge replacement made easily and dust-reduced by filter bayonet suspension that is loosened from clean air chambr and inserted into sack. Access by front door.

Filter material:
Standard	Material	Used for
G113	Polyester flake with PFPT-coasting, anti-static	Static-loaded or hygroscopic particles
Alternative:
G116A	Polyester flake with teflon membrane, anti-static	Finer static-loaded dust sorts

Relief membrane:

Material
Membrane: AISI 304
Mating flange: Galvanized

Relief pressure: +0.1bar
Relief area is calculated for the individual unit for Kst = 300bar m/sec and Pmax = 10bar

Relief membrane is designed as a single unit, which provides a light construction and thus fast opening. The membrane is especially developed for dust explosion relief and gives a reliable ensurance, since it relieves at an early stage, already in the start of an explosion..

NOTE
At installation of units with relief membrane you must be aware of the heavy pressure wave and the flame spread that will occur in areas outside of the relief membrane and mount the unit so that the explosion is led away from people and building components..

Principle sketch for flow through jet filter type QFG

Construction/surface:

Jet filter type QFG-A is constructed according to:

Machine Directive 2006/42/EC
ATEX-Directive 2014/34/EU
EMC Directive 2014/30/EU
Directive 2014/68/EU about pressure equipment
Low Voltage Directive 2014/35/EU
Harmonized standards: EN 13854, EN 4414, EN 12100, EN 60204-1, EN ISO 13857
Further standards: ISO 3746

Filter cabinet is made in 2mm black steel plate
Surface powder enamelled RAL 5007/7011 structure

Further is available:

Version in hot-galvanized, enamelled steel plates for outdoor mounting
Backdraft damper type KTR for piping placement
148L-dust container with sack holder*
Underframe and connections for bulk bag and drop pipe for customer-specific containers
½"-pressure regulator with manometer and pressure reducing valve
Temperature sensor type RT101 as well as alarm devices
Precoat unit type PCA
Precoat 11.5kg in sack

*Please note: Unit height is increased by 330mm

Jet filter filter type QFG-A is available in the sizes as stated in the form below.

Please, contact us for assistance in selecting the optimal unit taking into consideration air volume, dust type and volume, operation times etc.

1) Filter cartridge ø325x1320mm/13.5mm, 26m², G113 (08 129 400)
2) Pressure drop stated above filter cartridge
3) Please, note that unit height is increased by 330mm