Pulse-Jet Filters

For more demanding filtering situations, the Series 2400 pulse-clean in-line secondary filter can be used where frequent manual cleaning of the modular unit would not be practical. Its filter bags are automatically pulse-cleaned during periods when the system is not conveying.

The unit is shown with the optional fines collection kit that fits beneath the filter. It collects the fines trapped by the filtration system to help keep the process area clean.

The pulse-clean in-line filters are also available as assemblies including pulse-clean in-line filter with mounting plate, fines collection kit (includes flex sock adapter, clamp, filter sock and drum with clamp), 6 m [20 ft] of flexible hose, carbon steel support stand and hardware. The assembly is available for 50, 76 and 100 m [2, 3 and 4 in] line sizes.

Airlock Vent (AV2 and AV4) are compact square or rectangular filter designs. 

The AV2 and AV4 filters are small, rectangular-bodied pulse jet cleaned units designed to handle extremely low air volumes up to 200 m³/hr., dependent on the material being filtered. The units are designed to vent the air from rotary valves, although they can also be used to vent surge hoppers and bins. 

Fitted with either two or four filters. 

Ideally suited for cleaning the air vented from rotary airlocks and surge hoppers. 

Suitable for venting small volumes of displaced air.

Air Vent Round (AVR) are bottom removal (below the tube sheet) pulse jet filters and are recommended for handling heavy dust loads or where the filter is used as a pneumatic receiver.

The AVR filter is a circular-bodied pulse jet cleaned bag filter unit designed to handle low air volumes up to 11,000 m³/hr, dependent on the material being filtered. The product is designed for higher pressure applications that cannot be handled with a filter of square or rectangular construction, such as product reception from vacuum or pressure conveying or clean-up systems. It is also suited to applications with low headroom, since the bags are removed from the dirty side of the filter via an access door in the filter body.

The same basic filter housing can also be fitted with pleated cartridges to offer higher filtration efficiencies and more filter area. The filter is then designated as an AVRC (Air Vent Round Cartridge), and can handle air volumes up to 19,000 m³/hr. The filters are cleaned using a high pressure pulse jet action that uses air from an external compressed air supply.

Design features of AVR/AVRC pulse jet filters:

• Clean air plenum and filter body type filters are ideally suited as a bin vent filter for storage tanks, work bins and surge hoppers.
• Clean air plenum, filter body and hopper type filters can receive the dust into a bin or through a hopper entry inlet and discharge the collected dust through an airlock for dust disposal or recycling.
• Can be configured with a pneumatic receiver section and receive product from a vacuum or pressure conveying system.

Typical applications for AVR/AVRC pulse jet filters include:

The AVS filter is a square bodied pulse jet cleaned bag filter unit designed to handle low air volumes up to 9,000 m³/hr, dependent on the material being filtered. The product is designed for applications with low headroom, since the bags are removed from the dirty side of the filter via a side access door in the filter body. 

The same basic filter housing can also be fitted with pleated cartridges to offer higher filtration efficiencies and more filter area. The filter is then designated as an AVSC (Air Vent Square Cartridge), and can handle air volumes up to 15,000 m³/hr. 

Design features of AVS/AVSC pulse jet filters: 

• Clean air plenum plus filter body type filters are ideally suited as a bin vent filter for storage tanks, work bins and surge hoppers. 
• Clean air plenum, filter body and hopper type filters can receive the dust through a hopper entry inlet and discharge the collected dust into a bin or through an airlock for dust disposal or recycling. 
• Can be customized for higher operating static pressures to meet specific application requirements.

The CSER dust filter is designed to meet challenging requirements for sanitation and inspection in the food, pet food and chemical industries. A horizontal cartridge filter, CSER is ideally suited for low headroom applications under pressure or vacuum and is primarily used as a filter receiver at the end of a pneumatic conveying system to separate the product being conveyed from the convey air. Well suited for a variety of indoor locations, the CSER has a small footprint requirement and can be easily explosion vented through the roof. Without the hopper the filter is ideally suited as a bin vent filter for storage tanks, work bins and surge hoppers.

An air pulse system cleans the cartridges and dislodges filtered product so that it drops into the hopper simplifying maintenance of the CSER. The side entry hinged tubesheet provides a single point of access to the baghouse section through the clean air plenum, eliminating additional platform or mezzanine access requirements.

Coperion FB and FV filters are process, bin vent or silo filters with pulse-jet cleaning system for high concentrations of dust. They are most commonly used in the plastics, general chemical, minerals and food industries.

• Separation of bulk material from the conveying gas at the end of a pneumatic conveying system
• Compact design united with large filter areas up to 1000 m²

The Hygienic Side Entry Receiver (HSER) filter is designed to meet challenging requirements for sanitation and inspection in the food, pet food and chemical industries. A horizontal cartridge filter, HSER is ideally suited for low headroom applications under pressure or vacuum and is primarily used as a filter receiver at the end of a pneumatic conveying system to separate the product being conveyed from the convey air. Well suited for a variety of indoor locations, the HSER has a small footprint requirement and can be easily explosion vented through the roof or from the side.

The HSER utilizes clean design concepts, minimizing horizontal surfaces where product or water might collect. The tube sheet design incorporates a machined insert, which provides a flush internal surface and a rigid surface to seal the filter elements.

The exclusive Coperion design allows for complete disassembly simplifying sanitation processes. Only the welded stud requires in-place cleaning. There is no internal structure, which makes it even easier to clean.

HSER filters operate with a reverse air pulse cleaning system that periodically releases a pulse of compressed air directed through the cartridge or bag, cleaning it and dislodging filtered material so it drops into the hopper below. This operation is another feature that makes cleaning HSER simple.

Features:

• Low headroom applications
• Requires less plant space
• Side entry and tool-free cartridge or bag and cage removal speeds maintenance with no confined space entry
• Loose parts minimized with captured fasteners
• Single point access to both clean and dirty volumes of the filter
• Simple design with minimal internal structure enables thorough clean-down

The Large Square-housing Top-removal (LST) is similar to the ST filter, but of a larger size. 

The LST filter is a square bodied pulse jet cleaned filter unit designed to handle medium to high air volumes up to 50,000 m³/hr, dependent on the material being filtered. The product is designed for applications where the footprint is limited, as bags are removed vertically from the top clean section rather than from the side via hinged opening access doors. It is also ideal for hazardous dusts, since no access is required into the dirty side of the filter during bag changing. 

The same basic filter housing can also be fitted with pleated cartridges to offer higher filtration efficiencies and more filter area. The filter is then designated as an LSTC (Large Square Top-removal Cartridge), and can handle air volumes up to 70,000 m³/hr. 

Design features of LST/LSTC pulse jet filters: 

• The filter media is installed and removed through the clean air plenum of the filter. 
• The plenum can be designed to be a walk-in plenum so that filter media replacement and maintenance can occur in an enclosure. 
• When the option of a walk-in plenum is not selected, hinged doors on top of the plenum provide access to the filter media.

Large Vent Square (LVS) are similar to the AVS with side removal, square bodied filters, but are designed to handle medium to high air volumes. 

The LVS filter is a square bodied pulse jet cleaned filter unit, designed to handle medium to high air volumes up to 50,000m³/hr., dependent on the type of dust. The filter is particularly suited for applications where headroom is an issue, since the bags can be removed via an access door on the side of the unit. 

The same basic filter housing can also be fitted with pleated cartridges to offer higher filtration efficiencies and more filter area. The filter is then designated as an LVSC (Large Vent Square Cartridge), and can handle air volumes up to 70,000 m³/hr. 

Design features of LVS/LVSC pulse jet filters: 

• Particularly suited for applications where headroom is an issue. 
• Bags can be removed via an access door on the side of the unit. 

Each unit has one small filter bag or cartridge filter element which is automatically pulse-cleaned with a burst of compressed air. These filters are made to fit the Loss-in-Weight feeder hoppers and Aerolock™ surge hoppers. Similarly, this product fits the need for a small, reliable automatic vent filter and can remain in use for long periods of time without the blinding or maintenance of a static vent sock. A pulse timer or central controller can be used to send the pulse signal.

The Modular Cartridge Bin Vent provides excellent air filtration at a low cost. Its modular design and low overall height make it easy to install and allows the operator to perform maintenance from the tank deck.

While material is pneumatically conveyed into the storage tank, fine airborne particles are trapped by the unit's large cartridge filter. This enables clean air to pass from the tank into the atmosphere.

For hygienic applications that require a high amount of sanitary design. P-Series Pulse Jet Vent Filters are most commonly used for venting in loss-in-weight feeding applications. Their sanitary design is perfect for the food and pharmaceutical industries.

The RPT is a rectangular bodied pulse jet cleaned filter unit designed to handle high air volumes up to 200,000m³/hr., dependent on the material being filtered. With topside bag replacement, RPT filters are suitable for applications with a limited footprint as filter media is removed vertically rather than from the side. It is also ideal for hazardous dusts, since no access is required into the dirty side of the filter during bag changing. A clean air plenum with hinged top doors offers easy access to the tubesheet and filters. 

Design features of RPT pulse jet filters: 

• Bags are removed vertically from the top clean section. 
• Suitable for hazardous dusts as no access is required into the dirty side of the filter during bag changing. 

Round-housing Top-removal (RT) pulse jet filters are similar to the AVR filters, but with top removal. 

The RT is a circular-bodied pulse jet cleaned filter unit designed to handle low air volumes up to 11,000m³/hr., dependent on the material being filtered. The product is designed for higher pressure applications that cannot be handled with a square or rectangular filter. It is ideal for product reception from vacuum or pressure conveying or clean-up systems. 

The same basic filter housing can also be fitted with pleated cartridges to offer higher filtration efficiencies and more filter area. The filter is then designated an RTC (Round Top removal Cartridge), and can handle air volumes up to 19,000 m³/hr. 

Design features of RT/RTC pulse jet filters: 

• Filter media is installed and removed through the air plenum of the filter. 
• The removal of the filters is through hinged top doors, which provide a tool-free media change without the need for “dirty side” or confined space entry. 

The SpaceSaver dust collector is a low profile, compact filter which is ideal for installations where there is a need for high efficiency dust collection but has limited footprint space or headroom and also for areas that are not easily connected to central dust collection systems. It is designed to handle a range of air volumes from approximately 850 to 25,000 m³/hr., dependent on the type of dust and the number of modules employed. The cartridges installed in the SpaceSaver dust collector are oval and a narrow pleat type, with over 10m² of media being packed into a relatively small cartridge, therefore ensuring that the filter is as compact as possible. 

Design features of the SpaceSaver dust collector include: 

• The patented cleaning mechanism thoroughly pulses the cartridges using directed airflow
• Saves energy with more efficient use of compressed air, and cartridge life is also extended to reduce consumable costs
• Maintenance is completely tool free for changing the cartridge 
• Unique blowpipe configuration reduces maintenance time
• Quick release handles allow fast tool-less removal of the entire pipe section

Square-housing Top-removal (ST) are similar to the AVS filter, but with top removal. 

The ST is a square bodied pulse jet cleaned filter unit designed to handle low air volumes up to 9,000m³/hr., dependent on the material being filtered. The product is designed for applications where floor space is limited, as bags are removed vertically from the top clean section rather than from the side via a hinged opening access door. It is also ideal for hazardous dusts, since no access is required into the ‘dirty’ side of the filter during bag changing. 

The same basic filter housing can also be fitted with pleated cartridges to offer higher filtration efficiencies and more filter area. The filter is then designated as an STC (Square Top removal Cartridge), and can handle air volumes up to 15,000m³/hr. 

Design features of ST/STC pulse jet filters include: 

• The filter media is installed and removed through the clean air plenum of the filter. 
• Hinged top doors allow clean air access to filter media. 
• Fast change out of filter media. 

Filter unit with pulse-jet cleaning system for installation as process filter, total separator or aspiration filter. Also available in individual design for high pressure (e.g. 30 bar(g) [435 psi (g)]), high temperature (e.g. 450 deg C [842 deg F]) with heating/cooling and with explosion protection devices.

• Separating solids from a conveying gas in downstream processes, at the end of conveying lines or within a process line
• Maximum flexibility for various applications and operating conditions with filter areas up to 1000 m²

The Vertical Cartridge Filter (VCF) removes industrial dusts while incorporating a unique design for handling medium to high air volumes. 

The dust collector comes equipped with many time and cost savings features. An easy-to-use cartridge clamp system simplifies replacement of the filter media minimizing maintenance time and lowering overall cost of operation. The filter is also equipped with a smart timer which includes an on-board sensor that reads the pressure drop across the filtering elements for on demand cleaning. This results in reduced compressed air consumption and greater cartridge life. A standard radial inlet allows for excellent material separation during moderate air volume applications while the optional high entry inlet with a pre-separation chamber is designed for optimal performance in high volume systems. The chamber separates the largest powder particles safeguarding the media from excess loads of pollutants and guaranteeing longer media life. 

A robust design adds to the overall stability of the filter. Each unit is constructed with reinforced carbon steel that is rated for 6.4 psi Pred. The VCF has also been Pred validated through a full scale third party explosion test. Explosion mitigation devices are also available with the VCF. 

Features:

• Unit rated for 20” W.C. and 250 ºF (121 °C) standard temperature 
• Carbon steel reinforced construction rated for 6.4 psi Pred: 
• Pred validated via full scale third party explosion testing 
• Bag housing flanged top and bottom 
• Radial low velocity extended inlet with end baffle 
• Structural steel legs 
• Full welded exterior (except reinforcing) and skip welded interior 
• Multiple inlet/outlet locations 
• Tool-free cartridge access: 
• Cartridge removal tool required for units three and four cartridges deep 
• Timer and solenoid valves are mounted and pre-wired in a Nema 4 enclosure mounted on plenum 
• Timer and enclosure voltage, 120VAC/1/60Hz 
• Solenoid valves pre-plumbed to diaphragm valves with Polyflo tubing 

Options:

• Explosion mitigation devices 
• Abrasion resistant inlets 
• Integral side or top mount fan packages 
• High entry inlet with replaceable bag protector baffle, carbon steel 
• High level indicator 
• 8” diameter bolted inspection port 
• HEPA filtration