They are high efficiency filters composed of a series of pockets through which the air to be treated passes. These pockets are made in synthetic media and are properly clamped to a support frame, available also in plastic material. Strong seams or edge weldings ensure the good seal of pockets. The property of these filters is the high filtering surface (proportional to the depth of the bags and their number).
The version with the support frame made of plastic, besides ensuring a perfect seal between the filter media and frame, facilitates the disposal of filters after their use (incinerable).
They are used either as final filters or as pre filters to absolute filters for air treatment units and ventilation plants. These filters are particularly well suited for application (like food processing and pharmaceutical production) where use of fiberglass media may be restricted.
Synthetic media offers lower resistance than fiberglass at the same air flow rate. The following table shows the filtration class according to EN 779:2012 Standards for the available types and the nominal capacities with the pertaining initial resistance for some standard sizes.
| Front dimensions and depth | Number of pockets | capacity [m3/h] | initial pressure drop | |||
| SH65 | SH85 | SH95 | SH99 | |||
| 592 x 592 x 535 | 8 | 3000 | 90 Pa | 110 Pa | 140 Pa | 160 Pa |
| 592 x 592 x 635 | 8 | 3600 | 90 Pa | 110 Pa | 140 Pa | 160 Pa |
| 592 x 592 x 735 | 8 | 3800 | 90 Pa | 110 Pa | 140 Pa | 160 Pa |
| 592 x 592 x 915 | 8 | 4250 | 90 Pa | 110 Pa | 140 Pa | 160 Pa |
| classe di filtrazione secondo EN 779 | M6 | F7 | F8 | F9 | ||
Capacities comprised between the 75% and the 125% of the mentioned ones are allowed for a good working of filters. Approximately it is possible to consider, inside this range, a linear correspondence between resistance and capacity. The limit working temperature is of 90°C approx.
Filters with different number of pockets, different frontal and/or depth dimensions are available.
It is advisable to foresee a pre-filtration stage before these filters. The LOM-BAG filters can be installed into proper holding frames having frontal access and usually designed to fit any possible pre-filters. It is advisable to replace these filters once having reached a resistance of 300÷350 Pa.
They are high efficiency filters composed of a series of pockets through which the air to be treated passes. These pockets are made in glass microfibers media supported on the air outlet side by a nonwoven covering, and are properly clamped to a support frame. Strong seams ensure the good seal of pockets. The property of these filters is the high filtering surface (proportional to the depth of the bags and their number).
They are used in air treatment units and ventilation plants either as final filters or as pre-filters to absolute filters in order to make their life longer.
Four different type are available: VH45, VH65, VH85 and VH95. The following table shows the filtration class according to EN 779:2012 and the nominal capacities with the pertaining initial resistance for some standard sizes.
| Front dimensions and depth | Number of pockets | capacity [m3/h] | initial pressure drop | |||
| VH45 | VH65 | VH85 | VH95 | |||
| 592 x 592 x 535 | 10 | 3400 | 70 Pa | 80 Pa | 100 Pa | 130 Pa |
| 592 x 592 x 635 | 10 | 4000 | 70 Pa | 80 Pa | 100 Pa | 130 Pa |
| 592 x 592 x 735 | 10 | 4500 | 70 Pa | 80 Pa | 100 Pa | 130 Pa |
| 592 x 592 x 915 | 10 | 5000 | 70 Pa | 80 Pa | 100 Pa | 130 Pa |
| classe di filtrazione secondo EN 779:2012 | M5 | M6 | F7 | F8 | ||
Capacities comprised between the 75% and the 125% of the mentioned ones are allowed for a good working of filters. Approximately it is possible to consider, inside this range, a linear correspondence between resistance and capacity. The limit working temperature is of 90°C approx.
Filters with different number of pockets, different frontal and/or depth dimensions are available.
It is advisable to foresee a pre-filtration stage before these filters. The LOM-BAG filters can be installed into proper holding frames having frontal access and usually designed to fit any possible pre-filters. It is advisable to replace these filters once having reached a resistance of 250÷300 Pa.
They are medium efficiency filters composed of a series of pockets through which the air to be treated passes. These pockets are made in synthetic fibers filtering media (self-extinguish according to DIN 53438) and are properly clamped to a support frame, available also in plastic material. Strong edge weldings ensure the good seal of pockets. The property of these filters is the high filtering surface (proportional to the depth of the bags and their number).
The version with the support frame made of plastic, besides ensuring a perfect seal between the filter media and frame, facilitates the disposal of filters after their use (incinerable).
They are used either as final filters or as pre-filters to high efficiency filters for air treatment units and ventilation plants. Their high dirt storage capacity make them suitable should high dust charge be present.
Their self-supporting capability ensures them to bear any working discontinuity. In order to increase stability pockets with diamond separators are available on request.
The following table shows the filtration class according to EN 779:2012 for the available types, and the nominal capacities with the pertaining initial resistance for some standard available sizes.
| Front dimensions and depth | Number of pockets | capacity [m3/h] | initial pressure drop | |||
| SP 15 | SP 20 | SP 45 | SP 55 | |||
| 592 x 592 x 360 | 6 | 3100 | 40 Pa | 50 Pa | 65 Pa | 75 Pa |
| 592 x 592 x 500 | 6 | 4250 | 40 Pa | 50 Pa | 65 Pa | 75 Pa |
| 592 x 592 x 650 | 6 | 5200 | 40 Pa | 50 Pa | 65 Pa | 75 Pa |
| classe di filtrazione secondo EN 779:2012 | G3 | G4 | M5 | M6 | ||
Capacities comprised between the 75% and the 125% of the mentioned ones are allowed for a good working of filters. Approximately it is possible to consider, inside this range, a linear correspondence between resistance and capacity. The limit working temperature is of 90°C approx.
They can be installed into proper holding frames having frontal access and usually designed to fit any possible pre-filters (suggested for SP 55 types).
It is advisable to replace these filters once having reached a resistance of 250÷300 Pa.
These compact high efficiency filters are constructed by microfiberglass media formed into mini-pleats which are separated by continuous thermoplastic wires. The mini-pleat packs form rigid V-shaped bags or dihedrons sealed within end panels and support frame. Both cell sides and frame are made in plastic, ensuring the complete possibility to incinerate exhaust filters.
They are used in air treatment units and ventilation plants either as final filters or as pre filters to absolute ones. No fibres are lost by the media, so these filters are particularly well suited for applications like food processing and pharmaceutical production. RP filters are ideal for use in VAV (Variable Air Volume) systems and everywhere there are discontinuity in air flow.
four types are available: RP65, RP85, RP95 and RP99 The following table shows their filtration class according to EN 779:2012 and the nominal capacities with the pertaining initial resistance for the standard sizes.
| Dimensions [mm] | capacity [m3/h] | initial pressure drop | |||
| RP65 | RP85 | RP95 | RP99 | ||
| 595 x 595 x 292 | 4250 | 105 Pa | 125 Pa | 150 Pa | 160 Pa |
| 490 x 595 x 292 | 3400 | 105 Pa | 125 Pa | 150 Pa | 160 Pa |
| 289 x 595 x 292 | 2100 | 105 Pa | 125 Pa | 150 Pa | 160 Pa |
| classe di filtrazione secondo EN 779:2012 | M6 | F7 | F8 | F9 | |
Capacities comprised between 0% and the 125% of the nominal ones are allowed for a good working of filters. It is possible to consider, inside this range, a linear correspondence between resistance and capacity. The limit working temperature is of 90°C approx.
It is advisable to foresee a pre-filtration stage before these filters. The RP filters can be installed into proper holding frames having frontal access and usually designed to fit any possible pre-filters. It is advisable to replace these filters once having reached a resistance of 450÷500 Pa.
