Description
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Vertical or Horizontal Airflow
PharmaGel modules can be used for vertical or horizontal airflow applications. Horizontal flow must be specified when the modules are ordered to include bottom-edge filter supports.
Designed for Tee Grid or Plaster Ceiling
Each housing includes an integral aluminum flange on the downstream side, for use with a conventional T-bar grid system. Optional stainless steel trim is available for mounting in a plaster ceiling.
Stainless Steel Perforated Grill
The flush-mounted protective grill is constructed of 22-gauge stainless steel with a perforated design and 40% open area. Four stainless steel washers and acorn nuts hold the grill in place.
Adjustable Butterfly Damper
The round top inlet, 10″ standard, is designed with a butterfly damper conveniently operated from the downstream, or room side, using a rotary-type mechanism. A perforated diffuser plate beneath the damper promotes even distribution of air across the filter.
High Efficiency
The AstroCel ||, 2 7/8″ HEPA filter, featuring a 2″ deep pack and mini-pleat design, provides the lowest pressure drop in the industry with optimum air cleaning efficiency. Filters with 3″ and 4″ deep packs are also available.
Easy Testing
A static pressure port adjacent to the installed filter cartridge is provided for easy measurement of the resistance across the filter, or to serve as an upstream aerosol sample test port.
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Gel Seal Prevents Bypass Leakage
Gel Seal Forms Airtight Seal
AstroCel ll filter cartridges designed for PharmaGel modules each include a pocket of AAF gel sealant around the perimeter of the filter on the downstream side. When the filter is installed, a knife edge on all four sides of the housing penetrates the channel of gel to form an airtight seal. With the gel sealant pocket located on the downstream side of the housing, there is no dead alr space commonly found in competitive products that seal on the upstream side.
Sturdy Retainers Protect the Filter
The filter cartridge is held in the housing by four retainers, each located on a threaded stud, which also support the protective grill. To replace the filter cartridge, the retainers are simply turned 90 degrees. The filter retainer studs are designed to avoid penetrations through the knife edge frame, and eliminate potential leak paths. The retainer mechanism is also designed to prevent the Knife edge from bottoming out in the gel track.
Filter Selections
The PharmaGel module includes an AAF AstroCel II LPD 27%” minipleat HEPA filter with a 2″ media pack that provides 99.99% minimum efficiency. A laser-tested ULPA filter providing 99.9995% efficiency at 0.12Lm is also available. AAF filters are scanned for pinhole leaks before shipping to ensure trouble-free installation. AstroCel || 3″ and 4″ filters are also available for extra-depth housings.
Damper
The PharmaGel module standard top inlet has a 10″ diameter collar. A 12″ diameter collar is also available. Both inlets include a butterfly-type damper. Damper adjustment and air sampling is from the room side of the module through access ports at the end of the module.
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