High efficiency, low pressure drop membrane air filters are the answer for enclosure engineers looking to take advantage of direct air cooling systems for electronics equipment protection. Custom Outside Plant Air Filters keep dust, water, wind driven rain and salt fog out of electronics enclosures that use fresh air and direct air cooling systems. Cabinets for copper, fiber, coax, ADSL, wireless, and power applications can now use outside air vented cooling systems in place of costly, inefficient closed air-to-air heat exchangers.
High efficiency outside plant filters allow designers to utilize ambient air to cool vented systems, increasing efficiency and reducing operating costs compared to closed systems with limited heat dissipation capacity, higher overall equipment cost and higher operating costs associated with condenser-equipped air conditioning systems. Outside Plant filters provide superior water and airborne contaminant protection in compliance with stringent industry standards including GR 487, NEMA, and IP enclosure standards. UAF’s unique design includes a cleanable/replaceable pre-filter to extend the life of the high-efficiency media, in a single, low-cost, integrated assembly.
In addition to high efficiency Outside Plant filters, Universal Air Filter Company also manufactures foam and metal mesh flat panel filters for use in outdoor environments.
Outside Plant membrane filters can help to meet the following enclosure ratings:
IP Ratings: IP50, IP51, IP52, IP54, IP55
NEMA Ratings: NEMA 3, NEMA 3R, NEMA 3S, NEMA 4, NEMA 5, NEMA 6
Framed Filters +/- 0.06″ length & width, +/- 0.03″ thickness
The high efficiency Outside Plant media is typically provided in a pleat configuration of 7.5 pleats per inch to maximize airflow and dust holding capacity. The pleat depth is available form 1.0″ to 4.0″ to meet the airflow and dust holding requirements of a variety of applications. Industry leading media technology allows for higher airflow and lower pressure drop resistance compared to other competitive media offerings.
The Outside Plant filter media is a UPE Membrane (ultra high molecular weight polyethylene with microglass backer). The media HEPA grade materiel is rated to 99.95% efficiency at 0.3 microns. Designed to operate in harsh outdoor environments, the media virtually eliminates dust, water, wind driven rain, and salt fog ingress. Industry leading media technology allows for higher airflow and lower pressure drop resistance compared to other competitive media offerings.
A cleanable foam pre-filter is integrated into the framed assembly to help extend the life of the Outside Plant filter.
Customized frame profiles are fabricated with 0.040″ thick aluminum designed to provide a rugged filter assembly. The aluminum is available is a RoHS compliant corrosion resistant finish
HEPA Grade 99.95% Efficiency at 0.3 microns
Filters have been tested and certified to meet the wind driven rain requirements of GR-487 Section 3.28.1 (MIL-STD-810E, Method 506.3) without the aid of mechanical protection of any kind, including louvers, hoods, or screens.
Filters have been tested and certified to meet the wind driven rain requirements of GR-487 Section 3.28.2 (UL 497, Fig 20.1) without the aid of mechanical protection of any kind, including louvers, hoods, or screens.
Filters have passed a 168 hour (7 day) salt fog test using a 5% salt fog concentration per ASTM B-117 in accordance with GR-487-Core Section 3.34.1.