Quadrafoam™ Air Filters

Protect equipment with fire resistant, cleanable filters

Quadrafoam™ air filters offer low pressure drop, fire resistance, and the ability to capture large amounts of airborne dust in industrial enclosure applications. Quadrafoam™ is ideal for use in equipment where permanent, cleanable filters are most appropriate.

 

Applications

Quadrafoam™ air filters are offered in a broad range of porosities (PPI) to meet custom filtration performance requirements. They also comply with UL 94 HF-1 self-extinguishing flame safety standards for electronics in industrialmedical, telecom, and military electronics air filter applications. Quadrafoam™ air filters are the ultimate in networking and communications equipment where compliance to NEBS, ATCA and other industrial computer specifications are required.

 

More Information:

  • Applications
  • Tolerances
  • Specifications
  • Media
  • Available Models & 3D CAD
  • Standards & Classifications
  • Frame
  • Uni-Grid Support

Quadrafoam™ and Quadrafoam II™ filters are configured in made-to-size aluminum-framed, permanent type cleanable filters for fresh air intake and exhaust, or by themselves in cut-to-size pads.  Quadrafoam II air filters are specially designed for harsh environments and are formulated to better withstand prolonged exposure to high temperature and high humidity environments. Therefore, Quadrafoam II air filters are an effective filter for mist elimination, and assist enclosures in meeting various MIL-STD, NEMA and IP ratings.

Quadrafoam II™ air filters support customer outside plant enclosure compliance in the areas of flame, fungus, and corrosion resistance. Customer products configured with Quadrafoam II™ air filters have been environmentally tested to withstand dust intrusion and wind driven rain as detailed in NEBS GR-487-CORE.

We suggest you test all Quadrafoam™ products to determine how they can contribute to your product.

Framed Filters +/- 0.06″  length & width, +/- 0.03″ thickness

Pad Filters +/- 1% (0.06″ min.) length & width, +/- 0.06″ thickness

Quadrafoam™ filter media is available in all frame models in various pore sizes (25 through 45 PPI Green and 10 through 80 PPI Gray and Black).

Quadrafoam II™ filter media is available in all frame models in various pore sizes (10 through 45 PPI Gray and Black).

Quadrafoam™ and Quadrafoam II™ are open cell polyurethane foams specially coated to provide improved flame, fungus, and UV radiation resistance. They feature deep loading, high dust holding capacity and low air flow resistance for use in extremely wide climatic conditions.

Model

Quadrafoam™ Media Thickness

Frame Thickness

3D CAD Model

FF-2X

.25

.23

Create & Download

FF-3

.25

.30

Create & Download

FF-5

.25 or .375

.43

Create & Download

FF-5X

.375 or .50

.50

Create & Download

FF-1025-B

.25

.88

Create & Download

FF-1050-B

.50

.88

Create & Download

Window Pane

.25, .375 or .50

.19 to 1.00

Create & Download

Flex Frame

.25, .375 or .50

.062

Create & Download

UL 900, UL 94 HF-1 MIL-STD
NEBS GR-63-CORE ATCA
NEBS GR-78-CORE MicroTCA
NEMA CompactPCI
IP FMVSS 302

Roll formed into a strong sturdy one-piece channel, using 0.025″ thick (0.032″ thick for FF-2X), 3000 series aluminum. Frame is tightly fitted to filter media and fastened with an aluminum rivet. The UL listing, model number and air flow direction are roll imprinted into the frame. Part number is metal stamped into frame for quick, accurate identification.

In addition to the standard roll formed frame design, more custom options are also available. The Windowpane filter design allows for a customized, aluminum “frame-n-pane” design that integrates the frame and a series of crossing, reinforcing intermediates that provide media support. The Flex-Frame filter allows for a customized, flexible polypropylene “frame-n-pane” design that integrates the frame and a series of crossing, reinforcing intermediates that provide media support.

 

Model Quadrafoam Media Thickness Frame Thickness
FF-2X .25 .23
FF-3 .25 .30
FF-5 .25 or .375 .43
FF-5X .25, .375 or .50 .50
FF-1025-B .25 .88
FF-1050-B .50 .88
Windowpane .125, .25, .375 or .50 .19 to 1.00
Flex-Frame .125, .25, .375 or .50 .040, .062, .094

Expanded on our specially designed Uni-Grid equipment, using .040″ thick, 3000 series aluminum. Uni-Grid expanded aluminum is approximately 85% open to maximize air flow. Quadrafoam™ and Quadrafoam II™ filters use Uni-Grid support on one or both sides.

Filtration Performance Data:

  • Quadrafoam™
  • Quadrafoam II™
  • 0.25 in (6,35 mm)
  • 0.50 in (12,70 mm)
  • 0.125 in (3,18 mm)
Quadrafoam™ Models: FF-2X, FF-3, FF-5, FF-5X, FF-1025-B
Size Initial Resistance*
(Pascals)
Average Synthetic
Dust Weight Arrestance(%)
10 PPI 0.01 (2,49) 38
25 PPI 0.05 (12,44) 66
45 PPI 0.07 (17,41) 80
60 PPI 0.12 (29,84) 82

*in inches water gauge

Tests performed according to ASHRAE Standard 52.1 -1992 at 300 feet per minute (1,53 m/s) face velocity.

Quadrafoam Models: FF-5X, FF-1050B
Size Initial Resistance*
(Pascals)
Average Synthetic
Dust Weight Arrestance(%)
10 PPI 0.03 (7,46) 63
25 PPI 0.08 (19,89) 83
45 PPI 0.16 (39,78) 91
60 PPI 0.25 (62,16) 91

*in inches water gauge

Tests performed according to ASHRAE Standard 52.1 -1992 at 300 feet per minute (1,53 m/s) face velocity.

Quadrafoam Models: FF-2X
Size Initial Resistance*
(Pascals)
Average Synthetic
Dust Weight Arrestance(%)
45 PPI 0.04 (9,95) 65
80 PPI 0.18 (29,84) 81

*in inches water gauge

Tests performed according to ASHRAE Standard 52.1 -1992 at 300 feet per minute (1,53 m/s) face velocity.

  • 0.25 in (6,35 mm)
  • 0.50 in (12,70 mm)
  • 0.125 in (3,18 mm)
Quadrafoam II™ Models: FF-2X, FF-3, FF-5, FF-5X, FF-1025-B
Size Initial Resistance*
(Pascals)
Average Synthetic
Dust Weight Arrestance(%)
10 PPI 0.01 (2,49) 38
30 PPI 0.05 (12,44) 66
45 PPI 0.07 (17,41) 80

*in inches water gauge

Tests performed according to ASHRAE Standard 52.1 -1992 at 300 feet per minute (1,53 m/s) face velocity.

Quadrafoam II Models: FF-5X, FF-1050B
Size Initial Resistance*
(Pascals)
Average Synthetic
Dust Weight Arrestance(%)
10 PPI 0.03 (7,46) 63
30 PPI 0.09 (22,38) 83
45 PPI 0.16 (39,78) 91

*in inches water gauge

Tests performed according to ASHRAE Standard 52.1 -1992 at 300 feet per minute (1,53 m/s) face velocity.

Quadrafoam II Models: FF-2X
Size Initial Resistance*
(Pascals)
Average Synthetic
Dust Weight Arrestance(%)
45 PPI 0.04 (9,95) 65
80 PPI 0.12 (29,84) 81

*in inches water gauge

Tests performed according to ASHRAE Standard 52.1 -1992 at 300 feet per minute (1,53 m/s) face velocity.