PresGlas®

A Division of Camali Industries (NA) Inc.

"We provide superior quality products and service through innovative design, engineering and production technologies."

HVAC Diffuser

Product Description

Diffuser liners are made from highly resilient flame-attenuated glass-fiber, which results in a durable, structurally strong, lightweight part.

Diffusers are specifically designed for thermal and acoustical control of equipment where space limitations and ease of installation are of particular concern. Available in R-4 and R-6 configurations with a foil backing.

Physical Properties

Composition:

Density:

Thickness:

Thermal Conductivity:

Temperature Limit:

Fire Hazard Classification:

Odor:

Moisture Absorption:

Linear Shrinkage:

Molded Fiberglass

16 PCF

1/16" to 1"

26 BTU/hr/ft2/°F

250°F (121°C)

25/50 (Per ASTM E 84 and UL 723 and CAN/ULC S102-M88)

None as per ASTM C 533-70

< 1% (Per ASTM C 553-70)

< 0.3% (Per ASTM C 356-60)

Sound Absorption Coefficient*

Octave Band Center, Frequencies Hz at 1" Nom. Thick

Density	125	250	500	1000	2000	4000	NRC
1.5#	0.09	0.28	0.53	0.74	0.83	0.91	0.60
3.0#	0.03	0.25	0.66	0.90	0.97	1.03	0.70
4.0#	0.05	0.35	0.86	1.03	1.02	1.03	0.80
6.0#	0.05	0.37	0.86	1.00	0.97	0.94	0.80

Noise Reduction Coefficient - average of coefficients at 250, 500, 1,000, 2,000 Hz. NRC ratings may be enhanced when a fabric facing is applied.

Per ASTM C 423-81 - Type A - #4 Mounting

Custom Fabrication

Molded Shapes are available in a variety of densities, thickness, and widths. Special facings including foil, fabric and coatings can be applied, and it can be firmly bonded to metals and other structures.

More Information

For more information on HVAC Diffuser, please call or e-mail PresGlas®. To view information on our other products, please visit our Products page.