Novaflex Group, The
Richmond Hill L4B 1B7  Canada
Jun 19, 2008 Suited for industrial building construction projects, NovaVent(TM) Sealed venting system features fully-sealed, gasket connection combined with precision-engineered, close-tolerance construction. Eliminating need for field-welded joints, Double Fail Safe(TM) gaskets offer installers safe way to build venting system on-site. Available in 3-24 in. dia, system also features single-wall version that is only metallic venting system that can be cut to length in field.

DuctSox
Dubuque, IA 52002
Jun 02, 2006 Suited for use in HVAC industry, L-Vent features sealed, non-fraying edges to limit surface dusting that affects IAQ standards in occupied spaces. Product can be used for fabric duct in commercial building applications and offers even air dispersion. Cleanable through commercial laundering, design includes 1-3 rows of orifices ranging from ¼-1 in. openings, factory-engineered to produce airflows of 5-90 cfm at 0.5 in. wg.

Hart & Cooley, Inc.
Holland, MI 49423 3715
Dec 10, 2002 REZZINâ„¢ registers and diffusers are constructed of lightweight polymer materials that withstand heat and excessive moisture. Line includes 3-way deflection ceiling diffuser, double-deflection sidewall diffuser, 2-way floor register, modular core T-bar, and louvered T-bar. Many different sizes are available.

Hoffman Specialty, a unit of ITT Industries
Chicago, IL 60618-5523
Oct 11, 2002 Model 508 can be set for manual or automatic venting of water radiators. Cartridge contains hygroscopic discs that can be replaced without draining heating unit. Discs expand more than 50% in volume when soaked with water to seal off air vent passage within seconds. When water is removed, discs dry out and contract to original volume. Vent offers max working pressures of 15 psig (steam) and 50 psig (water). Applications include baseboard, steam, and hot-water radiators and convectors