FlowGuard Gold® CPVC Use In Plenums

Condensate Line Pipe and Fittings (1/2” through 2”)

In most commercial buildings, the area above the suspended ceiling is used as an air plenum. Model codes restrict the surface burning characteristics of the materials that can be installed in air plenums. Various tests are used to evaluate the surface burning characteristics of construction materials. The most common requirement is to restrict materials permitted within plenums to those meeting a 25/50 flame spread/smoke developed when tested in accordance with ASTM E 84. As a reference, asbestos cement has a 0/0 flame spread/smoke developed rating and red oak has a 100/100 flame spread/smoke developed rating. A third party has tested empty FlowGuard Gold®

CPVC pipe and fittings in accordance with ASTM E 84. The results of the testing show: • 1/2" empty FlowGuard Gold®

CPVC pipe and fittings have a flame spread index of 0 and a smoke developed index of 5.

• 2" empty FlowGuard Gold® CPVC pipe and fittings have a flame

spread index of 5 and a smoke developed index of 25. In summary, 1/2" through 2" FlowGuard Gold® CPVC pipe and fittings meet the 25/50 flame spread/smoke developed requirement and are suitable for condensate line applications in return air plenums.

Lubrizol Advanced Materials Inc. 9911 Brecksville Road

Brecksville, Ohio 44141-3247 216-447-5000 · 888-234-2436

FAX: (216) 447-6211 www.flowguardgold.com