Elevated Temperature Laboratory

Pottorff's committment to accurate and credible performance data is highlighted by our state-of-the-art elevated temperature test lab. Features include:

  • 5000 fpm maximum velocity
  • 500 degree maximum temperature
  • 20 in. wg. maximum static pressure
  • UL-555 and UL-555S testing
  • AMCA 500D performance testing

The lab features a 4375 cu.ft. chamber
with 25 nozzles, 8 settling screens and
a 35 million BTU burner. The system
has two fans capable of generating
up to 90,000 CFM. All equipment has
been designed per AMCA 500D and is
currently in the process of getting UL
and AMCA certification.

Wind-Driven Rain and Water Penetration Laboratory

The Wind-Driven rain test rates the ability of a louver to protect openings behind it from water directed at the louver of speeds up to 50 mph. The Water Penetration test rates the ability of a louver to protect openings behind it from water that cascades down a wall or falls vertically in front of it. Our setup will test louvers per AMCA 500 and 511 with eventual approval for the AMCA CRP program.


The wind-driven rain and water penetration lab
features a 48" vane axial tubular fan providing
55,000 CFM. In front of the outlet is
a system of nozzles which are
programmed to sequence the pattern
of spray. In front of this is a ventilation
chamber with ductwork running to an
exhaust fan featuring an airflow
nozzle to measure ventilation airflow.