Control
These dampers are used for balancing airflow in smaller branch ducts.
What are manual balancing dampers?
Ceiling radiation dampers protect penetrations in this part of rated floor/ceiling assemblies.
What are ceiling membranes?
These dampers close under NO airflow.
What are static dampers?
What is a louver?
The year Pottorff started.
What is 1928?
These dampers automatically open when pressurized and close when pressure is relieved.
What are backdraft dampers?
Where Floor/Roof Ceiling design numbers usually found...Structural, Architectural, or Mechanical Drawings.
What are architectural drawings?
The blades for this type of fire/smoke damper can close outside of rated barriers or partitions.
What are out of partition dampers?
LIST is the acronym for what?
What is Louver Information & Selection Tool?
Pottorff pricing and configuration software.
What is SPECs?
These are good for measuring and controlling intake air.
What are air measurement stations?
UL rated floor/ceiling and roof/ceiling designs can be found on this website.
What is UL Product IQ?
Leakage rated dampers are certified to close under airflow in these types of systems.
What are dynamic systems?
AMCA is the acronym for what?
What is the Air Movement & Control Association?
Main Pottorff product categories.
What are Louvers and Dampers?
These heavy duty dampers are good for high pressure systems above 6" static pressure.
What are industrial dampers?
Ceiling radiations dampers connected to Air Handlers below ceiling membranes use this connection.
What is a duct drop or duct-to-duct connection? (either is acceptable)
This is how far a smoke damper can be installed outside a partition.
What is 24 inches?
Define Louver Free Area
What is a measure of a louvers open area OR the cumulative measure of the smallest available areas through which air can pass.
Four standard quickship options that are available.
What are 24 hour, 3 day, 7 day & QSP?
Dampers made of these materials are used in caustic (highly corrosive) environments.
What are fiberglass (FRP) dampers OR 316SS?
This is the the required duct material for dynamic ceilings.
What is minimum 28ga steel duct (hard duct)?
This is the typical temperature rating for fusible links.
What is 165o F?
Define Pressure Drop
What is the difference between internal and external pressure at a given airflow OR a measure of the change in system pressure created by installing a louver.
Name the three main varieties of product performance tests currently offered at the World Class Pottorff Laboratory.
What are Air, Fire, and Water Performance.