So the question is whether this elevator machine room is considered a door in a corridor or smoke barrier.
Fire door damper.
Since the development of modern fire damper protection equipment lloyd industries inc.
Style 9 links are good for range hood applications.
Lloyd industries has been an active manufacturer of access doors fire and smoke dampers and h v a c.
It is designed for use with doors that feature very narrow frames and a large glass viewing area.
Use fire and smoke dampers from grainger in office buildings healthcare facilities and other buildings to prevent the spread of fire and smoke if that emergency should occur.
Style 6 and 7 links are often used on fire doors windows hatches dampers and blowers.
There are three different damper options for fireplace doors.
Style 8 links are commonly used on fire doors smoke and heat vents and ducts.
Fire smoke dampers are similar to fire dampers in fire resistance rating and also prevent the spread of smoke inside the ducts.
Louvers are also prohibited in smoke partitions.
When a rise in temperature occurs the fire damper.
Fire dampers are passive fire protection products used in heating ventilation and air conditioning hvac ducts to prevent the spread of fire inside the ductwork through fire resistance rated walls and floors.
Has provided underwriters laboratory approved fire dampers as well as other essential products for the h v a c.
Installed inside hvac ductwork the damper blades automatically close when a rise in temperature occurs or a smoke alarm goes off.
Fire dampers are ul555 tested and labeled devices installed in ducts and air transfer openings or air distribution systems designed to close upon the detection of heat.
This is the most common style on many stock door models.
Your fire needs this air circulation in order to burn.
Products for over 35 years.
Style 10 links are designed for use on dampers.
This area of entry is called the damper.