In the fire sprinkler industry, it happens that there are several names for one single component. For example, a fire sprinkler cover plate is also called a sprinkler cover, cap, or concealer in the field. For this reason, it may cause misunderstanding or misnomer. The sprinkler cover plate and sprinkler escutcheon are the typical pair which will be easily mixed up. In this article, we will discuss fire sprinkler cover plates in detail. For more information about fire sprinkler escutcheons, please refer to another article “Fire Sprinkler Escutcheons: What are they? Why are they required? “.
What are sprinkler cover plates?
Fire sprinkler cover is a flat metal plate that is normally soldered to the retainer. Together they are usually called the cover plate assembly designed to concealed fire sprinkler. The cover plate assembly is installed flush with the ceiling or wall to provide a smooth appearance. There are three main functions:
1. Hide the sprinkler/support cup assembly to provide aesthetic benefits.
2. Protect the sprinkler from any unintentional mechanical damage and keep it from dust, dirt, and debris.
3. Promise the normal activation by covering the gap and blocking heat and smoke from rising into ceilings or walls.
How does the concealed sprinkler operate?
During the fire condition, the solder that holds the cover plate and the retainer melts. Then the cover plate falls away at once. Continued heating of the exposed sprinkler causes the sprinkler to activate and water to flow.
Notes on the cover plates!
The push-on /thread-on and thread-off design of the concealed cover plate assembly allows easy installation of the cover plate. Please make sure:
1. Never glue or caulk the cover plate in place.
2. Never paint the cover plate. The “DO NOT PAINT” normally shows on the cover.
3. If the cover plate falls off or is damaged, please replace it with a matched one from the same manufacturer.
4. Choose the correct operating temperature cover plate. The temperature of the cover plate is usually 20°F/7°C lower than that of the sprinkler.
