Products Description
Hidden Design: The sprinkler head is installed above the ceiling with only a flat cover plate visible.
Cover Plate: Held by a low-temperature solder link (usually melts at 57°C or 135°F). When the temperature rises, the plate drops, exposing the sprinkler.
Thermal Element: Once exposed, the glass bulb or fusible link activates (typically at 68°C / 155°F), releasing water.
Flush Mount: Installed flush with the ceiling for a clean, seamless look.
Sprinkler body – contains the heat-sensitive element and water seal.
Cover plate and cup – decorative cover concealing the sprinkler head.
Thermal link (solder) – holds the cover plate in place until heated.
Deflector – hidden until activation, helps distribute water uniformly.
Products Parameters
|
Model Number |
Type |
Connection |
K factor | Glass Bulb | Response |
| ZSTDY80-68℃ Q5 | Concealed |
DN15 |
80±6 | 5mm, Red | Standard |
FAQ
Q: What is a concealed fire sprinkler?
A concealed fire sprinkler is a type of sprinkler head installed behind a decorative cover plate, providing both fire protection and an aesthetically pleasing ceiling appearance. The cover plate conceals the sprinkler until it activates during a fire.
Q: How does a concealed sprinkler work?
When exposed to high heat, the temperature-sensitive cover plate falls away. Then, the glass bulb or fusible link in the sprinkler activates, allowing water to discharge and suppress the fire.
Q: What are the main advantages of concealed sprinklers?
Aesthetically blends with ceiling design
Protects sprinkler components from dust or accidental damage
Provides reliable fire suppression performance
Ideal for hotels, offices, apartments, and luxury interiors
Q: Where are concealed fire sprinklers typically used?
They are commonly used in:
Residential buildings
Offices
Hotels
Shopping malls
Hospitals
Any location requiring discreet ceiling design
Q: What temperature ratings are available?
Typical temperature ratings include:
57°C (135°F)
68°C (155°F)
79°C (175°F)
Higher ratings available for special applications