Key features:

• Design: Typically has a cylindrical body with a heat-sensitive element, usually a glass bulb, at its center.  
• Activation: When exposed to heat from a fire, the glass bulb breaks, releasing a plug that allows water to flow through the sprinkler head.  
• Deflector: A circular deflector spreads the water into a wide spray pattern to effectively cover the protected area.  
• Installation: Mounted on the underside of pipes, allowing for easy visibility and inspection.

Types:

• Standard response: Designed to activate at a specific temperature.  
• Quick response: Activates at a lower temperature, providing faster fire suppression.

Advantages:

Effective in controlling and extinguishing fires.   

Relatively easy to install and maintain.

• Cost-effective.
• Visible for inspection and maintenance.