Fire Sprinkler

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Fire sprinklers are an important part of any fire suppression system. They come in various designs to suit different applications and areas within a building. Understanding the main types of fire sprinklers can help you install and maintain an effective fire protection system.

Definition Of Fire Sprinklers

A Glass Bulb Fire Sprinkler is a device designed to automatically detect and extinguish or control fires in buildings, warehouses, and other structures by spraying water or other extinguishing agents onto the flames. Fire sprinkler systems are composed of a network of pipes filled with water under pressure, which is released when a fire is detected by heat-sensitive sprinkler heads. The sprinkler heads are designed to activate individually, only in the area where the fire is located, and they can quickly extinguish or contain the fire before it spreads. Fire sprinklers are an essential component of fire safety systems in buildings.
Before delving into the different features of a sprinkler, it’s important to understand the fundamental principles of its operation. A sprinkler functions by utilizing a heat-sensitive component, which is typically made of a glass bulb (consider as Glass Bulb Fire Sprinkler) or a fusible metal link (
Fusible Alloy Fire Sprinkler) that triggers the release of water once it reaches a predetermined temperature. Sprinklers are rigorously tested and certified for specific applications, and it’s critical to adhere to their designated usage guidelines.

Various Of Types About Fire Sprinklers

As leading fire protection systems manufacturer in China, Fluid Tech Group lists hot sale types of Fusible Alloy Fire Sprinkler below:

Downward Sprinkler – Pendant Sprinkler

The most common type of fire sprinkler is the downward or “pendant” sprinkler. It orients water downwards to protect the area directly beneath it, making it suitable for areas with flat ceilings.

The deflector at the base of a pendant sprinkler distributes the spray of water in a full circle to maximize coverage. This type is ideal for residential and commercial spaces with ordinary fire hazards like offices, warehouses and hotels.

Sidewall Sprinkler

Sidewall sprinklers spray out horizontally and are installed on a wall, not the ceiling. They protect areas underneath like corridors, aisles and open spaces below beams.

Upright Sprinkler – Concealed Sprinkler

The upright type fire sprinkler features a vertical orientation, with the deflector facing upwards. It is installed flush or concealed within a ceiling or soffit.

Concealed sprinklers are used when down-facing sprinklers would be aesthetically unpleasing. They are common in areas with high finishes like shopping malls, airports and stores. However, their spray coverage is more limited compared to pendant sprinklers.

ESFR Fire Sprinkler

Early Suppression Fast Response (ESFR) sprinklers are designed for storage occupancies where they suppress fires rather than merely controlling them. Unlike standard sprinklers, ESFR sprinklers aim to extinguish fires in their early stages before they spread. They are intended to protect rack storage without in-rack sprinklers by applying enough water quickly to penetrate the emerging flames and disrupt the fire plume.

ESFR sprinklers activate extremely fast, within 50 milliseconds in terms of Response Time Index (RTI). They are specially listed to suppress high-challenge fires in storage areas.