141 Degree Fire Sprinkler Head, 3C Certified 141 Degree Fire Sprinkler Head, 141 Degree Glass Bulb Sprinkler Head, 141 Degree High-Temperature Fire Sprinkler Head

1. Description of 141 Degree/DN15 Fire Sprinkler Head (Downward Spray)

The ZSTX Pendent Type Glass Bulb Closed Sprinkler Head is a critical component in automatic fire sprinkler systems, serving as an instrument to detect fires and control or extinguish them through automatic water discharge. It is suitable for environments with temperatures not lower than 4°C and not higher than 70°C, and is used in wet pipe systems for light to moderate hazard buildings such as hotels, shopping malls, restaurants, entertainment venues, warehouses, hospitals, factories, airports, and basements.

Product Standard: GB5135.1—2003 "Automatic Fire Sprinkler Systems—Part 1: Sprinkler Heads"

2. Working Principle of 141 Degree/DN15 Fire Sprinkler Head (Downward Spray)

The working principle of this series of glass bulb sprinkler heads relies on a glass bulb filled with an organic solution that has a high thermal expansion coefficient as the thermal sensing element. At normal temperatures, the glass bulb shell can withstand a certain supporting force to ensure nozzle sealing. When a fire occurs and the temperature rises, the organic solution inside the glass bulb expands thermally, generating significant internal pressure until the glass bulb shell breaks, thereby activating the sprinkler head to discharge water.

3. Structural Features of 141 Degree/DN15 Fire Sprinkler Head (Downward Spray)

This series of glass bulb sprinkler heads is assembled from copper alloy frame, glass bulb, sealing components, glass bulb seat, set screw, and deflector. It features a compact structure and an elegant, aesthetically pleasing appearance.

3.1. The sprinkler frame is precision-forged from high-strength copper alloy, offering high strength and excellent corrosion resistance.

3.2. The thermal sensing element (glass bulb) uses high-quality domestic and international products, ensuring high strength, reliable operation, and fast response.

3.3. This series of glass bulb sprinkler heads has been tested by the National Center for Quality Supervision and Testing of Fixed Firefighting Systems and Fire-resistant Components and complies with all provisions of the national standard GB5135.1-2003 "Automatic Fire Sprinkler Systems—Part 1: Sprinkler Heads".