1. Fusible Alloy Fire Sprinkler DN20 Pendant Type Description
The fusible alloy sprinkler head uses fusible alloy as the temperature-sensitive element and is widely used in light to medium hazard environments such as hotels, commercial buildings, restaurants, warehouses, underground garages, and clothing factories. It can also protect high-hazard locations. It is especially suitable for low-temperature environments and places where accidental activation of sprinklers must be avoided.
Product Standard: GB5135.1 "Automatic Sprinkler Systems - Part 1: Sprinklers"
Design Code: GB50084 "Code for Design of Automatic Sprinkler Systems"
Acceptance Code: GB50261 "Code for Installation and Acceptance of Automatic Sprinkler Systems"

2. Fusible Alloy Fire Sprinkler DN20 Pendant Type Features
(1) Assembled from copper alloy frame, fusible alloy element, support component, seal, sprinkler base, screws, and deflector.
(2) Stable fusible alloy performance, precise activation temperature, and fast response.
(3) Suitable for low-temperature environments where conventional glass bulb sprinklers cannot be used, such as cold storage and underground garages.
(4) Ideal for locations where accidental sprinkler activation must be prevented.

3. Fusible Alloy Fire Sprinkler DN20 Pendant Type Technical Specifications
(1) Nominal Diameter: Φ20mm; Connection Thread: R23/4″

(2) Flow Coefficient: Φ20mm K=115
(3) Rated Working Pressure: 1.2MPa
(4) Installation Type: Pendant
(5) Sensitivity: Standard Response