1.Description
Fusible alloy sprinklers are sprinklers that use fusible alloys as temperature sensing elements. They are widely used in light and medium hazard grades such as hotels, commercial buildings, restaurants, warehouses, underground garages, garment factories, etc., and can also be used to protect serious hazard levels. Place. It is especially suitable for use in low temperature environments and where the nozzle does not allow self-explosion.
Product standard: GB5135.1 "Automatic sprinkler system Part 1: Sprinkler"
Design Specification: GB50084 "Design Specification for Automatic Sprinkler System"
Acceptance specification: GB50261 "Code for construction and acceptance of automatic sprinkler system"

2.Characteristics
(1) It is assembled from a copper alloy frame, a fusible alloy component, a support component, a seal, a nozzle holder, a screw, and a splash plate.
(2) The fusible alloy has stable performance, precise operating temperature and fast response.
(3) It can be used in low temperature protection places where conventional glass ball nozzles cannot be adapted, such as cold storage and underground garage.
(4) It can be used in places where the nozzle does not allow self-explosion.

3.Technical performance
(1) Nominal diameter: φ15mm, Φ20mm; interface thread: R21/2″, R23/4″
(2) Flow coefficient: Φ15mm K=80; Φ20mm K=115
(3) Rated working pressure: 1.2MPa
(4) Installation form: drooping, upright, horizontal side wall
(5) Sensitivity: standard response
(6) Nozzle rated operating temperature and color standard:

4、Structure diagram

• Y ZSTBS 15-72℃
• Y ZSTX 15-72℃
• Y ZSTZ 15-72℃
• RC Y ZST 20-74 ℃
• ZSTX 80-72°C Y Change Confirmation Inspection Report
• ZSTZ 80-72°C Y Change Confirmation Inspection Report
• Sprinkler head ZSTBS 80-72°C Y change confirmation inspection report