Fusible Alloy Fire Sprinkler Head for Fire Sprinkler System

• Customization: Available
• Sprinkler Installation: Upright/Pendent
• Sprinkler Head Type: Closed
• Model NO.: Y-ZST
• Alarm Valve Type: Wet Alarm Valve
• Automatically Opened and Closed Repeatedly: Can′t Automatically Opened and Closed
• Closed Fire Sprinkler System: Wet Fire Sprinkler System
• Nozzle Flow Coefficient: 242L/Min,363L/Min
• Connecting Thread: 3/4",1"
• Thread Standard: NPT/BSPT
• Norminal Diameter(mm): Dn20/Dn25
• Material: Brass
• Surface Finish: Natural Brass
• Temperature Rating: 74 Degree
• Response: Fast Response
• K-Factor: 16.8/25.2
• Working Pressure: 0.1~1.2MPa
• Application: High-Piled Storage/in-Rack Storage/Warehouse
• Transport Package: Standard Export Package
• Specification: 3/4" 1"
• Trademark: SINCO/OEM
• Origin: Quanzhou, Fujian
• HS Code: 8424
• Production Capacity: 2000pieces/Week

Product Description

Fusible alloy fire sprinkler head for fire sprinkler system
Introduction
ESFR,early suppression fast response spinkler is one kind of storage sprinklers. They are intended for use in specific applications, including the protection of high-piled and rack storage of a variety of finished goods. There sprinklers can provide more water at lower pressures or more water over a greater area of coverage. In many instances, use of the storage sprinklers can eliminate the need for additional in-rack sprinklers. It could be used for high-piled storage, in-rack storage, warehouse, high challenge occupancies and so on.
Technical parameters

Type	Early Suppression Fast Response (ESFR U/ESFR P)
Material	Brass
Surface finish	Natural brass
Operating Temperature	72 ºC
Thread diameter	3/4" NPT/BSPT (DN20)	1" NPT/BSPT (DN25)
Flow characteristic coefficient	241L/min(K=16.8)	362L/min(K=25.2)
Celling height	Greater than 45ft(13.7m) up to and including 48ft(14.6m), and a storage arrangement up to and including 43ft(13.1m)
Certificates	ISO, UL
Max working pressure	0.1~1.2Mpa (1~12 bar)
Factory Hydrostatic Test	100%, 3.0Mpa

Photoes


Factory workshop