SINCO FIRE AND SECURITY CO., LIMITED  

Product Name: Esfr-25 Early Suppression Fast Response Fire Sprinkler 25.2 K-Factor Model NO.: ESFR Nozzle Flow Coefficient: 242L/Min,363L/Min Closed Fire Sprinkler System: Wet Fire Sprinkler System Automatically Opened and Closed Repeatedly: Can't Automatically Opened and Closed Alarm Valve Type: Wet Alarm Valve Sprinkler Head Type: Closed Sprinkler Installation: Upright/Pendent 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 Trademark: SINCO/OEM Transport Package: Standard Export Package Specification: 3/4" 1" Origin: Quanzhou, Fujian HS Code: 8424 Product Description ESFR-25 early suppression fast response fire sprinkler 25.2 K-factorIntroductionESFR,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 parametersTypeEarly Suppression Fast Response (ESFR U/ESFR P)MaterialBrassSurface finishNatural brassOperating Temperature74 ºCThread diameter3/4" NPT/BSPT (DN20)1" NPT/BSPT (DN25)Flow characteristic coefficient 241L/min(K=16.8)362L/min(K=25.2)Celling heightGreater than 45ft(13.7m) up to and including 48ft(14.6m), and a storage arrangement up to and including 43ft(13.1m)CertificatesISO, ULMax working pressure0.1~1.2Mpa (1~12 bar)Factory Hydrostatic Test100%, 3.0MpaPhotoesFactory workshop