Engineering Specification

Model HL-22ESFR PendentAutomatic Sprinklers

Recommended CSI MasterFormat Specification Location: 21 13 00, Fire Suppression Sprinkler Systems (formerly 13930)

Sprinklers shall be Early Suppression Fast Response (ESFR) pendent suppression mode sprinklers [cULus Listed] [FM Approved] for commodity storage applications.  Sprinkler frame and deflector to be of bronze construction with deflector located inside of the frame arms.  Sprinkler shall have a maximum listed/approved ceiling-to-deflector distance of 18”.  Fusible alloy solder link assembly shall utilize the strut and lever principle of operation with approved fast response beryllium-nickel thermal element with protective [black painted, 165ºF (74ºC)] [gray painted, 212ºF (100ºC)] coating. Water seal shall consist of a Teflon-coated Bellville spring washer and brass cap assembly containing no plastic parts.  ESFR sprinklers shall have a nominal K-factor of 22.4gpm/psi^1/2 (320 l/min/bar^1/2) and [1” NPT threaded] [ISO7 R-1 threaded] [IGS^TM Style V9 Sprinkler Coupling]end connections.  Sprinklers shall have a rated working pressure of 175 psi (12 bar).Sprinkler temperature rating shall be [Ordinary 165ºF (74ºC)] [Intermediate 212ºF (100ºC)].  ESFR pendent sprinklers shall be Reliable Model HL-22, SIN RA1011. Refer to Reliable Bulletin 010 for associated sprinkler information.

For Specific Application (UL Listing) for 45’ storage of Class I - IV and cartoned unexpanded Group A plastic in 48’ buildings, add:

Sprinklers shall have a Specific Application UL listing for 45’ storage of Class I - IV and cartoned unexpanded Group A plastic in 48’ buildings.Refer to Table C of Reliable Bulletin 010 for associated information.