www.senjusprinkler.com
Document No. U028705 • 01-26-2022
Page 1 of 7
The Model HF-RES Residential Flush Horizontal Sidewall Sprinklers are automatic sprinklers of the compressed fusible
solder type. They are decorative, low profile, flush mount sprinklers. The Frame and Cover of the sprinkler hide the Deflector
and Valve Cap assemblies. (Reference Figure 1) The Model HF-RES is designed for use in residential occupancies such
as homes, apartments, dormitories, and hotels. When aesthetics is the major consideration, the Model HF-RES should
be your first choice.
They are to be used in wet pipe residential sprinkler systems for one- and two-family dwellings and manufactured homes
per NFPA 13D; wet pipe residential sprinkler systems for residential occupancies up to and including four stories in height
per NFPA 13R; or, wet pipe sprinkler systems for the residential portions of any occupancy per NFPA 13.
The Model HF-RES has a 4.2 (60.5 LPM / bar
1/2
) K-factor which provides very low design flow rates at reduced residual
pressures, enabling smaller pipe sizes and water supply requirements.
The flush design of the Model HF-RES features a separable escutcheon providing 3/16 inch (4.7 mm) of total adjustment.
This adjustment reduces the accuracy to which the fixed pipe drops to the sprinklers must be cut to help assure a perfect
fit installation.
The Model HF-RES has been designed with heat sensitivity and water distribution characteristics proven to help in the
control of residential fires to improve the chance for occupants to escape or be evacuated. However, residential fire
sprinkler systems are not a substitute for intelligent fire safety awareness or fire safety construction required by building
codes.
G E N E R A L D E S C R I P T I O N
Residential Flush Horizontal Sidewall Sprinkler
(PTFE gasketed orifice seal design)
Model HF-RES
K-Factor: 4.2
•
SIN: SS4423
WA R N I N G S
The Model HF-RES Residential Flush Horizontal Sidewall Sprinklers described herein must be installed and maintained
in compliance with this document, as well as with the applicable standards of the National Fire Protection Association,
in addition to the standards of any authorities having jurisdiction. Failure to do so may impair the integrity of these
devices.
