Reliable F1-28 Series Quick Start Manual

Features
• Standard coverage standard-response sprinklers
• Upright and pendent deflectors
• Low profile, compact design
• Available in a wide variety of finishes
Product Description
Reliable Model F1 series sprinklers are standard-response
standard spray automatic fire sprinklers utilizing a 5.0 mm glass
bulb thermal element.
Pendent and horizontal sidewall sprinklers may be installed
exposed or surface mounted using escutcheons such as the
Reliable Models B, C, or HB (reference Technical Bulletin 204).
When installed recessed, the Model F1-28 series sprinklers
are specifically listed with and may only be installed with listed
Reliable escutcheons. Refer to the technical information on the
following pages for specific listings for recessed installations and
refer to Figure 3 for dimensional information.
When fitted with an approved water shield, these sprinklers may
considered intermediate sprinklers for use in racks, below grated
walkways, and other areas where intermediate level sprinklers are
required.
Table A provides a summary of the approvals and availability of
specific Model F1-28 series sprinkler configurations. Additional
technical information for each sprinkler model is provided on the
following pages.
Note: This bulletin may contain information on New and Legacy
sprinklers that reflects a dimensional change only. Sprinkler
Identification Number (SIN), application, performance, an listings/
approval are not otherwise affected. Sprinklers with new frames
can be identified by a rotoclip indent on one side of the wrench
boss and in some cases an installed rotoclip. Sprinklers with new
frames will include the suffix "N" in the order. For reference only,
legacy version of this sprinkler can be found on Technical Bulletin
013.
F1-28 Series Sprinklers Summary
K-Factor gpm/psi
Sprinkler
Model (lpm/bar
F1-28 2.8 (40)
1/2
Orientation
)
1/2
Upright
Pendent
www.reliablesprinkler.com
Standard-Response Sprinklers
Model F1-28 Pendent
Max. Working Pressure
Listings & Approvals
cULus
Bulletin 066 May 2021
F1-28 Series
K-factor 2.8 (40)
Model F1-28 Upright
Sprinkler
Identification
psi (bar)
Number (SIN)
175 (12) RA1321
175 (12) RA1311
Table A