Model F1-28 Pendent Sprinkler
SIN RA1311
Technical Specifications
Style:
Pendent
Recessed Pendent
Threads:
1/2” NPT or ISO 7-R1/2
Nominal K-Factor:
2.8 (40 metric)
Max. Working Pressure:
175 psi (12 bar)
Material Specifications
Thermal Sensor:
5.0mm Glass Bulb
Sprinkler Frame:
Brass Alloy
Cap:
Bronze Alloy
Sealing Washer:
Nickel with PTFE
Load Screw:
Copper Alloy
Deflector:
Brass Alloy
Sprinkler Finishes
(See Table B)
Sensitivity
Standard Response
Temperature Ratings
(1)
135°F (57°C)
155°F (68°C)
175°F (79°C)
200°F (93°C)
286°F (141°C)
360°F (182°C)
500°F (260°C)
Recessed Escutcheons
Model F1
Model F2
Model FP
Guards & Shields (New Frames)
(2)
F-7 Guard
F-8 Guard/Shield Kit
Guards & Shields (Legacy Frames)
(2)
D-1 Guard
Sprinkler Wrenches
Model W2 (pendent)
Model W4 (recessed)
Model J (New frame with guard installed)
Model JD (Legacy frame with guard installed)
Listings and Approvals
cULus
Notes:
1.
286°F (141°C) and higher temperature rated sprinklers not listed for recessed use.
2.
Not suitable for recessed pendent installations.
Model F1-28 Pendent Sprinkler Components and Dimensions
Figure 2
Note:
Please refer to Figure 3 for recessed installation.
Bulletin 066
May 2021
Page 3 of 6
www.reliablesprinkler.com
