2.
Technical data:
Models Discharge Coeffi cient Response
Thread
Size
Max.
Working
Pressure
Min.
Working
Pressure
Temperature
Rating
Finish
F1FR56
**F1FR56LL
(1)
K 5.6
Quick
Response
1/2” NPT
(R1/2) 175 PSI 7 PSI
See
“Temperature
Ratings” Table.
See
“Finish Table”
F1FR42
**F1FR42LL
(1)
F1FRXLH
K 4.2
F1FR28
K 2.8
(1)
Low Lead Sprinklers available only with Temperature Rating 200°F/93°C
Material Data:
Frame Defl ector Load Screw *Pintle Cup Washer Bulb
DZR Brass
QM Brass
**Low Lead Brass
CDA Alloy 260,
CDA Alloy 220
or
CDA Alloy510
CDA Alloy 360
or
CDA Alloy 544
CDA Alloy 360
or
CDA Alloy 544
CDA Alloy 651
or
CDA Alloy 693
Nickel Alloy 440 or Alloy 360
coated with PTFE Adhesive
Tape
Glass
Application
Quick response sprinklers are used in fixed fire protection systems: Wet, Dry, Deluge or Preaction. Care must be
exercised that the orifice size, temperature rating, deflector style and sprinkler type are in accordance with the latest
published standards of the National Fire Protection Association or the approving Authority Having Jurisdiction. Quick
response sprinklers are intended for installation as specified in NFPA 13. Quick response sprinklers and standard re-
sponse sprinklers should not be intermixed.
Model F1FR42, F1FRXLH Upright