Reliable R1425 Manual

Features
• Standard coverage, standard-response sprinklers
• Upright, pendent, horizontal sidewall, and vertical sidewall
deflectors
• Robust solder capsule thermal element
• Available in a wide variety of finishes
Product Description
Reliable Model G Series sprinklers are standard-response
standard spray automatic sprinklers using a solder capsule
thermal element. The solder is captured in the cylinder of the
capsule by a stainless steel ball. When the solder melts, the ball
moves into the cylinder allowing the thermal element to fall away
from the sprinkler. When this occurs, the compressed strut and
lever spring free from the sprinkler. System pressure then clears
the waterway of all operating parts allowing the deflector to
evenly distribute water.
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 G 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
Figures 6 and 7 for dimensional information.
Sprinkler Summary
K-Factor gpm/psi
Model
(lpm/bar
2.8 (40)
4.2 (60)
G Upright 5.6 (80)
8.0 (115)
8.0 (115)
5.6 (80)
G Upright
Intermediate
8.0 (115)
2.8 (40)
4.2 (60)
G Pendent 5.6 (80)
8.0 (115)
8.0 (115)
2.8 (40)
4.2 (60)
G Horizontal
5.6 (80)
Sidewall
8.0 (115)
8.0 (115)
G Vertical Sidwall 5.6 (80)
1/2
Listings & Approvals
1/2 )
UL, FM
UL
UL, FM, LPCB, EC, UKCA
UL, FM
UL, FM, LPCB, EC, UKCA
UL, FM
UL, FM
UL, FM
UL
UL, FM, LPCB, EC, UKCA
UL, FM
UL, FM, LPCB, EC, UKCA
UL
UL
UL, FM, LPCB
UL
UL
FM, LPCB, EC, UKCA
www.reliablesprinkler.com
Standard-Response Sprinklers
Upright
Note: Not all versions of the product are shown.
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.
Threads
1/2" NPT, ISO 7-R1/2
1/2" NPT, ISO 7-R1/2
1/2" NPT, ISO 7-R1/2
1/2" NPT, ISO 7-R1/2
3/4" NPT, ISO 7-R3/4
1/2" NPT, ISO 7-R1/2
3/4" NPT, ISO 7-R3/4
1/2" NPT, ISO 7-R1/2
1/2" NPT, ISO 7-R1/2
1/2" NPT, ISO 7-R1/2
1/2" NPT, ISO 7-R1/2
3/4" NPT, ISO 7-R3/4
1/2" NPT, ISO 7-R1/2
1/2" NPT, ISO 7-R1/2
1/2" NPT, ISO 7-R1/2
1/2" NPT, ISO 7-R1/2
3/4" NPT, ISO 7-R3/4
1/2" NPT, ISO 7-R1/2
Bulletin 110 January 2023
Model G Series
Pendent
Table A
Sprinkler Identification
Number (SIN)
R1021
R1023
R1025
R1026
R1027
R1425
R1427
R1011
R1013
R1015
R1016
R1017
R1231
R1233
R1235
R1236
R1237
R1285