Bulletin 056
Page 7 of 24
December 2016
www.reliablesprinkler.com
Model GP56 Specific Application Sprinkler
SIN RA5695
Technical Specifications
Style: Upright
Orientation: Top of deflector parallel to roof deck
Threads: 1/2” NPT or ISO 7-1R1/2
Nominal K-Factor: 5.6 (80 metric)
Max. Working Pressure: 175 psi (12 bar)
Sprinkler Temperature Rating: 212°F (100°C)
Sensitivity: Quick-response
Hydraulic Design Criteria
(See Tables G and H)
Finish
Brass
Sprinkler Wrench
Model R2 or W2
Listings and Approvals
cULus Listed
Hazard Classification
Light Hazard
System Types
Wet-pipe with steel or Listed CPVC pipe
Dry-pipe with steel pipe
Installation Criteria
Sprinkler Spacing
Max: 10 ft (3.0 m) across roof slope
measured along the floor
Max: 15 ft (4.6 m) up and down roof
slope measured along the floor
Min: 6 ft (1.8 m) measured parallel to the
roof deck
Distance from Top of Deflector to Roof
Deck
(measured perpendicular to roof deck)
Min: 9 inches (230 mm)
Max: 13 inches (330 mm)
Material Specifications
Thermal Sensor: Nickel Alloy Solder Link
Levers: Stainless Steel
Sprinkler Frame: Brass Alloy
Button: Copper Alloy
Button Clip: Stainless Steel
Sealing Assembly: Nickel Alloy with
PTFE
Load Screw: Bronze Alloy
Deflector: Bronze Alloy
Model GP56 Sprinkler Components and Dimensions
Figure 6
Model GP56 Minimum Required Flow and Residual Pressure
Table G
Ceiling Slope
Max. Coverage
Area
ft x ft
(m x m)
Flow
gpm
(l/min)
Pressure
psi
(bar)
4:12 to 8:12
10 x 15*
(3.0 x 4.6)
17
(64)
9.2
(0.63)
* Coverage is 3 ft (0.9 m) up slope and 12 ft (3.7 m) down slope measured along the floor.
