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 Table G and Figure 9 - 29)
Finish
Brass
Sprinkler Wrench
Model 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
Minimum 6 ft (1.8 m), maximum 10 ft (3.0 m)
between sprinklers across roof slope.
Minimum 6 ft (1.8 m) up roof slope to
nearest sprinkler, minimum 10 ft (3.0
m) down slope to nearest sprinkler,
measured parallel to 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 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)
Model GP56 Sprinkler Components and Dimensions
Figure 6
*Long dimension of coverage area to be along the roof slope parallel to trusses. Coverage is 3 ft. (0.9m) toward the peak and 12 ft.
(3.7m) toward the eave from the sprinkler. Coverage area to be measured parallel to the floor.
Bulletin 056
February 2020
Page 7 of 27
www.reliablesprinkler.com
