Bulletin 058 Rev. B
November 2016
Page 3 of 10
www.reliablesprinkler.com
Model LT56L Specific Application Sprinkler SIN R5814
Technical Specifications
Style:
Pendent, Recessed Pendent, or
Conical Concealed
Threads:
1/2” NPT or ISO 7-1 R1/2
Nominal K-Factor:
5.6 (80 metric)
Max. Working Pressure:
250 psi (17.2 bar)
Min. Spacing:
14 ft. (4.3 m)
Material Specifications
Thermal Sensor:
Nickel Alloy Solder Link
Sprinkler Frame:
Brass Alloy
Button:
Copper Alloy
Sealing Assembly:
Nickel Alloy with PTFE
Load Screw:
Bronze Alloy
Deflector:
Bronze Alloy
Sprinkler Finishes
(See Table H)
Sensitivity
Quick-response
Temperature Ratings
165°F (74°C)
212°F (100°C)
Recessed Escutcheons/Cover Plates
Model FV recessed escutcheon
Model FP recessed escutcheon
Model CCP cover plate
Sprinkler Wrenches
Model D (pendent)
Model GFR2 (recessed and concealed)
Listings and Approvals
cULus Listed
Model LT56L Sprinkler Components and Dimensions
Figure 2
Model LT56L Sprinkler Hydraulic Design Criteria
Table C
Minimum Flow and Residual Pressure
Max. Coverage Area
ft. x ft.
(m x m)
Flow
gpm
(l/min)
Pressure
psi
(bar)
28 x 8
(8.5 x 2.4)
23
(87)
16.9
(1.17)
28 x 10
(8.5 x 3.0)
28
(106)
25.0
(1.72)
Note:
For coverage area dimensions less than or between those listed above, use the minimum required flow for the next highest coverage
area for which hydraulic design criteria are stated.
