Temperature Rating: 200
°
F/93
°
C
Hydraulic Design Criteria:
The density required is 0.80 gpm/sq. ft. (32.6 mm/min).
Design Area: For wet systems 2000 sq. ft. (186 m
2
)
and for dry systems use 4500 sq. ft.
(418.5 m
2
)
Spacing: Maximum spacing is 100 sq. ft. (9.3 m
2
) and
the minimum is 70 sq. ft. (6.5 m
2
). The
maximum distance between sprinklers is
12'-0" (3.7 m) - 12'-6"(3.8 m) spacing is
allowed in 25'-0"(7.6 m) bays. Minimum
spacing is 6'-0" (1.8 m) apart unless
separated by baffles.
Obstructions: NFPA criteria for standard spray
sprinklers.
Type of Storage: Single, double, multiple-row and
portable rack storage (No Solid
Shelves) and solid piled or
palletizied storage.
Commodity: Class I-IV, encapsulated or non-
encapsulated. Group A and B plastics -
cartoned, expanded or unexpanded as
well as exposed, unexpanded.
Maximum Storage Height: 25'-0" (7.6 m)
Clearance: 36" (914 mm) minimum from deflector to
top of storage.
Max. Ceiling Height in Area of Storage: 30'-0" (9.1 m)
Construction Type: All types - deflector distances per
NFPA 13.
System Type: Wet or dry
Table 2 - ULTRA
K17 UL & C-UL Specific Application Guidelines
Table 3 - ULTRA K17 Factory Mutual Specific Application Guidelines
Hydraulic Design Criteria:
Class I & II commodities:
Class III, & IV, and cartoned
and Uncartoned unexpanded
Group A and B plastics:
Design Area: Calculate the Hydraulicaly most
demanding 5 Sprinkler Heads on 3
Branch Lines.
Spacing: Maximum spacing is 100 sq. ft. (9.3 m
2
) and
the minimum is 80 sq. ft. (7.4 m
2
). The
maximum distance between sprinklers is
12'-0" (3.7 m). Minimum spacing is 8'-0"
(2.4 m).
Other Details:
See Factory Mutual Loss
Prevention Data Sheets 8-9
Type of Storage: Single, double, multiple-row and
portable rack storage (No Solid
Shelves) and solid piled or
palletizied storage.
Maximum Storage Height: 25'-0"(7.6 m)
Clearance: 36" (914 mm) minimum from deflector to
top of storage.
Max. Ceiling Height in Area of Storage: 30'-0" (9.1 m)
Construction Type: All types - deflector distances per
Factory Mutual Loss Prevention
Data Sheets 2-8N.
System Type: Wet & Single Interlock Preaction
Temperature Rating: 155
°
F/68
°
C or 200
°
F/93
°
C
15 Sprinklers at
22 psi (1.5 bar)
15 Sprinklers at
10 psi (0.7 bar)
OBSOLETE
