Sprinkler System Design Requirements Form

Type of ASRS System: Commodity Classification: Container Type: Maximum Commodity Hazard: Rack Row Depth (ft): Material Composition: Transverse Flue Space Width (inches): Horizontal Distance Between Transverse Flue Spaces (ft): Longitudinal Flue Space Width (ft): Tier Height (ft): Maximum Storage Height (ft): Ceiling Height Over Storage Area (ft):

ASRS Sprinkler System Design Specification Form

ASRS Type:

ASRS Subtype: Rack Row Depth (ft):

Container Wall Type:

Commodity Classification: Container Type: Container Material: Maximum Ceiling Height (ft): Maximum Storage Height (ft): Sprinkler System Type: Aisle Width (ft): Transverse Flue Space Width (in):

Table 1. Determining Number of Sprinklers per Branch Line for Ceiling Sprinkler System Hydraulic Design

Number of Sprinklers in Ceiling Design	Ceiling Sprinkler Type	Maximum Ceiling Slope	Ceiling Construction Type	Ceiling Sprinkler On-Line Spacing, ft (m)	Number of Sprinklers per Branch Line in Design Area
6	Extended Coverage	2 in 12	Any	Any	3
6	Extended Coverage	4 in 12	Unobstructed	Any	See Equation 1
6	Extended Coverage	4 in 12	Obstructed	Any	See Equation 2
8	Extended Coverage	1 in 12	Any	≤ 12 (3.7)	4
8	Extended Coverage	1 in 12	Any	> 12 (3.7)	3

Table 2. Hose Demand Design and Water Supply Duration

Reference: Page 19 of FM Global Property Loss Prevention Data Sheet 8-34

Ceiling Sprinkler Type	Number of Sprinklers in the Ceiling Sprinkler System Design	Hose Demand, gpm (L/min)	Water Supply Duration, min
Standard-Coverage	12 or less	250 (950)	60
	13 to 19	500 (1,900)	90
	20 or more	500 (1,900)	120
Extended-Coverage	6 or less	250 (950)	60
	7 to 9	500 (1,900)	90
	10 or more	500 (1,900)	120

Table 3. Determining Which Ceiling Sprinkler Protection Table to Use for the Protection of Closed-Top Combustible Containers or Storage Trays

Reference: Page 21 of FM Global Property Loss Prevention Data Sheet 8-34

Material Handling Method	Commodity Classification (No Open-Top Containers Permitted)	Ceiling Sprinkler System Type	Protection Table to Use
Directly on Supporting Rails	Class 1 through Class 3	Wet	4
	Class 1 through Class 3	Dry	5
	Class 4 and Cartoned Unexpanded Plastics	Wet	6
	Class 4 and Cartoned Unexpanded Plastics	Dry	7
	Cartoned Expanded Plastics	Wet	8
	Cartoned Expanded Plastics	Dry	9
	Uncartoned Unexpanded Plastics	Wet	10
	Uncartoned Unexpanded Plastics	Dry	11
	Uncartoned Expanded Plastics	Wet	12
	Uncartoned Expanded Plastics	Dry	13
On Trays	Class 1 through 4, Cartoned Plastics, and Uncartoned Unexpanded Plastics	Wet	10
		Dry	11
	Uncartoned Expanded Plastics	Wet	12
	Uncartoned Expanded Plastics	Dry	13

Table 4. Ceiling-Level Protection Guidelines on a Wet System for Class 1, 2, and 3 Commodities Stored Directly on the Supporting Rails of a Shuttle ASRS; No. of AS @ psi (bar)

Reference: Page 22 of FM Global Property Loss Prevention Data Sheet 8-34

Max. Ceiling Height, ft (m)	Wet System, 160˚F (70˚C) Nominally Rated, Pendent Sprinklers								Wet System, 160°F (70°C) Nominally Rated, Upright Sprinklers
	Quick-Response								Quick-Response
	K11.2 (K160)	K14.0 (K200)	K16.8 (K240)	K22.4 (K320)	K25.2 (K360)	K25.2EC (K360EC)	K28.0 (K400)	K33.6 (K480)	K11.2 (K160)	K14.0 (K200)	K16.8 (K240)	K25.2EC (K360EC)
10 (3.0)	12 @ 7 (0.5)	9 @ 7 (0.5)	9 @ 7 (0.5)	9 @ 20 (1.4)	9 @ 20 (1.4)	6 @ 20 (1.4)	9 @ 40 (2.8)	9 @ 55 (3.8)	12 @ 7 (0.5)	9 @ 7 (0.5)	9 @ 7 (0.5)	6 @ 20 (1.4)
20 (6.1)	12 @ 10 (0.7)	12 @ 7 (0.5)	12 @ 13 (0.9)	9 @ 20 (1.4)	9 @ 20 (1.4)	6 @ 20 (1.4)	9 @ 40 (2.8)	9 @ 55 (3.8)	12 @ 10 (0.7)	12 @ 7 (0.5)	12 @ 7 (0.5)	6 @ 20 (1.4)

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Table 1

Table 2

Table 3

Table 4

Sprinkler System Design Requirements Form

ASRS Sprinkler System Design Specification Form

Table 1. Determining Number of Sprinklers per Branch Line for Ceiling Sprinkler System Hydraulic Design

Table 2. Hose Demand Design and Water Supply Duration

Table 3. Determining Which Ceiling Sprinkler Protection Table to Use for the Protection of Closed-Top Combustible Containers or Storage Trays

Table 4. Ceiling-Level Protection Guidelines on a Wet System for Class 1, 2, and 3 Commodities Stored Directly on the Supporting Rails of a Shuttle ASRS; No. of AS @ psi (bar)

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