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ESTIMATOR
ESTIMATOR
MEYERFIRE
ESTIMATOR
PSI
GPM
SYSTEM
NFPA 13 Edition
1999
2002
2007
2010
2013
2016
2019
Configuration
Loop
Tree
System Type
Deluge
Dry
Pre-Action (Double)
Pre-Action (Single)
Wet
Hazard
Light
Ordinary 1
Ordinary 2
Extra 1
Extra 2
Residential
No Override
100
120
140
150
No Override
0
100
No Override
0
100
150
250
400
500
No Override
2.8
3
4
4.2
4.4
4.9
5.6
5.8
8
11.2
16.8
22.4
26.2
26.2
Minimum Pressure
(psi)
LAYOUT
Width of Area
(feet)
No Override
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
No Override
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Sprinkler Coverage
Sprinklers per Branch
Ceiling Height
(feet)
Sprinkler Height
(feet)
Branch Height
(feet)
Height of Source
(feet)
REMOTE AREA
No Override
Yes
No
No Override
Yes
No
No Override
Yes
No
No Override
Yes
No
Adjusted Remote Area:
UNDERGROUND
No Override
1
1.25
1.5
2
2.5
3
4
6
8
10
12
14
16
Underground Length
(ft)
No Override
100
120
140
150
No Override
1.25
1.50
2.00
2.50
3.00
4.00
6.00
8.00
Pipe Schedule
Schedule 5
Schedule 7
Schedule 10
Schedule 40
Schedule 80
RISER ASSEMBLY
No Override
1.5
2
2.5
3
4
5
6
8
10
12
14
16
No Override
Alarm
Butterfly
Check
Deluge
Dry Valve
Gate
None
OS&Y
No Override
None
Waterflow
No Override
1.5
2
2.5
3
4
6
8
Backflow Loss
Minimal
Average
Conservative
RISER NIPPLE
No Override
1
1.25
1.5
2
2.5
3
4
5
6
8
Riser Nipple Height
(ft)
Riser Nipple Schedule
Schedule 5
Schedule 7
Schedule 10
Schedule 40
Schedule 80
Pipe Schedule
Schedule 5
Schedule 7
Schedule 10
Schedule 40
Schedule 80
CPVC
Connection Style:
Drop
Flex Drop
On-Pipe
Return-Bend
Sprig
No Override
Constant
Schedule A: 1-1-1.25-1.25-1.5
Schedule B: 1-1.25-1.25-1.5…
Schedule C: 1-1.25-1.5-1.5…
Schedule D: 1-1.25-1.5-2…
BRANCH PIPE
No Override
1
1.25
1.5
2
2.5
""
-
0.5
0.75
1
1.25
1.5
2
2.5
3
4
5
6
8
10
12
14
16
25
MEYERFIRE ESTIMATOR
System
Schematic
Density
C-Factor
Riser
Inside Hose
Valve Size
Outside Hose
Valve Type
K-Factor
Monitoring
Minimum Pressure
Backflow Size
Backflow Loss
Layout
Width of Area
Mains
Sprinkler Spacing (feet)
Diameter
Sprinkler Coverage
Length to Riser
Schedule
Main Located After
Ceiling Height
Riser Nipple
Sprinkler Height
Diameter
Branch Height
Height
Source Height
Schedule
Remote Area
Underground
Original Remote Area
Diameter
QR Reduction
Length
Slope Increase
C-Factor
Dry / Double Interlock
High-Temp Increase
Branch Pipe
Adjusted Remote Area
Style
Sprinklers Calculated
Sizing
Actual Remote Area
Largest Diameter
Flow Overrage
Schedule
MeyerFire.com
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