FIR2022-0043+Fire_Sprinkler_Plan+4.15.2022_9.12.21_AM+2804686Hydraulic Design
Hydraulic calculations for the sizing of systems incorporating
Spears FlameGuardTm CPVC Fire Sprinkler Products must be
calculated using a Hazen -Williams C value of 150. Pipe friction
loss calculations must be made according to NFPA Standard 13.
The following table shows the allowance for friction loss for
fittings, expressed as equivalent length of pipe. For additional
information regarding friction loss, contact Spears.
Allowance for Friction LOSS in Fittings
Eauivalent Feet (meters) of Pine
3/4"
V
1-1/4"
1-1/2"
2"
2-1/2"
3"
26,7
33,7
42,4
48,3
60,3
73,0
88,9
mm
mm
mm
mm
mm
mm
mm
Tee Run
1
1
1
1
1
2
2
(0,3)
(0,3)
(0,3)
(0,3)
(0,3)
(0,6)
(0,6)
Tee
3
5
6
8
10
12
15
Branch
(0,9)
(1,5)
(1,8)
(2,4)
(3,1)
(3,7)
(4,6)
g
7
7
8
9
11
12
13
Elbow
(2,1)
(2,1)
(2,4)
(2.7)
(3,4)
(3,7)
(4,0)
1
1
2
2
2
3
4
go
Elbo w
(0,3)
(0,3)
(0,6)
(0,6)
(0,6)
(0,9)
(1,2)
1
1
1
1
1
2
2
Coupling
(0,3)
(0,3)
(0,3)
(0,3)
(0,3)
(0,6)
Hangeps & Supports
Since CPVC Fire Sprinkler pipe is rigid, it requires fewer supports
than flexible, plastic systems. Spears recommends use of
hangers that are designed and listed for supporting the CPVC Fire
Sprinkler pipe. However, some hangers designed for steel pipe
may be used if their suitability is clearly established. These
hangers must have a minimuml/2-inch, load -bearing surface,
and they must be selected to accommodate the specific pipe size.
In addition, they cannot contain rough or sharp edges that contact
the pipe, and they must not bind the pipe from axial movement.
Vertical runs must be supported so that the weight of the run is not
on a fitting or a joint.
Horizontal runs must be braced so that the stress loads (caused
by bending or snaking pipe) will not be placed on a fitting or a joint.
Support spacing is shown in the following table. See "Pipe
Deflection" in this manual for information regarding bending or
snaking CPVC Fire Sprinkler Pipe.
Pipe Size
Maximum Support
Spacing
Wt. of Water Filled Pipe
Nominal inches (Actual mm)
feet (meters)
Ibs/ft (kg/m)
3/4
5-1/2
0.427
(26,7)
(1,7)
(0,6)
1
6
0.674
(33,7)
(1,8)
(0,9)
1-1/4
6-1/2
1.078
(42,4)
(2,0)
(1,5)
1-1/2
7
1.412
(48,3)
(2,1)
(1,9)
2
8
2.223
(60,3)
(2,4)
(3,0)
2-1/2
9
3.254
(73,0)
(2,7)
(61,5)
3
10
4.831
(88,9)
(3,0)
(75,0)
Since CPVC Fire Sprinkler pipe is rigid, it requires fewer supports
than flexible, plastic systems. Spears recommends use of
hangers that are designed and listed for supporting the CPVC Fire
Sprinkler. However, some hangers designed for steel pipe may be
used if their suitability is clearly established. These hangers must
have a minimum 1/2-inch, load -bearing surface, and they must be
selected to accommodate the specific pipe size. In addition, they
cannot contain rough or sharp edges that contact the pipe, and
they must not bind the pipe from axial movement. NFPA 13D
permits "support methods comparable to those required by local
plumbing codes." The above hanger/support requirements must
also be followed on NFPA 13D systems.
CAUTION: DO NOT use hanger items such as plumber's tape or "nail -on"
devices. Pipe hanger must comply with NFPA 13,13D and 13R.
When a sprinkler head activates, a significant reactive force can
be exerted on the pipe. With a pendent head, this reactive force
can cause the pipe to lift vertically if it is not secured properly,
especially if the sprinkler drop is from small diameter pipe. The
pipe must be braced against the vertical lift -up with the closest
hanger. Refer to the following illustration and Table A & B.
A
Bad P Bras+i4'Suppnr�
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inlh+Iiiinut
Table A - Maximum Support Spacing Distance
End Line Sprinkler Head Drop Elbow
Pipe Size
Line pressure
Line pressure
Nominal inches
< 100 psi
> 100 psi
(Actual mm)
(< 689 kPa)
(> 689 kPa)
3/4
9 inches
6 inches
(26,7)
(228,6 mm)
(168,3 mm)
1
12 inches
9 inches
(33,7)
(304,8 mm)
(228,6 mm)
1-114
16 inches
12 inches
(42,4)
(406,4 mm)
(304,8 mm)
1-1/12-3
24inches
12inches
(48,3 - 88,9)
(610,0 mm)
(304,8 mm)
Note: Support spacing can be increased by approximately 50%
for lower pressures.
Table B - Maximum Support Spacing Distance
Inline Sprinkler Head Drop Tee
Pipe Size
Line pressure
Line pressure
Nominal inches
< 100 psi
> 100 psi
(Actual mm)
(< 689 kPa)
(> 689 kPa)
3/4
4 feet
3 feet *
(26,7)
(1,22 meters)
(0,91 meters)
1
5 feet
4 feet "
(33,7)
(1,52 meters)
(1,22 meters)
1-1/4
6 feet
5 feet'
(42,4)
(1,83 meters)
(1,52 meters)
1-1/2 -3
7 feet
7 feet
(48,3-88,9)
(2,13 meters)
(2,13 meters)
Note: *Support spacing can be increased by one foot for lower
pressures.
Numerous common methods are used to brace Fire Sprinkler
Pipe. A few acceptable methods include: use of a standard band
hanger by positioning the threaded support rod to 1/1 6-inch above
the pipe (however, it is important that the rod does not contact the
pipe), a wrap around U-hanger, a special escutcheon which
prevents upward movement of the sprinkler through the ceiling or
band hangers with Surge Restraints to provide surge protection
for the system.
Pipe hangers are available that are tested and UL Listed for fire
sprinkler service. These hangers comply with NFPA 13
requirements for use with CPVC fire sprinkler piping systems.
The following illustrations depict several of these.
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WATER SUPPLY / RISER DETAIL (NO SCALE)
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TYPICAL HEAD DETAILS
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Approved by Fire
04/27/2022 AFM iCFGtteI'er
F
d set of plans must be on site at the time of inspection.
o provide the approved set may result in a
ction fee. System drains) required at riser and must
the exterior. If riser is above lowest grade, 2nd drain
and signage at riser indicating location. Systems
signage IAW NFPA 13D. Coverage required to the
g areas:losets, linen closets and pantries exceeding 24
.� 'n area, with the smallest dimension greater the 3'
and having wall and ceiling surfaces of gypsum board.
Bathrooms more than 55 square feet in area. When fuel fired
equipment is present on covered decks or porches, or if living
space above, at least one quick -response intermediate
temperature sprinkler shall be installed above the equipment or
area under living space.
All fuel fired appliances, except attics if above all living areas.
nsulation - Insulation must be placed in a manner that provides the piping
varmth from the heated space and insulation from the cold space. Tenting of the
nsulation ensures that the piping has an open-air space to the heated
environment. The tenting must be stapled in place to ensure that the heat from
3elow reaches the piping and prevents freezing of the water in the pipe. (See
nsulation arrangement detail)
INSULATION ARRANGEMENT DETAIL
Caution: It is important that the
insulation be installed tight against the
joists. In unheated areas, any spaces
or voids between the insulation and the
joists cause the water in the fire sprinkler
piping to freeze.
Builder: CC Construction
Property address: 8354 Olympic View DR., Edmonds (Lot A)
Total quantity of sprinkler heads: 25
Fire sprinkler system notes:
* Fire sprinkler system design per NFPA 13d (standard for houses and duplexes).
* Fire sprinkler system to be pressure tested and flow tested.
* Sprinkler piping and fittings to be C.P.V.C. "Flameguard" by Speers Mfg.
* Installation of C.P.V.C. pipe and fittings to be done by manufacturer certified installers
* Sprinkler system to supply water connection for toilets, providing "flow through" in lieu of
backflow prevention. Dead end branch lines shall be kept to no more than 20' in length
* Sprinkler heads to be Victaulic FL-RES/C concealed pendant with escutcheons per listing. SIN
# V4906.
* Lines in attic to be protected from freezing with tent insulation (by others).
* Design spacing for Victaulic concealed pendant is 16' x 16' (256 square feet).
* Design Density is minimum .05 gpm/square foot
* Design area is for 2 head simultaneous flow.
* Minimum flow requirements (concealed pendant) are:
(1) head flow = 13 gpm @ 7.0 psi (flat or sloped ceilings up to 8/12)
(2) head flow = 13 gpm (ea) @ 7.0 psi (flat or sloped ceilings up to 8/12)
JOB: CC CONSTRUCTION
ADDRESS: 8354 OLYMPIC VIEW DR, EDMONDS (LOT A)
A. WATER PRESSURE IN STREET
80.00
B: SELECT PIPE SIZE: 1"
C: DEDUCT METER & SETTER LOSS (1")
12.00 68.00
DEDUCT BACKFLOW DEVICE LOSS (NONE)
0.00 68.00
D: DEDUCT HEAD LOSS FOR ELEVATION
HEIGHT 20 X .434 LBS/FT
8.68 59.32
E. DEDUCT PRESSURE LOSS FROM MAIN TO SRINKLER
1-1/4" WATER SERVICE
ITEM QUANTITY EQUIV FT. TOTAL FT.
PIPE: 180 1 180
ELLS: 8 2 16
R-TEES 7 3 21
B-TEES 3 2 6
TOTAL: 223
TOTAL EQUIVALENT FT. X .04 PSI/FT =
8.92 50.40
F: DEDUCT PRESSURE LOSSES FOR 1-1/2" PIPING
FROM CONTROL VALVE TO MOST REMOTE SPRINKLER
ITEM QUANTITY EQUIV FT. TOTAL FT.
PIPE: 0 1 0
ELLS: 0 7 0
R-TEES 0 1 0
B-TEES 0 8 0
TOTAL: 0
TOTAL EQUIVALENT FT. X .0178 PSI/FT =
0 50.40
F: DEDUCT PRESSURE LOSSES FOR 1-1/4" PIPING
FROM CONTROL VALVE TO MOST REMOTE SPRINKLER
ITEM QUANTITY EQUIV FT. TOTAL FT.
PIPE: 65 1 65
ELLS: 7 6 42
R-TEES 9 1 9
B-TEES 4 6 24
TOTAL: 140
TOTAL EQUIVALENT FT. X .0343 PSI/FT =
4.802 45.60
F: DEDUCT PRESSURE LOSSES FOR 1" PIPING
FROM CONTROL VALVE TO MOST REMOTE SPRINKLER
ITEM QUANTITY EQUIV FT. TOTAL FT.
PIPE: 38 1 38
ELLS: 0 5 0
R-TEES 5 1 5
B-TEES 1 5 5
TOTAL: 48
TOTAL EQUIVALENT FT. X. 1067 PSI/FT =
5.12 40.48
F: DEDUCT PRESSURE LOSSES FOR 3/4" PIPING
FROM CONTROL VALVE TO MOST REMOTE SPRINKLER
ITEM QUANTITY EQUIV FT. TOTAL FT.
PIPE: 9 1 9
ELLS: 0 4 0
R-TEES 0 1 0
B-TEES 1 3 3
TOTAL: 12
TOTAL EQUIVALENT FT. X .0296 PSI/FT =
0.36 40.12
REMAINING PRESSURE FOR SPRINKLER OPERATION
40.12
CALCULATIONS PER NFPA 13D A.10.4.3 (A) (2013 ED.)
® - VICTAULIC V4906 CONCEALED PENDANT (24)
® - VECTAULIC RGRE5/5W SIPEWALL 175 DEGREE (1)
0 - DESIGN SPRINKLER (MOST REMOTE)
c) - UP OR DOWN VERTICAL PIPE
® - RISER
SCALE: =10, -0"
DESIGN SPACING IS 16'X 16'(256 SQUARE FEET)
DENSITY IS A5 GPWSQUARE FOOT
ALL PIPINGTO BE FLAMEGUARD CPVC PER UL LISTING
LEGEND
- - RECEIVED
Apr 15 2022
CITY OF EDMONDS
OPMENT
F I R2022-0042 DEVE DE ARTMENRVICES
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NASNINGTON STATE
CEwTIFICATE OF COIIFETENar
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Kenneth H. Robinson-Elmslie
• 7859-0106-CE Level 3
Robinson Plumbing, Inc.
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