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<br /> Hydraulic calculations for the sizing of systems incorporafing
<br /> Spears FlameGuard" CPVC Fire Sprinkler Products must be
<br /> calculated using a Hazen-Williams C value of 150.Pipe friction
<br /> loss calculations must be made according to NFPA Standard 13. Insulation-Insulation must be placed in a manner that provides the piping
<br /> The following table shows the allowance for friction loss for warmth from the heated space and insulation from the cold space.Tenting of the
<br /> fittings,expressed as equivalent length of pipe.For additional insulation ensures that the piping has an open-air space to the heated
<br /> information regarding friction loss,contact Spears.
<br /> environment.The tenting must be stapled in place to ensure that the heat from
<br /> AAowooce lop FigClol Loss In FAgngs below reaches the piping and prevents freezing of the water in the pipe.(See
<br /> insulation arrangement detail)
<br /> Equivalent 1-1/4'Feet metersofPipe INSULATION ARRANGEMENT DETAIL
<br /> 314" 1' 1-114" 1-112" 2" 2-112' 3'
<br /> LL.u$7
<br /> 2�� m3m 4 4 m�3 fi0�3 ]mm0 m8m9 Pipe"A.V� jpµp
<br /> Tee Run
<br /> (0,3) (0,3) (0,3) (0,3) (0,3) (0,6) (af) -
<br /> aT 3 5 8 B 10 12 15
<br /> (0,9) (1,5) (7,B) (2,4) (3,1) (3,7) (4A)
<br /> ELgp° 7 ] 8 9 11 12 13
<br /> (2'1) (2.1) (2.4) (2.1) (3,4) (3.7) (40) S7��i1
<br /> y5• 1 1 2 2 2 3 4 nP�
<br /> Elbow (03) (0,3) (0,6) (0,6) (0,6) (0,9) (1,2) L r.l Ya9
<br /> Couplire 1 1 1 i 1 2 2 - POGCL4Ml
<br /> (0.3) (0.3) (0,3) (013) (0A) (0s) (0s)
<br /> Nesaep t 8 8ugpoMs
<br /> I % TYPICAL HEAD DETATL5
<br /> �'
<br /> Since CPVC Fire Sprinkler pipe is rigid,it requires fewer supports NO SCALE
<br /> than flexible,plastic systems.Spears recommends use of
<br /> hangers that are desgned and listed for supporting the CPVC Fire
<br /> Sprinkler pipe.However,some hangers designed for steel pipe Caution:It is important that the
<br /> may be used if their suitability is clearly established.These i' P
<br /> hangers must have a mio accommodate
<br /> 12-inch,load-bearing surface,
<br /> insulation be installed tight against the
<br /> and they must be selected to accemmodate the specific pipe size. joists.In unheated areas,any spaces
<br /> In addition,they cannot contain rough or sharp edges that contact or voids between the insulation and the
<br /> the pipe,and they must not bind the pipe from axial movement. joists cause the water in the fire sprinkler
<br /> Vertical runs must be supported so that the weight ofthe ran is not piping to freeze.
<br /> on a filling or a joint.
<br /> Horizontal runs must be braced so that the stress loads(caused
<br /> by bending or snaking pipe)will not be placed on a fifting or a joint.
<br /> Support spacing is shown in the following table. See"Pipe
<br /> Deflection"in this manual for information regarding bending or
<br /> snaking CPVC Fire Sprinkler Pipe.
<br /> Pipe S. wx Tp S PW m of Webr Fisd Pipe
<br /> Nannelid-(AOaW mm) kel(meaxs) IGafll(kgim)
<br /> 314 512 0A27
<br /> (26,7) 1,IT) (0,6)
<br /> 1 6 0.674
<br /> (aam 0.8) (0,9)
<br /> 1-114 6-12 1.078
<br /> (42.4142A) (210) (1,5)
<br /> 1-12 7 1.412
<br /> (48.3) (2,1) (1,9) r...........
<br /> (60,31 (2,4) 22 :�w p�oTd.........
<br /> 1 su rz a
<br /> ora.[rew<x
<br /> 2-12
<br /> p(83a3,,0) 2f,0 342.8
<br /> f�6,s1 8E1�ppprkl
<br /> a.Kienrath H.Rodn qb(T) 715e9-
<br /> 0101 LeW33 GtBT Robinson Plumbing.1c9 1310) x
<br /> Since CPVC Fire Sprinkler pipe is rigid,fl requires fewer supports • P4v�.a.,. rZ/
<br /> than flexible,plastic systems.Spears recommends use of
<br /> •••v
<br /> hangers that are designed and listed fors ipporfing the CPVCFim
<br /> Sprinkler.However,sorrehangeredesigined forsteelpipe maybe • •
<br /> used if their sutability is dearly established.These hangers must
<br /> have a minimuml12-inch,load-bearing surface,and they must be
<br /> selected to accommodate the specific pipe size.In addition,they ---
<br /> cannot contain rough or sharp edges that contact the pipe,and
<br /> they must not bind the pipe from axial movement NFPA 13D /4,ye
<br /> permits"support methods comparable to those required by local 6igf /b M 4^j' I pDOwN
<br /> plumbing codes.'The above hangedsupport requirements must r pra�
<br /> ms 1 L
<br /> also be followed on NFPA 13D system.
<br /> Cutr
<br /> CAUTION:DO NOT use fax,)er term such as plumbers tapea'taian° r /+
<br /> devices.Pipe lager mat comply ib NFPA 13,13D and 13R.
<br /> When a sprinkler head activates,a significant reactive force can
<br /> be exerted on the pipe.With a pendent head,this reactive force
<br /> can cause the pipe to lift vertically Hit is not secured property,
<br /> especially if the sprinkler drop is from small diameter pipe.The
<br /> pipe must be braced against the vertical lift-up with the closest U
<br /> hanger.Refer to the following illustration and Table A&B. ycs- 36 8 q (z�l�8A-y'rI '/>` 4SSG`iA'rIF �1•
<br /> A 9
<br /> 1"xw�ya m
<br /> rawrppw aisv/_PP n e'zoS E'r as+ C-ME Ct0 21• � �(--\-
<br /> rinbhWCerlinelme � SE'J C4.01ie? LAI+9SF r � v
<br /> m �
<br /> j z Z
<br /> '1' Q M z
<br /> Table A-Maximum Support Spacing Distance (� LU IT a
<br /> End Line Sprinkler Head Drop Elbow M N in g�
<br /> Pipe size lire pesee lire pmsau re �'�'7.Y�OJM F✓�Z�QIJOIy e- 1WL
<br /> N.-Winches <100psi >1000i J
<br /> (AtWal mm) (<689 kPe) a689 kPin
<br /> T� Z
<br /> W N O Q
<br /> Dt'S/6.V 3 Z
<br /> 6. 9inhas fi8 3
<br /> (26,>) 1228,E ram) (188,3,3 ram) aa..,, M1q".S7L!IL
<br /> 1 12 iM 9have l�'fi•rys 5���lJlT/ar vES/4�yf '/
<br /> (33,1) (304,0 ) (228,6 ram) �^r'
<br /> 1-1/4 16 indba 12 ind- L •A+75
<br /> (42A)
<br /> (48 1 m) (304,8mm)
<br /> 7 24irdea 12 iM
<br /> ,3-88.9) (610,0 ) (309,0 ram)
<br /> Note:Su pod spacing can be increased by approximately 50% Z Q
<br /> farlower pressures. � = Q
<br /> Table B-Maximum Support Spacing Distance p
<br /> Inline Sprinkler Head Drop Tee z H 1 to
<br /> Pipe size Lire p�sum ure prsssurs W VQ- H
<br /> .rrAW iMme Ocapa Too rei N N O
<br /> (AOWal ram) 1,689 kPa) (>689 We) w Z
<br /> 314 4fee1 3fen' I.11
<br /> (26,7) (1,22-.) (0.91m .) � O
<br /> 1 Sher 22 el �l,I�/DE1Q �/�d l�La-/ e.,,vr) /o Md6Ac sl-LLIt w
<br /> (33,7) (1,52 mean) (1,22 milers)
<br /> 1.1N I'll, 5fret. /� H �i 0 -8PA92. E-,-20A /7y,,fn°f //�dfoff-r�/OM,�S Z �p 3
<br /> (42,4) mi.nwers) (1,52 milers) Y= b N
<br /> � H /f ` � J K o
<br /> 1-1R-3 ]feel ifeel Y -0
<br /> (48.3d8.9) "is meters) ',molars) (] w
<br /> Note:*Support spacing can be increased by one foot for lower i�
<br /> pressures. lL
<br /> � Z 2
<br /> Numerous common meftlods are used to brace Fire Sprinkler
<br /> Pipe.A few acceptable methods include:use ate standard band
<br /> hanger by positioning the threaded supportmd to 11164nch above
<br /> The pipe(however,His important that the rod does not contact the Ito
<br /> pipe),a wrap around U-hanger,a special escutcheon which
<br /> prevents upward movement of the sprinkler through the ceiling or
<br /> band hangers with'Surge Restraints to provide lunge protection
<br /> for the system. � O ■\\p\mil+k
<br /> Pipe hangers am available that are tested and UL Listed for fire CC4�N
<br /> sprinkler service. These hangers comply with NFPA 13
<br /> requirements for use with CPVC fire sprinkler piping systems.
<br /> The following illustrations depict several of these. LL
<br />
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