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{ 3 hR.� ~ �.." #- s_•' }`4 f� yG.'"nl'ti I'y:.� {` Fk... 1'' .+. k'.'.' f'" <br /> i'i - . .�" +..'+}._ - ., '. 'r✓` ``{.t, " - "r7�''•?r_'>. T, ; ��"i s'��%*'' .,.+i5+�: '4 <br /> .�...1�- .. __�"q..�t -''a ? �,�L.� .. .3• 's{ ray ,y;¢,p;t- r-Ma r .'rz' -'✓=' <br /> • r' �' # rte• 'rt f"5:. , tet.. �., - <br /> TYPES OF S1SPRINKLER SYSTEMS ' <br /> +,a.r <br /> :' 5.53.2 If public water is not c nnei <br /> Table5 <br /> ionsc.5.3.1 Antifreeze Solut <br /> fall ► available materials indicated it <br /> {' Connected sprinkle use ire antifreeze solutions. <br /> To BicJedublrc Witer Is <br /> .5.3.3' An antifreeze solution <br /> f-= .*�.,4.. :'. pec. ras. `reczxng pint below the expected minimum to <br /> " ~ PrAnt <br /> ' specific gravity. f the prepared o <br /> h' <br /> F15. C) <br /> = _ <br /> material u hydrometer with suitable scale.. <br /> .• , a 135. -15 -26.1 <br /> Pi <br /> r <br /> 0,°o atcr : ., - 2 30.0 - * Arrangement f Su 1 � i <br /> r11V► 1.151, Ip <br /> yc Ti Lia .P, rade 40 er g 1.165 <br /> -40.0 antifreeze solutions are heavier than <br /> � so% Wafer' �:�* <br /> �r Hydrometer Scale 1-000'ca1.2 0 (interface)the heavier liquid�+ 111 be�" <br /> -1.027 + 9 -12.8 . <br /> to prevent diffusion of water into the <br /> acer � - -21.l <br /> propylene Glycol 60% Vater� 1.034 <br /> -32.2 this necessitates the use f <br /> 50%"0 Water- - 1:041 -� -51-1. lusty ted in Figure 5-5.4. ` <br /> . The prefer <br /> 40%.Water '1. �4a 0 <br /> (Subdivisions sprirllers below the interfaceete�e <br /> _ . <br /> Hydrometer Scale 1.000 to 1.120 Sub • <br /> lutin. <br /> ' Pure. <br /> * .Pa - Chemically <br /> .S If sprinklers are above the int rf� <br /> - '' ;�. i ,p,- United States Pharmacopoeia - <br /> . -mm) hole in the clapper shah <br /> water control valve and two small sols <br /> f ,3, Antifreeze solutions r ed as illustrated in Figure -a. . n <br /> Table ing cusp is also shown. <br /> Use if public Water is,Not Connected to prfnklcrs <br /> Suitable for WaterFilling Cup. <br /> i. Freezing , <br /> spec. Gray. Point p14- l�a{er- - <br /> at 0C <br /> Solution OF(15.6°0OF <br /> ' Material (b Volume) r <br /> - .1". <br /> } <br /> if glycerine is used, see Table APPROVED <br /> Glycerine 5a0 , a-INDICATING <br /> � <br /> o Water 1.078 a 13 _ � a VALVE <br /> "l l]iethlrlene Glycol - 7 <br /> ; 45% 4�ater 1.051 -� --41.1 HEATED <br /> �''a <br /> 4x, 40% Water 1.086 0.002) ARE <br /> = <br /> Hydrometer tae 1.000 to 1.1 0(Subdivisions <br /> . , -10 <br /> -2-3.3 <br /> 1.05 <br /> Glycol 61%o Water - 8. <br /> Ethylene }� 56% Water 1.063 _ � hn k aloe <br /> Water1.�� -30-40 -40.0 03iholy M C1"r) <br /> ' 47%'0 Water 1.073 <br /> 'S R <br /> r <br /> " Hydrometer Scale 1 t000 to 1.1 0�Subdi�risxons 0.0 ' <br /> 4l' <br /> 11GT' : The I&in.� 3. -mm hole in the 6 <br /> Glycol if Dropylene glycol is used. sec Table 5.5.3. . <br /> l ropylen y for expansion of the solution during a tempe <br /> 5�. Lb Carper to sprinkler leads. <br /> Calcium Chloride - . <br /> Water <br /> s0%�"Flake., a� 3 1.15 _ -25.3 ��* �t�r?s:r i�,. = 5" mm;I It. = 0.3048 m. <br /> 1.21 14 <br /> Fire co r corrosion <br /> Grade" 3.35 - -28.9 Figure 5-5.4 Arrangement of Sq <br /> inhibitor <br /> add corrosion 1.27 <br /> 5' of sodium bichromate 3-S - { X4.4 <br /> 4 t 37 I.258 - -40-0 <br /> 4 oz per gal water 1.274 <br /> .._.. ' 4.73 1.283 _,50 -45.6 <br /> 4.93 <br /> her impurities <br /> •Free from <br /> rnagnrstium chloride and of p <br /> t <br />