| Jaa | — od NO ~~: er) ho! a2 LIBRARY Michigan State University MSU LIBRARIES AT —_— RETURNING MATERIALS: Place in book drop to remove this checkout from your record. FINES will be charged if book is returned after the date Stamped below. THE FEASIBILITY OF USING AS A A SPRINKLING SYSTEM AN AUXILIARY T0 HEATING SYSTEM. O- 0- 0-0-0~-0-0-0 THESIS FOR DEGREE OF C. E. 0O-0-0-0-07-0-0-0 BY CLAUDE I AUTEN, 2_ae_e_ 0-0-0-0-0-0-0-0-0-0 LEWISTOYM, MAIN E. 0-0-0-0~-0-0-0-0-0-0 ihHesl® It is common practise to install automatic sprinkling systems in factory buildings, warehouses and structures of like nature, that will contain any inflammable material. The Fire Insurance Companies appreciate the importance of such an installation and accordingly give low rates of insurance on build- ings, stock and equipment that are protected in this manner against fire damage. The expense of such an installation is of considerable magnitude and calls for a cash out-lay from which no visible financial return is obtained other than a reduction in insurance premiums. For this reason sprinkling systems have often been omitted, where, from a practical standpoint, they should have been installed. It is often difficult to convince an Owner that such an expense is warranted, even though it is highly recommended by the Company with whom his insurance is placed. In order to overcome this objection, it has been suggested that the automatic sorinkling system be used as an auxiliary to the heating system. Yor such an arrangement to be feasible, it must not, in any way, interfere with the effeciency of the in- stallation when called upon to act in its capacity of a fire extinguisher. An automatic sprinkling system consists of a supply main, from which branch the feeder lines. To the feeder lines are connected the automatic heads. These heads are so designed that when a certain degree of temperature obtains in the surrounding air, they will open and discharge water in a spray, over whatever is beneath them. The water in the mains is usually at a pressure of from 70 to 125 lbs. to the square inch, and this may be exceeded in some instances. The construction of the sprinkler head is shown on Plate No. 2. It consists of a base plug into which a collar is screwed. A part of this collar consists of a strut, at the top of which is riveted a deflector, the purpose of which is to distribute the water in an umbrella-shaped spray. 93811 The valve consists of a glass button bear- ing upon a flexible diaphram and is held in plece by a steel key resting upon it and bearing against the strut above. This key, in its turn, is held in place by a fusible solder link. The heads are made in various grades, the composition of the solder being such that it will fuse at a pre-determined degree of temperature, such as 155 degrees, 212 degrees, etc. The Insurance Companies have a schedule designating the grade of head to be used under certain conditions. A sprinkling system arranged as an auxiliary to a heating system must be directly connected to the hot water supply. Return lines must be provided in order that a circulation of hot water be obtained. In other words, the sprinkling system:is used as a radiating surface from which heat is d@fused. In order, then, that the function of the sprinkler head be not interfered with, in any way, it must be so arranged upon the feeding system that high temperatures and pressures existing in the feed water will not affect it. The problem is to so insulate the sprinkler head that it will not be affected by the temperature or the pressure in the feed mains. It hes been sug- gested that the sprinkler head be connected with the feed water mains in the manner shown on Plate No. 2. The head is located directly above the feed main and is connected to it by a verticel stem about 2" long, a 3/4" pipe placed in a horizontal position that is 11" long and another vertical stem, 2" long. The reason for such an arrangement is stated to be that when water is forced into the main under pressure, that the stems and arm connecting the head will be filled with air and gases which will act as an in- sulator against the defusion of heat from the water in the feed main to the fusible solder in the head. The successful accomplishment of this result depends upon the following factors -- first, The temperature of the water in the feed main -- second, The pressure of the water in the feed main -- third, The temperature of the air surrounding the head. The experiments and tests described later in this article were made for the purpose of determining the temperature of the fusible solder for various values of the three items before mentioned. It is apparent that considerable damage would be caused to stock and equipment should a sprinkler head open and discharge water when there was no fire beneath it. It is doubtful if a collection for such a damage could be made from the Insurance Company and the Owner would heve to bear the loss accruing from such an accident. That such e loss might be of con- siderable magnitude is apparent when one considers, not only the financial value of the damage, but also the demoralization of employees and interference with the general routine of manufacturing operations. It has been determined, by tests, that water at a temperature of over 200 degrees can be discharged from @ sprinkler head without danger of burning or scalding the people working beneath it. The spray of water is cooled by its passage through the air. How- ever, such an occurence, without fire being present, would be demoralizing upon the employees because of the steam that would fill the surrounding atmosphere from & head discharging water at a high temperature; and it is doubtful if the ordinary class of operatives could be induced to return to their work after such a demonstration. Plate No. 1 shows a design for a combined heat- ing and sprinkling system. The supply mains, feed mains, return lines and sprinkler heads are indicated upon it. The heating arrangement shown on this Plate was guar- anteed to give 70 degrees of heat at the floor with an outdoor temperature of 20 degrees below zero. The water in the supply mains could be delivered at any temperature up to 212 degrees and the oressure could vary from 75 lbs. to 150 lbs. to the square inoh. This maximum limit might never bde reached but thre was a possibility of its occurence. The building in which the heating system shown on Plate No. 1 was installed was of re-enforced conorete design and two stories in height. The roof was of saw- tooth construction with a window area equal to 33-1/3% of the total roof area. Some side wall radiators were installed but the overhead installation was depended upon to furnish the preponderance of heat. 0-0-0-0-0-0-0-0-0-0-0-0-0-0-0-0-0-0-0 ARRANGEMENT OF TESTING APPARATUS. Plate No. 4 is a photograph of the apparatus used to make tests No. 1 to 7 inclusive. Figure l, Plate No. 3 i8 a@ plan and Fig. 2, Plate No. 3 1s an elevation showing the relation of the apparatus to the supply main from which the hot water circulation is obtained. Fig. 3, Plete No. 3 is a cross section taken through the head and oil well. The temperature of the fuse was obtained by placing a thermometer in the oil well. Fig. 4, Plate No. 3 is a cross section through the head taken in an opposite direction from the sketch shown by Fig. 3, Plate No. 3. The valve in the head was secured in place by two steel pins, each 1/16 of an inch in diameter and placed as indicated on the drawing. Small in- Glined holes were drilled in the strut and the steel pins driven through them until a bearing was obtained upon the top of the valve button. A 3" by-pass was connected to a 3" pipe line through which feed water was being pumped into the boilers. Dimensions are shown on Fig. 1, Plate No. 3. Gate valves were placed at each end of the by-pass. In the top of the by-pass was placed a sprinkler head with its connections which had been taken from the in- stallation shown on Plate No. l. This arm was placed in the position shown on Fig. 1 and not directly over the by-pass as it wes placed in the installation. An oil well containing a thermometer and a pressure gauge were installed in the by-pass as close to the head connection as possible. Upon the end of the arm opposite the head was connected a tee with an oil well and a thermometer above and a globe valve below. Plate No. 5 is a photograph of the apparatus from which tests No. 8 and 9 were obtained. The Sprinkler head with its connections wéee connected to a pipe line conveying return water from the boilers to the fsed water heaters. This return line was well insulated against radiation. Tests No. ll and 12 were obtained by means of a similar installation connected to a pipe line conveying the feed wator from the heaters to the boilers. The pressures obtained were the same in both instances, but the temperatures were different. Plate No. 6 - 7 - 8 - 9 and 10 show a graphical representation of the results obtained from tests No. 2 - 3-9 - 11 and le. Plate No. 11 and 12 show a curve obtained by platting, vertically, the temperature of the feed water in degrees; and hor- izontally, the temperature of the fuse in degrees as obtained from results observed in tests No. 8 and 9. The curves shown on Plate Nos. 6 to 10 inclusive show that the pressure in the main and the temperature of the water in the main vary together. As the pressure increases or decreases, so the temperature also increases or decreases. Likewise the temperature of the air varies in a similar manner as the two items before. mentioned. The temperature of the fuse in the head also veries uniformly with the other items. These ob- servations apply to all tests, no matter what amount of pressure or what degree of temperature exists in the main. Tests No. 1 and 2 were made with an average pressure of 75 lbs. and an average temperature of the feed water of 205 degrees. By dividing the temperature of the fuse by the temperature of the feed water, a ratio of 66% to 69% is obtained. Tests No. 9 and ll were made with a uniform pressure of about 150 lbs. to the square inch and a feed water temperature of from 122 degrees to 182 degrees. By dividing the temperature of the head by the temperature of the feed water, a ratio of 85% is obtained. The other tests recorded, but not platted, give approzimately the same results when treated in a@ similar manner. It, therefore, seems safe to assume that like results will be obtained under similar condi- tions. Therefore, with any given pressure between these limits, of 75 lbs. to 150 lbs. the temperature of the head should vary in proportion to the temperature of the feed water, in other words, a pressure of 100 lbs. with a feed water temperature of 200 degrees would pro- duce a temperature, at the fuse, of 146 degrees. This result is calculated as follows: 86% minus 66% is equal to 20%. 100 lbs. minus 75 lbs. is equal to 25 lbs. 150 lbs. minus 75 lbs. is equal to 75 lbs. 25 lbs. divided by 75 lbs. is equal to 1/3. 1/3 of 20% is equal to 1%. 66% plus 7% is equal to 73%. 173% of 200 degrees is equal to 146 degrees. That the temperature of the fuse is in constant ratio with the temperature of the feed water is evident because of the straight line which is obtained by platting these two as variables. This result is shown on Plate No. ll. Several similar curves were platted with like results. It is usually customary to install a sprinkler head rated at 155 degrees where an air temperature of 100 degrees will never be exceeded unless a fire is started beneath it. This gives what may be called a factor of safety of the head of 55 degrees or of 33% of the grade of the head. If this rule be followed out, it would mean that a head graded at 212 degrees would be required when in- stalled on a combined system operating under a 100 lb. pressure and 200 degrees to 212 degrees in temperature. Where there is any likelshoog of these limits being exceaded, it seems that it would perhaps be advisable to use even & higher grade than this in order to insure against the opening of a head without the contributing factor of a fire. It is to be regretted that a longer time was not available for the continuing of these tests in order to prove or disapprove the statement that certain gases are formed by continuous action which act as an insulator against the transmission of heat. The writer believes that similér results to those recorded herein will be obtained in the average installation of a combined heating and sprinkling systen. —aus | TEST DATA. In the upper left hand corner of the sheet is the test number. At the upper right hand corner of the sheet is the date on which the test was made and the location. Following these are the con- ditions under which the tests were conducted. Column No. 1 shows the period at which the readings were taken. Column No. 2 gives the temperature, in degrees Fahrenheit, of the air at a distance of 6" from the head. Column No. 3 gives the pressure, in pounds to the square inch, in the by-pass. Column No. 4 gives the temperature, in degrees Fahrenheit, of the feed water in the by-pass. Column No. 5 gives the temperature, in degrees Fahrenheit, at the fuse in the head as determined by the thermometer in the oil well as shown in Fis. 3, Plate No. 3. Test No. l March 6, 1913. Location - Bates Mfg. Co., Lewiston, Me. Conditions - Sprinkler head above valve was filled with oil and ther- mometer bulb immersed in it. Periods : Temp. air : Pressure : Temp. of : Temp. head : in degrees: lbs. per : feed water : in degrees Fahr. : sq-e inch : in degrees : Fahr. Fahr. 8.00 79 75 200 146 8.30 80 75 202 147 9.00 82 75 204 147 9.30 90 77 204 149 10.00 93 80 203 154 10.30 94 79 205 164 11.00 95 79 205 162 12.00 95 80 204 165 1.30 79 80 184 152 2-00 94 78 204 164 2-30 95 78 205 165 3-00 94 75 200 154 3.30 95 75 204 165 4.00 96 75 204 165 4.30 96 77 204 165 5.00 95 76 202 158 It was decided that the oil conducted the heat from the walls of the head to the fuse and there- fore the arrangement as shown on Plate No. 3 was developed to overcome this objection. Test No. 2. March 6, 1912. Location - Bates Mfg. Co., Lewiston, Moe. Conditions - Apparatus is shown on Plate No. 3. Circulation had been on twelve hours pre- vious to beginning of test. Periods : Temp. air ; Pressure ;: Temp. of : Temp. head : in degrees: lbs. per : feed water : in degrees Fahr. : sq. inch : in degrees : Fahr. : : Fahr. 8.30 84 70 206 122 9.00 87 75 206 126 9.30 88 75 205 131 10.00 89 76 206 134 10.30 89 75 206 135 11.00 92 75 206 137 11.30 92 76 205 137 12.00 94 75 205 136 1.00 93 77 206 135 1.30 92 75 205 134 2-00 92 75 205 134 2.350 92 73 205 134 3-00 91 74 205 134 3-30 91 75 206 133 4.00 91 75 206 133 4.30 90 76 205 134 5.00 90 75 205 134 Test No. 3. March 8, 1913. Location - Bates Mfg. Co., Lewiston, Me. Conditions - Apparatus same as shown on Plate No. 3. Circulation had been on two days previous to beginning of test. Periods : Temp. air : Pressure : Temp. of : Temp. head : in degrees: lbs. per : feed water : in degrees Fahr. : sq. inch : in degrees : Fehr. Fahr. 1.30 90 60 174 108 2-00 97 58 184 128 2.30 97 62 183 128 3-00 96 63 187 129 3-30 96 63 186 128 4.00 97 63 186 128 4,80 97 63 186 128 5.00 96 62 187 129 5.30 97 62 185 128 Test No. 4. March 9, 19132. Location - Bates Mfg. Co., Lewiston, Me. Conditions - Apparatus same as shown on Plate No. 3. Circulation had been on three days previous to beginning of test. oan Gp & Ge Ge & Gp &@ Gh a= G@ be a= @ Bo Ge Ge ae Gh Gh G&G ae & ae = GG Ge ew & ap @ Se & am SD Gb & ow a G> & ow a SD ow GD a GD & Gp GF ae = == ee oe ap Gh ar Ge ap & Gh & ob & Ge GB bh & ae Ge Ge oe GF Gh Ge & &@ Ge Ge Ge Gh & Ge & a aw 4G > SP 6D aw & S&S G S&S SG & Ge G&G SF & GF G a & oH GD Periods : Temp. air : Pressure : Temp. of Temp. head : in degrees: lbs. per : feed water : in degrees Fahr. :; sqe inch : in degrees ; Fahr. Fahr. 8.30 80 65 136 92 9.00 82 65 134 90 9.30 80 64 128 87 10.00 86 63 118 92 10.30 85 60 112 93 11.00 83 60 82 82 11.30 76 60 80 78 Test No. 5. March 11, 1913. Location - Bates Mfg. Co., Lewiston, le. Conditions - Apparatus is shown on Plates No. 3 and 4. By-pass had been closed for 14 hours. First reading taken before opening. gate valves. Periods : Temp. air : Pressure : Tempo. of : Temp. head : in degrees: lbs. per : feed water ; in degrees Fahr. : sq- inch : in degrees : Fahr. : : Fahr. 8.00 85 0 160 84 9.00 93 75 194 10.00 96 76 204 {38 11.00 101 78 204 136 12.00 100 75 204 136 1.90 90 75 200 130 2.00 104 76 203 142 3-00 101 75 203 138 4.00 94 75 203 138 §.00 105 77 204 142 6.00 102 76 203 126 Test No. 6. March le, 1913. Location - Bates Mfg. Co., Lewiston, Me. Conditions - Apparatus same as shown on Plate No. 3. Circulation had been on two days previous to beginning of test. Periods : Temp. air Pressure : Temp. of : Temp. head ; in degrees: lbs. per : feed water ;: in degrees Fahr. : sq. inch : in degrees : Fahr. : : Fahr. : 8.00 83 74 192 116 9.00 92 75 200 119 10.00 96 75 204 130 11.00 100 75 204 | 136 12.00 101 76 205 136 1.00 92 75 200 130 2-00 98 77 206 143 3-90 101 76 204 141 4.00 100 75 203 138 5.00 99 75 202 138 6.90 98 75 200 138 Test No. 7. March 14, 1913. Location - Bates Mfg. Co., Lewiston, Me. Conditions - Apparatus is shown on Plate No. 3. Circulation had been on twelve hours previous to beginning of test. Periods : Temp. air : Pressure : Temp. of : Temp. head >: in degrees: lbs. per : feed water : in degrees : Fahr. : sq-e inch : in degrees : Fahr. Fahr. 8.00 82 75 193 118 9.00 95 76 200 119 10.00 96 76 204 126 11.00 101 77 204 130 12.00 97 76 203 135 1.00 102 75 200 130 2200 102 77 205 138 3-00 100 77 203 137 4.00 100 78 204 138 5.00 97 75 202 136 6.00 96 75 202 136 After this test was made, the by-pass was left open. Observations made thirty days thereafter were nearly identical with those recorded above. Test No. 8. April 30, 1913. Location ~- Poland Paper Co., Mechanic Falls, Me. Conditions - (1) Connection made to pipe conveying water to heaters. (2) Circulation opened into stem leading to the head, at beginning of test. ap op @©@ ow a= Gp &@D GF &® OF aw of ap Gp © ae aa Gap oe ap & of GD GD ob 2D G&D aw ©&® ew op SD 2D OP ow & we ew ow SS SP Se So 6 SS Ow 2 Se 2 2S a SD PS aw Periods : Temp. air : Pressure : Temp. of : Temp. head : in degrees: lbs. per : feed water : in degrees Fahr. : sq. inch : in degrees ; Fahr. : : Fahr. : 7.15 78 150 132 97 7.50 80 155 144 107 7245 78 150 143 108 8.00 79 148 136 109 8.15 77 145 124 102 8.30 77 154 120 98 8.45 76 152 115 96 9.00 75 155 122 95 9.15 76 152 129 100 9.30 76 150 \ 126 98 9.45 77 148 116 97 10.00 77 155 123 96 10.15 77 152 135 103 10.30 80 152 132 107 10.45 78 148 121 102 11.00 77 152 118 97 11.15 78 152 116 97 11.30 77 152 120 98 11.45 79 150 119 98 12.00 80 153 123 — = 99 Continued --- Test No. 8 Continued. April 30, 1913. Location - Poland Paper Co., Mechanic Falls, Me. Conditions - (1) Connection made to pipe conveying water to heaters. (2) Circulation opened into stem leading to the head, at beginning of test. Periods : Temp. air : Pressure : Temp. of : Temp. head ; in degrees: lbs. per ;: feed water : in degrees Fahr. : sq. inch : in degrees : Fahr. Fahr. : 12.15 81 147 142 106 12.30 82 156 137 108 12.45 81 152 132 107 1.00 81 147 118 102 1.15 78 152 112 96 1.30 80 152 110 93 1.45 80 155 110 93 2.00 80 152 105 92 2.15 80 150 112 92 £2.30 79 150 115 95 2.45 81 149 125 100 3-00 83 150 137 99 3-15 82 154 141 111 3-350 83 150 143 113 345 83 158 141 114 4.900 83 152 122 106 4.15 82 148 119 103 Test No. 9. May 1, 1913. Location - Poland Paper Co., Mechanic Falls, Me. Conditions - (1) Connection made to Pipe conveying water to heaters. (2) Circulation continued from Test No. 8. Periods ; Temp. air : Pressure : Temp. of : Temp. head ; in degrees: lbs. per : feed water : in degrees Fahr. :; sq. inch : in degrees ; Fahr. Fahr. 7.15 78 145 95 90 7.230 80 148 100 90 7.45 82 150 103 88 8.00 79 145 114 93 8.15 80 150 116 95 8.30 79 153 110 93 8.45 79 142 105 90 9.00 719 153 100 87 9.15 80 148 106 90 9.30 80 155 110 93 9.45 81 145 114 95 10.00 82 152 115 96 10.15 82 145 120 97 10.30 82 145 120 97 10.45 82 143 120 98 11.00 84 145 121 103 11.15 84 152 118 1006 11.30 84 155 122 102 11.45 83 140 125 103 12.00 83 148 126 103 Continued -- Test No. 9 Continued. May 1, 1913. Location - Poland Paper Co., Mechanic Falls, Me. Comitions - (1) Connection made to pipe conveying water to heaters. (2) Circulation continued from Test No. 8. Periods : femp. air : Pressure : Temp. of : Temp. head : in degrees: lbs. per : feed water : in degrees Fahr. : sq. inch : in degrees : Fahr. Fahr. 12.15 83 155 126 105 12.30 83 150 121 102 12.45 83 142 121 102 1-00 88 138 121 103 1.15 -= --- --- --- 1.30 88 155 122 102 1.45 89 155 125 106 2.00 90 155 128 107 215 90 150 128 107 2230 92 148 132 108 2.45 93 165 140 113 3-00 94 150 144 116 3.15 95 150 143 115 3-30 94 148 144 117 3.456 96 150 147 117 -4,00 95 152 142 118 4.15 94 350 136 114 Test No. ll. May 6, 1913. Location - Poland Paper Co., Wechanic Falls, Me. Conditions - (1) Connection made to pipe conveying water from heaters to boilers. (2) Circulation opened into stem leading to the head at the beginning of test. 1 2 3 4 5 Periods : Temp. air : Pressure : Temp. of : Temp. head : in degrees: lbs. per : feed water : in degrees Fahr. : sqe inch : in degrees : Fahr. : : Fahr. : 7215 ~ - 130 152 170 135 7.50 132 155 180 140 7.45 134 150 191 156 8.00 134 148 189 160 8.15 133 146 185 158 8.30 132 150 185 156 8.45 131 150 181 155 9.00 130 150 189 155 9.15 128 150 178 153 9.30 130 150 180 156 9.45 130 150 180 156 10.00 130 148 180 156 10.15 130 150 178 154 10.30 130 150 180 156 10.45 130 150 182 156 11.00 134 150 182 156 11.15 132 150 182 156 11.30 132 150 182 156 11.45 134 148 180 155 12.00 134 150 180 156 Continued -- Test No. 11 Continued. May 6, 1913. Location - Poland Paper Co., Mechanic Falls, Me. Coniitions - (1) Connection made to pipe conveying water from heaters to boilers. (2) Ciroulation opened into stem leading to the head at the beginning of test. Periods Temp. air : Pressure : Temp. of : Temp. head >: in degrees: lbs. per : feed water : in degrees : Fahr. : sq-e inch : in degrees :; Fahr. ; : : Fahnr. 12.15 135 155 184 158 12.30 135 150 186 158 12.45 136 150 186 160 1.00 136 150 186 158 1.15 135 152 184 158 1.30 134 150 184 158 1.45 133 150 182 157 2200 133 150 182 158 215 134 152 183 158 2-30 136 150 182 158 2.45. 135 152 184 158 3-00 134 150 180 156 3-15 134 152 178 155 3-30 136 150 178 153 3.45 134 150 182 155 4.00 136 155 184 156 4.15 136 150 184 158 Test Wo. le. May 7, 1913. Location - Poland Paper Co., Mechanic Falls, We. Conditions - (1) Connection made to pipe conveying water from heaters to boilers. (2) Continuation of Test No. ll. 1 2 3 4 5 Periods : Temp. air : Pressure : Temp. of : Temp. head : in degrees: lbs. per : feed water ;: in degrees : Fahr. :;: sqe inch : in degrees : Fahr. : : : Fahr. 7.15 135 132 170 150 7230 133 152 184 155 7.45 134 155 190 158 8.00 133 155 192 159 8.15 132 150 191 158 8.30 130 153 190 157 8.45 130 150 188 155 9.00 130 145 184 148 9.15 124 155 184 148 9.30 127 150 185 155 9.45 130 155 186 150 10.00 120 150 186 150 10.15 126 155 188 152 10.30 128 150 189 154 10.45 123 150 188 153 11.00 125 155 187 152 11.15 127 148 189 155 11.30 128 152 188 154 11.45 123 155 180 148 12.00 123 152 178 147 Continued -- Test No. 12 Continued. May 7, 1913. Location - Poland Paper Co., Mechanic Falls, le. Conditions - (1) Connection made to Pipe conveying water from heaters to boilers. (2) Continuation of Test Noe ll. Periods : Temp. air Pressure : Temp. of : Temp. head : in degrees: lbs. per : feed water : in degrees Fahr. : 8qe inch : in degrees :; Fanhr. Fahr. 12.15 125 152 175 | 148 12.30 126 140 178 149 12.45 | 128 150 178 150 1-00 126 138 180 150 1.15 128 150 184 156 1-30 134 155 190 158 1.45 135 150 192 ' 159 2-60 130 148 199 160 2215 1230 150 201 167 2 30 135 145 201 164 2245 136 142 201 167 3-00 136 145 200 167 i) 136 145 196 166 3-30 136 155 192 165 3-45 136 155 187 162 4.00 143 155 184 158 4.15 135 145 185 159 ALL ppp phe Lip f, g SLL, fy L/L LY YY yy yep ht) J CAA J / ae, LPL) PPh p, py ppp pt. $ THE GRINNELL UTOMATIC _SPRINHLER. oR NLCELLING. GLASS OMIVYOVIPAGN SPRINKLER FEED MAIN. mr | 7] PLATE IL Nv PUMP o SPRINKLER HEAD, THERMOMETER S~ is / a y) ‘< » oR Fs Lf \ ) 3” DIA — $ HERMOMETER . ( above) WELL (above) WAY GLOBE VALVE . ( belout) Tes FN fi, GATE VALVE CEA) {i ; Was Ip Vy Z Le - C j ea PRESSURE Gf? : a a ee WY THERMOMETER = 7) i —7—L_——S=== Fe aelmalaaladl Trl calisrahesioetieelealasalaaal a a oo THERMOMETER. ELEVATION. S7VELEL PIN FLAT E aM ~ are a se = ‘ = Cine ran i: es ; Oo pew ey aber ee ee . 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