Gillette Generators SP-1500 - Manual (Page 20)

PAGE 20
Cu. Ft., under column 11-20 Ft. runs = 470 Cu. Ft. Locate the required pipe diameter at left side of Table C = 1”
Dia.
TABLE A: ENGINE HORSEPOWER VERSUS FUEL CONSUMPTION, AT 100% LOAD
NOTE: LPV = 2500 BTU x FT. 3 /HR = Total BTU/HR NATURAL GAS = 1000 BTU X FT. 3 /HR = Total BTU/HR
LPV CONVERSION: 8.50 FT. 3 = 1 LB; 36.4 FT. 3 = 1 GALLON
CUBIC FEET PER HOUR X 0.0283 = CUBIC METER PER HOUR
* Same engine HP is used more than once. Fuel consumption is reduced for the less (HP) demand.
TABLE B: LPV (PROPANE) LOW PRESSURE/6 OZ GAS PIPE SIZING
Minimum pipe capacity in cubic feet or gas per hour for a gas pressure drop of no more that 0.5 inches water
column. Eleven (11) inches water column (6 oz gas pressure) must be present at engine fuel inlet. Consult your
local Gas Company for dry fuel pipe that run over 125 feet.
TABLE C: NATURAL GAS PIPE SIZING
Minimum pipe capacity in cubic feet or gas per hour for a gas pressure drop of no more that 0.5 inches water
column. Seven (7) inches water column (4 oz gas pressure) must be present at engine fuel inlet. Consult your
local Gas Company for dry fuel pipe that run over 125 feet.
1800 RPM ENGINES
ENGINE HP FOR LPV FUEL 48 * 48 * 48 * 65 105 105 162 * 162 * 163 220
LPV GAS FUEL (CU. FT./HR) 155 168 203 237 286 345 490 595 875 1210
LPV GAS FUEL (CU. M./HR) 4.4 4.8 5.8 6.7 8.07 9.8 13.9 16.8 24.7 34.3
ENGINE HP FOR NATURAL GAS FUEL 42 * 42 * 42 * 59 95 95 138 * 138 * 184 228
NATURAL GAS FUEL (CU. FT./HR) 387 431 539 554 685 807 1115 1275 1750 2420
NATURAL GAS FUEL (CU. M./HR) 10.9 12.2 15.3 15.7 19.4 22.8 31.6 36.1 49.5 68.5
GEN-SET KW 20 25 30 41 52 62 80 100 125 140
PIPE LENGTH
IN FEET
0-10 11-20 21-30 31-40 41-50 51-60 61-70 71-80 81-90 91-100 101-115 116-125
PIPE DIA. I
N
INCHES
½” 110 76 61 - - - - - - - - -
¾” 227 157 126 107 95 87 78 74 69 65 - -
1” 428 293 236 201 179 164 151 138 129 123 110 101
1 ¼” 807 523 445 379 338 309 285 255 242 232 208 191
1 ½” 1523 987 840 715 638 583 538 481 457 438 393 360
1 ¾” 2874 1862 1585 1349 1204 1100 1015 908 862 826 742 679
ENG. FUEL
CONSUMED IN CU.
FT
PIPE LENGTH
IN FEET
0-10 11-20 21-30 31-40 41-50 51-60 61-70 71-80 81-90 91-100 101-115 116-125
PIPE DIA. I
N
INCHES
½” 174 119 96 82 73 66 61 56 53 50 44 40
¾” 636 249 200 171 152 138 127 118 111 104 93 84
1” 684 470 377 323 286 259 239 222 208 197 174 158
1 ¼” 1404 965 775 663 588 532 490 456 428 404 358 324
1 ½” 2103 1445 1161 993 880 798 734 683 641 605 536 486
2” 4050 2784 2235 1913 1696 1536 1413 1315 1234 1165 1033 936
ENG. FUEL
CONSUMED
IN CU. FT
2 ½” 6455 4437 3563 3049 2703 2449 2253 2096 1966 1857 1646 1492