DEFO Catalogue-IN.qxd - Crystal Fountains
DEFO Catalogue-IN.qxd - Crystal Fountains
DEFO Catalogue-IN.qxd - Crystal Fountains
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96<br />
Engineering Data and Conversion Factors<br />
Quick Conversion Factors<br />
Convert From<br />
Flow<br />
Multiply By Convert Into<br />
USGPM .0631 Litres/second<br />
USGPM 3.785 Litres/minute<br />
USGPM 227.3 Litres/hour<br />
Litres/sec. 15.85 USGPM<br />
Litres/min. .264 USGPM<br />
Litres/hour .0044 USGPM<br />
Cu Ft./sec. 448.83 USGPM<br />
Cu M/min.<br />
Pressure<br />
264.2 USGPM<br />
PSI 6.895 KPA<br />
PSI 2.310 Ft. Head<br />
KPA .145 PSI<br />
KPA .334 Ft. Head<br />
Ft. Head 2.990 KPA<br />
Ft. Head 0.433 PSI<br />
Ft. Head 0.305 Metric Head<br />
Ft. Head<br />
Volume<br />
3.280 Ft. Head<br />
U.S Gals. 231.0 Cu. In.<br />
U.S Gals. .1337 Cu. Ft.<br />
U.S Gals. 3.785 Litres<br />
U.S Gals. .0038 Cu. Metres<br />
Litres .2642 U.S. Gals.<br />
Litres .0353 Cu. Ft.<br />
Cu. Metres 35.311 Cu. Ft.<br />
Cu. Metres 264.2 U.S. Gals.<br />
Cu. Ft. 7.48 U.S. Gals.<br />
Cu. Ft. 28.329 Litres<br />
Cu. Ft.<br />
Weight<br />
0.028 Cu. Metres<br />
U.S Gals. 8.35 Lbs.<br />
Litres 2.2 Lbs.<br />
Cu. Ft. Of Water 62.46 Lbs.<br />
Cu. M.Water<br />
Length<br />
22.06 Lbs.<br />
Inches 2.54 Centimeters<br />
Feet .3048 Metres<br />
Metres 39.37 Inches<br />
Metres<br />
Horsepower<br />
3.28 Feet<br />
HP .746 Kilowatts<br />
HP 745.7 Watts<br />
Kilowatts<br />
U.S. Pump Charts<br />
1.34 HP<br />
GPM (60 cy) .80 GPM (50 cy)<br />
Head (60 cy) .60 GPM (50 cy)<br />
Pipe Flow Guide<br />
Pipe sizes and capacities are those recommended<br />
as good practice for fluid velocities on hydronic<br />
applications.<br />
pipe flow pipe flow<br />
size lpm size lpm<br />
40 mm 38 - 95 125 mm 757 - 1892<br />
50 mm 76 - 189 150 mm 1249 - 3028<br />
75 mm 208 - 511 200 mm 2649 - 4920<br />
100 mm 435 - 1041 250 mm 4731 - 6624<br />
Waterfall Requirements<br />
(per lineal metre)<br />
spill lpm maximum<br />
thickness fall height<br />
2.5 mm 62 0.30 m<br />
5.0 mm 125 1.00 m<br />
7.5 mm 187 1.25 m<br />
10.0 mm 250 1.50 m<br />
12.5 mm 312 1.75 m<br />
15.0 mm 374 2.00 m<br />
17.5 mm 436 2.25 m<br />
20.0 mm 498 2.50 m<br />
22.5 mm 558 2.75 m<br />
25.0 mm 620 3.00 m<br />
Example: To determine the lpm requirements<br />
for a 3 metre long waterfall with a<br />
1metre fall height and a 7.5 mm spill<br />
thickness, multiply 3 x 187 = 561 lpm.<br />
Note: Turbulent water may require greater flow.<br />
Lower pool should be approximately two<br />
times larger than upper pool to handle<br />
start-up and shut-down variables.