SpectraPure
SpectraPure®Inc.
480.894.5437 Call us toll-free 1.800.685.2783
2167 East Fifth St, Tempe, Arizona 85281
®
4
SYSTEM SPECIFICATIONS
Sediment Pre-Filter
0.5 micron MicroTec™ sediment pre-filter
Carbon Filter
0.5 micron carbon block pre-filter
RO Membrane Type
Thin-Film Composite (TFC)
DI
Cartridges
M
AX
C
AP
DI ™
SilicaBuster™
DI
Rejection Rate
Greater than 98% average
Input Water Pressure
60 psi (4.15 bar) line pressure*
Input Water Temp
77°F (25°C)
Recovery Rate
20% (i.e. 20% of the water will be
collected
as
pure
water)
Nominal Membrane Flow Rates @ 60 psi & 77° F :
GPD (lpd)
Product Water Flow Rate
Concentrate Flow Rate
90 (340)
235ml/min
940 ml/min
150 (340)
235ml/min
940 ml/min
300 (680)
470ml/min
1880 ml/min
Reverse Osmosis Membrane Feed Water Requirements
For the 1 year SpectraSelect TFC membrane pro-rated warranty to be honored, the
following conditions must be met:
Operating Pressure*
40 – 80 psi (2.75 – 5.5 bar)
pH
Range 3
–
11
Maximum Temperature
100° F (38° C)
Maximum
Turbidity 1.0
NTU
Maximum Silt Density Index
5.0 (based on 15 min. test time)
Maximum Chlorine
less than 0.1 ppm
Maximum
TDS 2000
ppm
Maximum Hardness
10 grains (170 ppm as CaCO3)
Maximum
Iron less
than
0.1
ppm
Maximum Manganese
less than 0.1 ppm
Maximum Hydrogen Sulfide
0 ppm
Langlier Saturation Index
LSI must be negative
*Operating pressure less than 40 psi will require a booster pump:
less than 49 GPD use BPLF-MO-115(-230),
more than 49 GPD use BPHF-MO-115(-230).
*Operating pressure greater than 80 psi will require a pressure reducing valve.
SpectraPure®Inc
.
Fax 480.894.6109 Fax us toll-free 1.877.527.7873
E-mail: spectra@spectrapure.com Visit us on the web www.spectrapure.com
21
SpectraPure
®
TESTING THE PERFORMANCE OF THE MEMBRANE
Membrane Output Calculation
Membranes produce the rated gallons per day (GPD) at 60 psi (4.1 bars) operat-
ing pressure, 77°F (25°C) operating temperature and 500 ppm total dissolved
solids.
Membrane output gallons per day (GPD) depends on operating pressure, water
temperature and the ppm TDS in the feed water.
Expected GPD = Rated GPD × PCF × TCF
PCF
is the pressure correction factor
TCF
is the temperature correction factor
Calculation of Pressure Correction Factor (PCF):
The output (GPD) from
the membrane is directly proportional to the applied pressure.
Note: The membrane is rated to produce the rated GPD at 60 psi. For any pres-
sure other than 60 psi the output GPD is multipled by the PCF.
PCF = Line Pressure (in psi) ÷ 60
Calculation of Temperature Correction Factor (TCF):
The output (GPD)
also decreases with decrease in temperature. This is because water viscosity
increases with decrease in water temperature.
Temperature Correction Factor Table (TCF)
°F
/°C TCF
°F
\°C TCF
°F
\°C TCF
41.0 /5
0.521
59.0 /15
0.730
77.0 /25
1.000
42.8 /6
0.540
60.8 /16
0.754
78.8 /26
1.031
44.6 /7
0.560
62.6 /17
0.779
80.6 /27
1.063
46.4 /8
0.578
64.4 /18
0.804
82.4 /28
1.094
48.2 /9
0.598
66.2 /19
0.830
84.2 /29
1.127
50.0 /10
0.620
68.0 /20
0.857
86.0 /30
1.161
51.8 /11
0.640
69.8 /21
0.884
87.8 /31
1.196
53.6 /12
0.661
71.6 /22
0.912
89.6 /32
1.232
55.4 /13
0.684
73.4 /23
0.941
91.4 /33
1.267
57.2/14
0.707 75.2
/24
0.970 93.2
/34
1.304
