Lenntech
Fact Sheet
info@lenntech.com Tel. +31-152-610-900
www.lenntech.com Fax. +31-152-616-289
PRO RO HR Series
High Rejection Brackish Water RO Elements
The PRO RO HR series membrane elements are the
solution for a broad range of water purification that
offer a choice of excellent rejection and high permeate flow products. They all use a proprietary
polyamide thin film membrane that offers a high
salt rejection with operating pressures as low as
150psi. These elements are recommended for
brackish water with salt concentration (TDS) levels
between 1,000 and 10,000mg/l or when very high
salt rejection is required.
PRO RO HR high rejection brackish water elements
feature a Fiberglass outer wrap and female end
connections.
Table 2: Dimensions and Weight
1This
Thin-film membrane (TFM*)
Boxed
Dimensions, inches (cm)
Model1
PRO-RO-HR-WT
Table 1: Element Specification
Membrane
Figure 1: Element Dimensions Diagram
A
B2
C
Weight
lbs (kg)
40.0
(101.6)
1.125
(2.86)
7.9
(20.1)
35
(16)
product ships wet.
diameter unless specified OD (outside diameter).
2Internal
Table 3: Operating and CIP parameters
Model
Flow average
gpd (m3/day)
Salt rejection
average
(NaCl)1,2
Salt rejection
minimum
(NaCl)1,2
Typical Operating Pressure
200 psig (1,380 kPa)
PRO-RO-365-HR-WT
9,500 (36.0)
99.7%
99.2%
Typical Operating Flux
10-20GFD (15-35LMH)
PRO-RO-400-HR-WT
10,200 (38.6)
99.7%
99.2%
Maximum Pressure
600 psig (4,137 kPa)
PRO-RO-430-HR-WT
11,000 (41.6)
99.7%
99.2%
Maximum Temperature
Operating: 122°F (50°C)
Cleaning: 122°F (50°C)
Recommended pH
Optimum rejection pH: 7.0-7.5,
Operating Range pH: 4.0-11.0,
Cleaning Range pH: 2.0-11.5
Recommended Pressure Drop
Over an element: 12 psig (83 kPa)
Per housing: 50 psig (345 kPa)
Average salt rejection after 24 hours operation. Individual flow rate may vary
+25%/-15%.
2 Testing conditions: 2,000ppm NaCl solution at 225psig (1,550kPa) operating
pressure, 77°F, pH7 and 15% recovery.
1
Active Area
ft2 (m2)
Outer wrap
Part
Number
Chlorine Tolerance
1,000+ ppm-hours,
dechlorination recommended
PRO-RO-365-HR-WT
365 (33.9)
Fiberglass
1262701
Feedwater
PRO-RO-400-HR-WT
400 (37.2)
Fiberglass
3006198
NTU < 1
SDI < 5
PRO-RO-430-HR-WT
430 (39.9)
Fiberglass
3021590
Model