GE P&W Spiral Wound Membranes - SG Series - Manual

Fact Sheet
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AM-FSpwSGSeries_EN.doc Nov-13
SG Series
Industrial Brackish Water RO Elements
The S-Series family of proprietary thin-film reverse
osmosis membrane elements is characterized by
high sodium chloride rejection and a smooth, foul-
ing-resistant membrane surface.
SG Brackish Water Elements are used for brackish
water desalination and process stream concentra-
tion.
The SG elements feature either a patented cage or
fiberglass outer wrap and 30mil or 50mil spacer.
Table 1: Element Specification
Membrane S-Series, Thin-film membrane (TFM*)
Model Average
permeate flow
gpd (m
3 /day) 1,2
Average NaCl
rejection 1,2
Minimum
NaCl
rejection 1,2
SG2540F30 590 (2.2) 98.5% 97%
SG2540F50 370 (1.4) 98.5% 97%
SG4040C30 2,200 (8.3) 98.5% 97%
SG8040F30 8,400 (31.8) 98.5% 97%
1 Average salt rejection after 24 hours operation.
Individual flow rate may vary ±25%.
2 Testing conditions: 2,000ppm NaCl solution at 225psi (1,551kPa) operating pres-
sure, 77°F (25°C), pH 6.5 and 15% recovery.
Model Spacer
mil (mm)
Active area
ft 2 (m 2 )
Outer wrap Part
number
SG2540F30 30 (0.76) 27 (2.5) Fiberglass 1207546
SG2540F50 50 (1.27) 17 (1.6) Fiberglass 1207547
SG4040C30 30 (0.76) 100 (9.3) Cage 1207577
SG8040F30 30 (0.76) 380 (35.3) Fiberglass 1207614
Figure 1a: Element Dimensions Diagram (Female)
Table 2: Dimensions and Weight
Model 1
Dimensions, inches (cm) Boxed
A B 2 C 3
Weight
lbs (kg)
SG2540F30
40.0
(101.6)
0.75
(1.90) OD
2.4
(6.1)
4
(1.8)
SG2540F50
40.0
(101.6)
0.75
(1.90) OD
2.4
(6.1)
4
(1.8)
SG4040F50
40.0
(101.6)
0.625
(1.59)
3.9
(9.9)
9
(4.1)
SG4040C30
40.0
(101.6)
0.625
(1.59)
3.9
(9.9)
9
(4.1)
SG8040F30
40.0
(101.6)
1.125
(2.86)
7.9
(20.1)
29
(13.2)
1 These elements are dried then bagged before shipping.
2 Internal diameter unless specified OD (outside diameter).
3 The element diameter (dimension C) is designed for optimum performance in GE
pressure vessels. Other pressure vessel dimension and tolerance may result in
excessive bypass and loss of capacity
Table 3: Operating and CIP Parameters
Typical Operating Flux 5 – 20 GFD (8 – 34 LMH)
Maximum Operating Pressure 600psi (4,137kPa) if T < 95°F (35°C)
435psi (3,000kPa) if T > 95°F (35°C)
Maximum Temperature Continuous Operation: 122°F (50°C)
Clean-In-Place (CIP): 122°F (50°C)
pH Range Optimum Rejection: 5.5-7.0,
Continuous Operation: 2.0-10.0,
Clean-In-Place (CIP): 1.0-10.5
Maximum Pressure Drop Over an element 15psi (103kPa)
per housing: 60psi (414kPa)
Chlorine Tolerance 500+ ppm hours,
dechlorination recommended
Feedwater NTU < 1
SDI < 5