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

Fact Sheet
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FSpsMapleSeries_EN.doc Sep-13
Maple Series
Industrial – Maple Syrup Processing Elements
The D-Series family of proprietary thin-film
nanofiltration membrane elements is characterized
by an approximate molecular weight cut-off of 150-
300 Dalton for uncharged organic molecules.
Divalent and multivalent ions are preferentially
rejected by the membrane while monovalent ions
rejection is dependent upon feed concentration and
composition. Since monovalent ions pass through
the membrane, they do not contribute to the
osmotic
pressure, thus enabling D-Series
nanofiltration membrane systems to operate at feed
pressures below those of RO systems.
D-Series membrane has an average rejection of
96% on 2000 ppm MgSO
4
at 25 o C and at 110 psi
operating pressure.
The Maple Series is specifically designed for maple
syrup processing. It features a fiberglass outerwrap
and standard feed spacers.
Table 1: Element Specification
Membrane D-Series, Thin-Film Membrane (TFM*)
Model
Spacer
mil (mm)
Active area
ft 2 (m 2 )
Outer wrap
Part
number
Maple 4040 30 (0.76) 88 (8.2) Fiberglass 1206965
Maple 8040 30 (0.76 390 (36.2) Fiberglass 1207006
Figure 1: Element Dimensions Diagram - Female
Table 2: Dimensions and Weight
Model 1
Dimensions, inches (cm) Boxed
A B 2 C 3
Weight
lbs (kg)
Maple 4040
40.0
(101.6)
0.625
(1.59)
3.9
(9.9)
9
(4.1)
Maple 8040
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 Water & Process Technologies 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)
Maximum Temperature Continuous Operation: 122°F (50°C)
Clean-In-Place (CIP): 104°F (40°C)
‘ pH Range Continuous Operation: 3-9
Clean-In-Place (CIP): 2-10.5
Maximum Pressure Drop Over an element: 15psi (103kPa)
Per housing: 60psi (414kPa)
Chlorine Tolerance 500 ppm hours,
dechlorination recommended