GE P&W Polisher RO User Manual

Fact Sheet

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FSsmPolisherRO_EN.doc Sep-13

Membrane

A-Series, Thin Film Membrane (TFM*)

Model

Spacer

mil (mm)

Active area

ft2 (m2)

Part

number

POLISHER RO8040C30

30 (0.76)

404 (37.5)

1206650

Model1

Dimensions, inches (cm)

Boxed

A

B2

C

Weight
lbs (kg)

POLISHER RO8040C30

40.00

(101.6)

1.125
(2.86)

7.913

(20.1)

29

(13.2)

Typical Operating Pressure

200-500psi (1,379-3,447kPa)

Typical Operating Flux

15-20 GFD (25-34 LMH)

Maximum Operating Pressure

600psi (4,137kPa)

Maximum Permeate Pressure2

60 psi (413 kPa)

Maximum Temperature

122°F (50°C)

pH Range

2.0-11.0

Recommended Pressure Drop

Over an element: 12psi (83kPa)

Maximum Pressure Drop

Over an element: 15psi (103kPa)
Per housing: 60psi (414kPa)

Chlorine Tolerance

1000ppm-hours
dechlorination recommended

Temperature

‘pH minimum

‘pH maximum

50°C (122°F)

2.0

11.5

45°C (113°F)

1.5

11.5

35°C (95°F)

1.5

11.5

25°C (77°F)

1.0

12.0

Polisher RO

Permeate & Condensate Polishing

The Polisher RO family of proprietary thin film re­verse osmosis membrane elements is characterized
by high flux and excellent sodium chloride rejection.
The membrane has an average rejection of 99.5%
on 2,000ppm NaCl at 25°C (77°F) and 225psi oper­ating pressure.

The Polisher RO elements provide high rejection of
dissolved solids and low molecular weight organic
constituents at operating pressures up to 600psi.
Typically used in food-related processing that re­quires stringent sanitary procedures, the RO Polish­er is used to treat evaporator condensate (cow
water) and RO/NF permeate in order to recover
process water for the plant.

The Polisher RO element features a Durasan* Cage
patented outer wrap, standard feed spacer and
polysulfone parts.

Table 1: Element Specification

Table 2: Dimensions and Weight

1

These elements are dried and bagged before shipping.

2

Internal diameter.

3

The element diameter (dimension C) is designed for optimum performance in GE
pressure vessels. Others pressure vessel dimension and tolerance may result in
excessive bypass and loss of capacity.

Table 3: Operating parameters

Figure 1: Element Dimensions Diagram

1

Clean water flux (CWF) is the rate of water permeability through the membrane
after cleaning (CIP) at reproducible temperature and pressure. It is important to
monitor CWF after each cleaning cycle to determine if the system is being
cleaned effectively. CWF can vary ±25%.

2

Permeate pressure should never exceed the concentrate pressure.

Table 4: CIP limits for RO elements