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DuPont DOW UF Membrane IP-77

Product No.：IP-77
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Features

The DuPont™ DOW™ ultrafiltration modules IP-77 are made from high strength, hollow fiber membranes engineered to reduce design and fabrication requirements with features and benefits including:

0.03 micronporesize for removal of bacteria, viruses and particulates, a 6 log removal of bacteria, a 2.5 log removal on viruses, and a <2.5 SDI guarantee with proper operation
PVDF fibers which offer strength, chemical and fouling resistance; which allows for extended membrane life and consistent long-term performance
Outside-in flow configuration allows higher TSS feed waters, while maintaining reliable system performance and high quality filtrate
Innovative end-caps enable direct coupling of modules, eliminating the need for piping manifolds

These modules are an ideal choice for systems requiring a small footprint. The IP-77 modules offer a high effective membrane area, which contributes to a more economical membrane system design.

DuPont DOW ultrafiltration modules IP-77 can be used for a wide variety of treatment applications, such as groundwater, surface water, seawater, industrial and municipal wastewaters.

DuPont DOW UF Membrane IP-77 Product Data Sheet

Product Specifications

Membrane area

Weight

(empty/water filled)

Hold-Up Volume

Model

Type

m²

ft²

lbs

liters

gallons

IP-77

Industrial

829

66/119

146/262

Figure 1

Figure 2

Dimensions

Length

Diameter

Width

Units

L

L1

L2

L3

D

W1

W2

SI (mm)

2488

2000

2189

2364

225

360

342

US (inch)

98.0

78.7

86.2

91.3

8.9

14.2

13.5

Operating Parameters

	SI units	US units
Filtrate Flux @ 25ºC	40-90 l/m²/ hr	24-53 gfd
Flow range	2.0-6.9 m³/hr	8.8 – 30.4 gpm
Temperature	1-40ºC	34-104º F
Max. inlet module pressure (@ 20ºC)	6.25 bar	90.65 psi
Max. inlet module pressure (@ 40ºC)	4.75 bar	68.89 psi
Max Operating TMP	2.1 bar	30.5 psi
Max Operating Air Scour Flow	12 Nm3/hr	7.1 scfm
Max Backwash Pressure	2.5 bar
Operating pH	2 - 11
NaOCI (max.)	2,000 mg/L
Particle size (max.)	300 µm
Flow configuration	Outside in
Expected filtrate turbidity	≤0.1 NTU
Expected filtrate SDI	≤2.5

Important information

Proper start-up of an ultrafiltration system is essential to prepare the membranes for operating service and to prevent membrane damage. Following the proper start-up sequence also helps ensure that system operating parameters conform to design specifications so that system water quality and productivity goals can be achieved. Before initiating system start-up procedures, membrane pretreatment, installation of the membrane modules, instrument calibration and other system checks should be completed. Please refer to the Ultrafiltration Technical Manual.

Operation guidelines

Avoid any abrupt pressure variations during start-up, shutdown, cleaning or other sequences to prevent possible membrane damage. Flush the ultrafiltration system to remove shipping solution prior to start-up. Remove residual air from the system prior to start-up. Manually start the equipment. Depending on the application, filtrate obtained from initial operations should be discarded. Please refer to the Ultrafiltration Technical Manual.

General information

If operating limits and guidelines given in this bulletin are not strictly followed, the limited warranty will be null and void.
To control biological growth during extended system shutdowns, it is recommended that storage solution be injected into the membrane modules.

Regulatory note

NSF/ANSI 61and 419 certified drinking water modules require specific conditioning procedures prior to producing potable water. Please refer to the Ultrafiltration Technical Manual (Form No. 45-D00874-en) flushing section for specific procedures. Drinking water modules may be subjected to additional regulatory restrictions in some countries. Please check local regulatory guidelines and application status before use and sales.

Version: Form No.45-D01162-en, Rev. 5

Notice:
If your customer insists existing brand, please contact DuPont or its distributors.
If you and your customer accept economical & quick-delivery equivalent of similar or better performance with same warranty, kindly send us an inquiry now.

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