|
Membrane type |
Hollow Fibre Ultrafiltration (UF) |
|
Membrane material |
PVDF (Polyvinylidene Fluoride) |
|
Pore size |
0.03 micron |
|
Fibre ID / OD |
0.7 mm / 1.3 mm |
|
Flow configuration |
Outside-In |
|
Removes |
Suspended solids, colloids, bacteria, viruses, turbidity |
|
Typical applications |
Industrial pre-treatment (ahead of RO), municipal water treatment, surface water clarification, seawater pre-treatment |
|
Chemical resistance |
High — suitable for chlorine-based cleaning (CIP) |
|
Warranty |
1 Year |
|
Replacement window |
10 days |
Product Overview
Large-scale industrial and municipal water treatment plants need a filtration stage that can strip out suspended solids, bacteria, viruses, and turbidity before water reaches an RO membrane or a distribution line — and do it continuously, at high volume, without constant intervention. This UF Membrane — the IntegraTec™ XP 77 IG (Dow/DuPont) — is a hollow fibre PVDF ultrafiltration membrane built for exactly that role, rated to a 0.03 micron pore size with an outside-in flow configuration and high chemical resistance for chlorine-based CIP (clean-in-place) cleaning. It's the higher-throughput sibling in Pearl Water's IntegraTec™ UF range, sized for larger industrial pre-treatment systems, municipal water treatment, surface water clarification, and seawater pre-treatment applications where volume and consistent fouling resistance both matter. If you're specifying UF pretreatment ahead of an RO system, or need standalone clarification and microbiological filtration at scale, this is a purpose-built element for that job.
What Is a UF Membrane, and Why Does the XP 77 IG Matter for RO Systems?
Ultrafiltration (UF) is a low-pressure, membrane-based filtration technology that removes suspended solids, colloids, bacteria, and viruses while allowing dissolved salts and minerals to pass through — unlike reverse osmosis (RO), which operates at much higher pressure and rejects dissolved solids as well. This is exactly why UF membranes like the XP 77 IG are so commonly installed as a pretreatment stage ahead of RO: they remove the particulate and biological load that would otherwise foul an RO membrane's much finer pores, extending the RO stage's working life and reducing cleaning frequency downstream. Pearl Water's guide on the role of RO membranes in water purification covers how UF and RO typically work together across a full treatment train.
What Is the UF Membrane – IntegraTec™ XP 77 IG?
The XP 77 IG is a hollow fibre ultrafiltration element built from PVDF (Polyvinylidene Fluoride), a membrane material chosen specifically for its chemical resistance and ability to withstand repeated cleaning cycles without degrading. Its fibre is rated with an inner diameter of 0.7 mm and outer diameter of 1.3 mm, and the element uses an outside-in flow configuration — meaning feed water flows from outside each hollow fibre inward, with filtrate collected from the fibre's interior.
At a 0.03 micron pore size, the membrane is fine enough to physically block suspended solids, colloidal material, bacteria, and viruses, while still allowing water to pass through at commercially viable flow rates. Its high chemical resistance supports chlorine-based CIP cleaning protocols, which matters directly for plants running continuous duty cycles where periodic chemical cleaning — rather than membrane replacement — is the practical way to manage fouling over the membrane's service life.
This is technically part of the same IntegraTec™ product family as the XP 51 IP IG, and the two share the same core PVDF fibre technology. Historically manufactured under the Dow Water & Process Solutions brand and now part of DuPont Water Solutions following DuPont's acquisition of that business, the IntegraTec™ line is sold under both names depending on the sourcing and documentation — Pearl Water stocks this membrane regardless of which brand label appears on the box, with identical specifications.
Installation and Maintenance Notes
Commissioning should include an initial integrity check before the system is brought into regular service, confirming filtrate quality matches expected performance.
CIP cleaning cycles should be scheduled based on your feed water's fouling characteristics — heavier turbidity or organic load typically requires more frequent chlorine-based cleaning within the membrane's rated chemical tolerance.
Flow configuration awareness matters during setup — since this is an outside-in design, correct orientation during installation directly affects filtration performance.
Periodic performance monitoring — tracking permeate flow rate and pressure differential over time helps identify when a cleaning cycle is due, before fouling significantly impacts output.
Installation on skid-mounted or multi-element industrial systems is generally best handled by a qualified water treatment engineer to ensure correct alignment, sealing, and system balancing.
Related Products
For containerized or height-restricted installations, compare the XP 51 IP IG UF Membrane, or the Toray HFU-2020AN Ultrafiltration Membrane as an alternative brand option. If you're specifying the downstream RO stage this UF membrane will feed, browse Dow RO Membranes including the 8040 DOW RO Membrane - BW30-365, the DOW RO Membrane BW30-400 (8040), the Dow RO Membrane BW30 PRO (4040), or the 4040 Dow RO Membrane – TapTec LC HF. For a complete plant setup, explore Industrial RO Plants, Industrial Membrane Housings, or Industrial RO Spares for pre-treatment and system components.
High-Throughput Filtration Built for Demanding Systems
When a plant needs dependable microbiological and particulate filtration at scale — whether as RO pretreatment, municipal clarification, or seawater pre-treatment — this UF Membrane, the IntegraTec™ XP 77 IG, delivers proven PVDF fibre technology with the throughput and chemical resilience larger industrial systems require. Order it today and protect your downstream treatment stages with a UF element built for continuous, demanding operation.
|
Membrane type |
Hollow Fibre Ultrafiltration (UF) |
|
Membrane material |
PVDF (Polyvinylidene Fluoride) |
|
Pore size |
0.03 micron |
|
Fibre ID / OD |
0.7 mm / 1.3 mm |
|
Flow configuration |
Outside-In |
|
Removes |
Suspended solids, colloids, bacteria, viruses, turbidity |
|
Typical applications |
Industrial pre-treatment (ahead of RO), municipal water treatment, surface water clarification, seawater pre-treatment |
|
Chemical resistance |
High — suitable for chlorine-based cleaning (CIP) |
|
Warranty |
1 Year |
|
Replacement window |
10 days |
| Customer Rating | |
| Price |
₹168,500
|
| Availability |
5 in stock
|
Why Choose Pearl Water for Industrial UF Membranes?
Specifying UF membranes for a municipal or industrial plant means working from real, verifiable specifications — pore size, fibre material, flow configuration, chemical resistance — rather than generic performance claims. Pearl Water publishes the complete technical specification for the XP 77 IG and backs it with a 1-year warranty and 10-day replacement window, along with tiered volume pricing for multi-unit orders.
Pearl Water has supplied industrial RO plants and matched pretreatment components across India, and stocks the XP 51 IP IG as a companion option for space-constrained installations, along with the Toray HFU-2020AN Ultrafiltration Membrane for plants standardized on a different brand. For a broader look at how leading manufacturers compare, see Pearl Water's guide to top industrial RO membrane brands in India.
Buying Guide: Specifying the Right UF Membrane
Confirm your plant's throughput requirement. The XP 77 IG's higher per-element flow capacity generally means fewer total modules for a given system size compared to smaller-capacity elements.
Check for space or height constraints. If your installation is containerized or height-restricted, compare against the XP 51 IP IG's shorter module design before committing to this standard-length element.
Match your feed water profile to the flow configuration. The outside-in design here is well suited to feed water with higher or more variable turbidity, a common condition in surface water and seawater pre-treatment applications.
Plan your cleaning protocol around chlorine-based CIP. High chemical resistance supports this cleaning method specifically — confirm your plant's existing CIP setup is compatible before installation.
Think about downstream protection. If this UF membrane feeds into an RO stage, Pearl Water's guide on choosing between 8040 and 4040 RO membranes is a useful next step for specifying that stage correctly.
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What does the XP 77 IG membrane remove from water? It removes suspended solids, colloids, bacteria, viruses, and turbidity-causing particles down to 0.03 micron, making it effective as a pre-treatment stage before RO or as standalone filtration for surface and municipal water.
What's the difference between the XP 77 IG and XP 51 IP IG? Both use the same PVDF hollow-fibre UF technology and target the same contaminants. They differ mainly in module design and best-fit use case — the XP 77 IG is a standard-length module suited to larger industrial systems, while the XP 51 IP IG uses a shorter, height-restricted design for containerized installations. Confirm exact flow-rate figures for your specific system size with Pearl Water's technical team before finalizing a spec.
Can this membrane be used ahead of an RO system? Yes — UF pre-treatment is a common configuration to protect RO membranes from fouling by removing suspended solids and microorganisms before water reaches the RO stage.
What water sources is it suitable for? Surface water, municipal water supply, industrial process water, and seawater pre-treatment, based on its outside-in flow configuration and high chemical resistance.
Does it require special cleaning? Like most PVDF hollow-fibre membranes, it supports chemical cleaning-in-place (CIP), typically using chlorine-based solutions, to maintain flow performance over its service life.
What's the pore size of this membrane, and what does that mean practically? 0.03 micron — fine enough to physically block bacteria and viruses in addition to suspended solids and colloidal material, which is why UF at this pore size is considered effective for microbiological safety, not just clarity.
Is this membrane the same as a Dow membrane, or a DuPont membrane? Both, effectively. The IntegraTec™ line was originally part of Dow Water & Process Solutions and is now marketed under DuPont Water Solutions following DuPont's acquisition of that business — the specification and performance are unaffected by which brand name appears on the packaging.
What's the difference between outside-in and inside-out flow configuration? In an outside-in design like this one, feed water flows from the outside of each hollow fibre inward, with filtrate collected from the fibre's interior — a configuration generally well suited to higher-turbidity feed water, compared to inside-out designs used in some other UF membranes.
How does chemical resistance affect the membrane's service life? Higher chemical resistance means the membrane can undergo more frequent or more aggressive chlorine-based cleaning cycles without degrading, which extends how long it can be chemically restored before replacement becomes necessary.
Is this membrane suitable for seawater desalination pretreatment? Yes, it's rated for seawater pre-treatment applications, where UF is commonly used to remove suspended solids, biological material, and turbidity before feed water reaches a downstream RO desalination stage.
Can multiple XP 77 IG elements be used together in one system? Yes, industrial UF systems commonly use multiple elements in parallel or staged configurations to reach a plant's required total throughput, with each element contributing its rated flow capacity to the overall system.
Does Pearl Water offer alternatives to this UF membrane? Yes, Pearl Water also stocks the XP 51 IP IG for height-restricted installations and the Toray HFU-2020AN Ultrafiltration Membrane as an alternative brand within the same UF category.
