Meet the IWE Reverse Osmosis Family

Not every application requires the same reverse osmosis system. That’s why we’ve developed a complete range of UK-manufactured RO systems covering everything from small process applications through to large industrial installations.

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IWE Compact

Flow rate: Up to 150 LPH

Best suited for

The Compact Range is ideal where space is limited but consistent, high-quality RO water is essential.

Typical applications include:

• Laboratories
• Small manufacturing processes
• Washdown systems
• Coffee roasting
• Hydroponics
• Window cleaning
• Small boiler feed

Standard features

• UK manufactured
• 316 stainless steel frame and pipework
• Fully programmable controller
• Stainless control valves
• Fully factory tested
• Compact footprint
• High recovery design

Why customers choose it

Unlike many imported “budget” RO systems, the IWE Compact is built using industrial-grade components rather than light commercial hardware. This means greater reliability, easier servicing and a much longer operating life.

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IWE Compact IBC

Why we developed it

Many customers wanted an RO system that could simply be delivered, connected and producing water within minutes.

Mounting the complete system onto a 1000-litre IBC creates a fully self-contained mobile water treatment solution.

Ideal for:

• Hire fleets
• Temporary installations
• Construction sites
• Emergency water supply
• Remote locations
• Pilot projects

Standard equipment

• 1000 L integrated storage
• High-level switch
• Stainless inlet filter
• 316 stainless construction
• Fully programmable controller
• Factory tested before dispatch

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IWE Pro Range

Flow rate: 300–1500 LPH

This is our most popular industrial reverse osmosis range.

Designed for continuous industrial operation, the Pro Range offers exceptional efficiency while maintaining a compact footprint.

Typical industries

• Food & beverage
• Manufacturing
• Engineering
• Healthcare
• Automotive
• Printing
• Agriculture

Standard features

• 316 stainless frame and pipework
• IP65 electrical enclosure
• Fully programmable PLC
• Stainless solenoids
• 2-line LED display
• Fully factory tested
• High recovery design

Optional upgrades

• Inverter-driven pumps
• Antiscalant dosing
• Bunded skid with leak detection
• Customer colours
• Customer branding
• Remote monitoring
• Bespoke controls

Why choose the Pro Range?

Many imported RO systems are built to meet a price point. Our Pro Range is engineered to maximise efficiency, simplify maintenance and provide dependable long-term performance in demanding industrial environments.

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Promax 4

Flow Rate: 2,000–3,500 LPH

When higher production volumes are required, the Promax 4 Range delivers outstanding performance without compromising on efficiency or reliability.

Designed for demanding industrial environments, these systems offer increased membrane capacity, robust construction and high recovery rates, making them ideal for businesses where water quality and production consistency are critical.

Typical Applications

• Food & beverage manufacturing
• Engineering and fabrication
• Boiler feed water
• Car wash and vehicle manufacturing
• Process water treatment
• Chemical production

Standard Features

• Heavy-duty stainless steel frame
• 316 stainless steel pipework
• Industrial-grade pressure vessels
• Fully programmable PLC control
• Low and high-pressure protection
• Automatic membrane flushing
• High-quality industrial pumps
• Fully factory tested before dispatch

Optional Upgrades

• Variable speed (inverter-driven) pumps
• Antiscalant dosing systems
• Automatic permeate flushing
• Remote monitoring
• Conductivity monitoring
• Feed water break tanks
• Custom skid layouts

Why Choose the Promax 4?

Unlike many imported systems that use lightweight components, the Promax 4 is engineered for continuous industrial operation. Every component is selected for durability, ease of maintenance and long service life, helping reduce downtime and overall operating costs.

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Promax 8

Flow Rate: 4,300–12,000 LPH

The Promax 8 represents the flagship of the standard IWE reverse osmosis range.

Designed for large industrial facilities with significant daily water demand, these systems combine exceptional production capacity with outstanding efficiency and water quality.

Whether supplying production lines, manufacturing processes or central water treatment systems, the Promax 8 is built to perform around the clock.

Typical Applications

• Large manufacturing facilities
• Food processing plants
• Beverage production
• Commercial laundries
• Electronics manufacturing
• Industrial process water

Standard Features

• Multiple membrane configuration
• High-efficiency industrial pumps
• Heavy-duty stainless steel skid
• 316 stainless steel pipework
• Industrial PLC control system
• Automatic flushing programme
• Low energy design
• Full factory testing

Optional Upgrades

• Duty/standby pumps
• Full telemetry and remote diagnostics
• Chemical dosing systems
• Energy recovery options
• Bespoke instrumentation
• Customer-specific control philosophy

Why Choose the Promax 8?

Large RO systems represent a significant investment. The Promax 8 has been designed to maximise membrane life, minimise maintenance requirements and provide reliable production for years to come. Customers benefit from premium construction, excellent aftersales support and the reassurance of UK manufacture.

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Duplex

Flow Rate: 12,000+ LPH

When continuous water production is essential, the Duplex Range offers complete peace of mind.

Rather than relying on a single large RO system, the Duplex incorporates two independent reverse osmosis units within one integrated package.

Each system can operate independently or together, providing exceptional flexibility and resilience.

Ideal For

• Critical manufacturing processes
• Food factories
• Hospitals
• Continuous production environments
• Businesses where downtime is unacceptable

Key Benefits

• True duty/standby operation
• Redundancy built in
• Reduced production downtime
• Easier maintenance scheduling
• Increased operational flexibility
• Higher overall system availability

Optional Features

• Automatic changeover
• Load-sharing operation
• Remote monitoring
• Advanced alarm management
• BMS integration
• Bespoke control software

Why Choose the Duplex?

Many manufacturers simply install a larger single RO system. The Duplex approach provides built-in redundancy, allowing maintenance to be carried out without stopping production. For mission-critical applications, this can save thousands in lost production and emergency downtime.

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Twin Pass

Designed for Ultra-High Purity Water

Some industries require water quality beyond the capabilities of a conventional single-pass reverse osmosis system.

The Twin Pass Range uses two stages of reverse osmosis, with the permeate from the first stage feeding directly into a second RO system.

The result is exceptionally low conductivity and extremely high purity water suitable for the most demanding applications.

Typical Applications

• Electronics production
• Laboratories
• Semiconductor industries
• High-purity rinse water
• Healthcare
• Specialist manufacturing

Standard Features

• Two-stage reverse osmosis process
• High rejection membranes
• Low conductivity operation
• Industrial PLC controls
• Automatic flushing cycles
• Heavy-duty stainless steel construction
• Factory performance testing

Optional Upgrades

• UV sterilisation
• Electrodeionisation (EDI)
• Degassing systems
• Final polishing cartridges
• TOC monitoring
• Remote diagnostics
• Bespoke instrumentation

Why Choose Twin Pass?

Where water quality cannot be compromised, a second RO stage provides significantly improved contaminant rejection compared with a standard single-pass system. Combined with IWE’s industrial construction and expert design, the Twin Pass Range delivers reliable ultra-pure water for the most demanding applications.

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Why Choose an IWE Reverse Osmosis System?

Rather than just listing features, explain the engineering philosophy behind your systems:

• Designed and manufactured in the UK – Every system is built and factory-tested at your Derbyshire facility.
• Industrial-grade construction – 316 stainless steel pipework and frames are used throughout, rather than lighter-duty materials where appropriate.
• Built around premium components – Proven pumps, valves and controls selected for reliability and serviceability.
• Custom-built to suit your process – Standard ranges can be tailored with colours, branding, instrumentation and upgrade options.
• Engineered for long-term ownership – Easy access for servicing, spare parts availability and technical support help minimise downtime.
• Backed by experienced engineers – From specification through commissioning and aftercare, customers deal directly with a specialist water treatment team.

That moves the page beyond “here are our products” into “here’s why our engineering approach is different,” which is far more persuasive for industrial buyers.