
Whole-House Water Purification
17 products

Industrial water purification systems based on reverse osmosis, ultrafiltration and softening for factories, hotels, hospitals and production facilities.
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In industrial production processes, water is not just a raw material; it is also one of the most important components of quality, efficiency and sustainability. Industrial water purification systems optimise the quality of the water used in production facilities, extend the life of machinery and reduce energy consumption, giving businesses technical and economic advantages.
With 80 years of experience and FDA, NSF and Water Quality Association certified technologies, Rainwater offers reliable water purification solutions on an industrial scale. Our industrial-type water purification systems are engineered specifically for each sector and water quality, delivering long-lasting, efficient and environmentally conscious performance.
Raw water used in industry often contains high levels of sediment, limescale, heavy metals, salts and microorganisms. This adversely affects not only product quality but also machine performance and production efficiency.
Industrial water purification systems eliminate these risks and improve the physical and chemical properties of the water. With purified water:
Rainwater industrial systems do more than provide businesses with clean water; they also build a sustainable production infrastructure.
Industrial water purifiers work with multi-stage filtration technology. Each stage targets a different type of contaminant in the water. Water purification filters come in here:
Rainwater optimises all these processes with automatic control panels (PLC), so the system delivers maximum efficiency with minimum energy consumption.
In industrial facilities, water quality directly affects many factors, from production efficiency to equipment life. Rainwater industrial water purification systems do more than clean water with high-tech filtration and purification processes; they also give businesses long-term energy, maintenance and cost advantages. Offering dedicated solutions for many different sectors, such as food, textiles, chemicals, energy and metals, Rainwater puts you fully in control of your water with system designs optimised for each facility’s needs.
Purified water delivers consistent, stable results in processes. Particularly in the food, textile and pharmaceutical industries, water quality directly affects product quality.
Rainwater systems operate in an environmentally conscious way with low energy consumption and recovery modules. This reduces both resource consumption and operating costs.
Water free of limescale and sediment minimises the risk of clogging and wear in production machinery. This brings long-term savings on maintenance and repair costs.
By using water efficiently throughout their life cycle, Rainwater systems support sustainable production goals in industrial facilities.
Durable components, automatic backwash systems and the advantage of locally manufactured spare parts deliver long-lasting, reliable performance.
Industrial water purification systems are used in many sectors where water plays a critical role:
Rainwater develops modular, scalable system solutions tailored to each business.
The main models and technologies are:
The Rainwater engineering team designs these systems according to the characteristics of your water source, your process requirements and your capacity needs.
The price of industrial water purification systems is determined by system capacity, water analysis results, the technology used and bespoke project designs.
Rainwater develops bespoke engineering solutions for each business and offers the most suitable technical configuration.
“Every facility’s water is different; that is why Rainwater solutions are bespoke.”
For project-specific pricing and engineering support, contact the Rainwater team and create a system plan suited to your facility free of charge.
The quality of the water used in food production directly affects the product’s taste, shelf life and hygiene standards. Rainwater food industry water purification systems offer FDA and NSF-approved filtration solutions for drinking water, process water and CIP (cleaning) processes.
In textile production, the hardness and mineral content of water affect dye uptake quality and fabric texture. Softening and reverse osmosis systems ensure colour consistency and savings on raw materials.
In surface treatment, painting and cooling processes, limescale-free pure water extends equipment life and improves surface quality. Rainwater industrial water purification systems are configured specifically for these processes.
The hardness of the water used in boilers leads to scaling and a loss of energy efficiency. Water softening and demineralisation systems deliver energy savings and long equipment life.
Ultrafiltration and reverse osmosis systems are used for processes requiring microbiological purity. Rainwater systems are engineered in compliance with GMP standards.
In high-capacity settings, central water purification systems both improve drinking water quality and reduce equipment maintenance costs.
As in industrial production facilities, water quality in factories directly affects production efficiency, product standards and equipment life. This is where factory water purification systems come in, optimising the physical, chemical and microbiological balance of the water used in processes to guarantee both quality and sustainability.
With the factory water purifier solutions it has developed specifically for industrial and production facilities, Rainwater offers system designs suited to the needs of factories of every capacity. These systems are engineered specifically for use in high-flow production lines, steam boilers, cooling towers or washing processes.
Factory water purification solutions draw on Rainwater’s industrial filtration technologies. Reverse osmosis, ultrafiltration, activated carbon, sand filter and ion exchange systems provide effective purification at every stage. As a result, water hardness is reduced, scaling and corrosion are prevented, and machine efficiency is increased.
The Rainwater engineering team also offers factories a dedicated analysis service. Thanks to bespoke project planning based on the water source, the systems run with high efficiency and low energy consumption. Factories in sectors such as food, textiles, metals, energy or automotive gain long-term operating savings and the advantage of environmentally friendly production with Rainwater water purification systems.
Factory water purifier models are easy to maintain, with a compact design, automatic control panel (PLC) and durable components. Because these systems are designed for 24/7 operation, production continuity is never interrupted. In addition, all Rainwater factory water purification systems are manufactured with FDA, NSF and Water Quality Association certified components.
In industrial water purification, Rainwater offers not just a device but a fully integrated system approach. Quality, sustainability and performance are the priority at every step.
Rainwater offers a bespoke industrial purification system design based on your production facility’s water analysis.
Get in touch now for engineering support, a site survey and project planning —
Make your water safe, efficient and sustainable with Rainwater.
The system combines multi-stage filtration technologies (RO, UF, activated carbon, softening) to remove sediment, limescale, chemicals and microorganisms.
It is used in all facilities with high water consumption, particularly in the food, textile, energy, chemical, automotive, pharmaceutical and hospitality sectors.
Rainwater systems deliver energy efficiency with advanced filtration technology and hold international certifications.
Filters are generally replaced every 6 to 12 months; periodic checks based on system performance are recommended.
With regular maintenance, Rainwater industrial water purification systems run efficiently for 10–15 years.
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