Water Softener: complete range for professionals | Orus Duplex
Discover DIMM’s range of water softeners for professionals. Orus Duplex: electricity-free water softener, dual-column, compact. Specifications, benefits and visuals.
The water softener for a single-family home or apartment is today the benchmark equipment for treating limescale in drinking water. Faced with consumers increasingly sensitive to water quality, the residential treatment market is experiencing sustained growth.
For water treatment professionals, this is an opportunity to offer reliable, durable, and purpose-built anti-limescale solutions for each type of dwelling, partnering with a recognized supplier such as DIMM.
Orus Duplex — The electricity-free water softener
The Orus Duplex is a premium, compact, and self-contained water softener that operates without any electricity. Designed to install discreetly — under a sink, in a cabinet, or a utility room — it delivers high-performance results thanks to its duplex technology with volumetric regeneration and counter-current flow.
Dual-column technology: softened water 24/7
The Orus Duplex incorporates two independent resin columns (2 × 4.6 liters). While one regenerates, the other takes over: you benefit from continuously softened water with no interruption, even during regeneration. This automatic switchover ensures a steady supply of softened water around the clock.
Counter-current regeneration (Up Flow)
Unlike conventional softeners, the Orus regenerates its resin counter-current, using already-softened water. This process reduces salt consumption by up to 40 % compared to a traditional softener. Regeneration takes only 10 minutes and consumes just 0.40 kg of salt and 20 liters of water per cycle.
Zero electricity — Installation flexibility
The Orus operates solely on water pressure. No electrical outlet, no cables: install it exactly where you need it. Connection is made from either the left or right side, simplifying installation in tight spaces. Compact dimensions: 281 × 480 × 508 mm.
Key benefits of the Orus Duplex
- No electricity — operates solely on water pressure, no outlet needed
- Dual-column — softened water 24/7 even during regeneration
- Economical — counter-current regeneration = up to 40 % less salt
- Volumetric — regeneration triggered only when necessary
- Compact — fits under the sink or in a cabinet
- Silent — no motor or active electronics
- Exclusive salt blocks — clean and quick refills (4 kg blocks)
- ACS-certified resin — approved for drinking water contact
Technical specifications
| Feature | Value |
|---|---|
| Resin volume | 9.2 L (2 × 4.6 L) |
| Regeneration type | Up flow (counter-current) immediate volumetric |
| Resin type | Cationic ACS-approved |
| Nominal flow rate | 1.8 m³/h |
| Operating pressure | 1 to 8.3 bar |
| Maximum hardness treated | 55 °f |
| Temperature | 2 to 50 °C |
| Salt capacity | 10 kg (4 kg blocks) |
| Salt consumption / cycle | 0.40 kg |
| Water used / cycle | 20 L |
| Regeneration duration | 10 minutes |
| Dimensions | 281 × 480 × 508 mm |
| Connection | ¾" or 1" |
Discover the dedicated Orus website →
Why is water limescale-rich and why should it be treated?
Water flowing through our pipes naturally contains calcium and magnesium, responsible for what we call water hardness (measured in French degrees, °f). The harder the water, the more significant the limescale deposits.
Consequences of hard water in the home:
- Scaling of pipes and sanitary equipment (water heater, washing machine, dishwasher)
- Increased energy consumption: 1 mm of scale = 10 % more energy
- Reduced lifespan of household appliances
- Dry skin, irritation: limescale irritates sensitive skin
- White deposits on faucets, shower walls, and dishes
Which solution based on home size?
The choice of treatment system should be personalized based on several criteria: number of occupants, number of water outlets, local water hardness, and available installation space.
Water softener for single-family homes (3 to 6 people)
- Ideal for a family in a home with multiple bathrooms
- Installation in a technical room, garage, or utility room
- Resin volume suited to flow rate and daily consumption
- Recommended models: volumetric or timer-based softeners with 15 to 30 liters of resin
Compact water softener for apartments (1 to 3 people)
- Monobloc model or with separate tank
- Compact footprint: under sink, technical cabinet, or storage room
- Reduced resin volume (5 to 12 liters)
- The Orus Duplex is the ideal solution for this type of installation thanks to its ultra-compact dimensions and electricity-free operation
Limescale treatment technologies
The ion-exchange resin water softener is recognized as the most effective and proven technology for treating limescale in domestic water. The main technologies include:
- Timer-based softener: regeneration scheduled at fixed intervals, regardless of actual consumption
- Volumetric softener: regeneration triggered based on actual water volume consumed — more economical with salt and water
- Duplex softener (dual-column): two resin columns for continuous softened water, even during regeneration — this is Orus technology
- Scale inhibitor: complementary solution for installations where a conventional softener cannot be installed
Why offer an anti-limescale solution to your customers?
For installers, technicians, plumbers, or specialized distributors, the residential softening market represents a significant growth driver. Today's consumer is well-informed about limescale effects and actively seeks solutions.
By offering a product like the Orus Duplex, you provide your customers with a premium solution, with no electrical installation constraints, minimal maintenance, and guaranteed performance. It's a strong sales argument that builds loyalty and generates consumable sales (salt, filters).
DIMM, your anti-limescale solution provider
DIMM specializes in distributing water treatment systems for professionals since 1991. Headquartered in Poperinge (Belgium) with a presence in Steenvoorde (France), DIMM offers a complete range of softeners — timer-based, volumetric, and duplex — plus all associated consumables and spare parts.
DIMM provides its professional partners with comprehensive support: dedicated account management, technical support, case studies, permanent stock, and fast shipping from a modern warehouse exceeding 15,000 m².
Contact DIMM to discover our water softener range and obtain a personalized quote.