HM Range
Protect your vessels, marine equipment, and water systems from the effects of limescale, biofouling, and corrosion with the HydroFLOW® Marine Range. Designed for ships, offshore platforms, and marine facilities, our innovative technology helps optimise system performance, reduce maintenance, and improve operational efficiency-all without the use of chemicals or salts.
A Smarter Approach to Industrial Water Treatment
The HydroFLOW® HM Range is specifically engineered to help prevent limescale buildup, minimise biofouling, and enhance water system efficiency in harsh marine environments. Unlike traditional chemical-based treatments, HydroFLOW® works throughout the entire piping and water system, improving performance and reducing the need for descaling, chemical dosing, and frequent maintenance shutdowns.

Experience the Difference with HM Range
Reduces Limescale and Hard Mineral Deposits – Helps maintain heat exchanger efficiency and engine cooling performance.
Minimises Biofouling and Corrosion – Inhibits algae, barnacle, and biofilm growth while protecting metal surfaces from degradation.
Optimises Energy Efficiency – Maintains effective heat transfer and reduces energy demand for marine operations.
Lowers Energy & Maintenance Costs – Reduces fuel consumption and improves equipment efficiency.
Eco-Friendly & Chemical-Free – No need for chemical dosing or water softeners.
Limescale, biofouling, and inefficient water treatment can cause operational disruptions and costly maintenance in marine applications:
🚢 Limescale in Desalination Plants and Cooling Systems – Reduces operational efficiency and increases downtime.
⚓ Biofouling in Seawater Cooling Loops – Algae and barnacle buildup cause flow restrictions and accelerated corrosion.
⚙️ Corrosion of Engines and Piping Networks – Leads to system failures and high repair costs.
💧 Sediment and Fouling in Water Treatment Systems – Increases maintenance burdens and reduces filtration efficiency.
💰 High Chemical Consumption and Environmental Impact – Traditional treatments demand continuous chemical use and create waste.
By reducing scaling, biofouling, and water inefficiencies, HydroFLOW® HM Range helps improve long-term performance and reliability.
How Does HydroFLOW® HM Range Work?
HydroFLOW® HM units apply an electric field throughout the entire piping system, altering how dissolved mineral ions and biological materials behave. Instead of forming hard scale or biofouling layers on surfaces, minerals remain in suspension and biological organisms find it harder to attach, dramatically reducing deposits and improving system reliability.
✔ Improves System Efficiency – Maintains optimal water flow, cooling performance, and heat exchange.
✔ Reduces Maintenance & Downtime – Minimises manual cleaning, chemical dosing, and descaling interventions.
✔ Supports Sustainable Marine Operations – Eco-friendly, cost-effective, and compliant with environmental regulations.
Installation & Power Options for the HydroFLOW® HM Range
The best installation location depends on your specific marine application, ensuring maximum effectiveness in boilers, seawater cooling systems, and onboard water treatment units.
The HydroFLOW® HM Range requires hardwired installation. While it remains relocatable if system requirements change, optimal placement is crucial, and moving the unit without guidance may affect performance. Contact us to determine the best location and setup for your system. Schedule a consultation today to ensure optimal efficiency and performance.

Best Location
The installation location depends on your specific water system setup. To ensure optimal performance and proper placement, our team will assess your system and provide tailored guidance.

Pipe Size & Type
The HM Range fits pipe sizes up to 200mm (7.87 inches) in diameter.
It works on all pipe materials, including copper, PVC, PEX, and stainless steel.

POWER SUPPLY
The HydroFLOW® HM Range requires hardwired installation into your industrial facility’s electrical supply. While relocatable, optimal placement is crucial for efficiency. Moving the unit may reduce performance. Contact our team to determine the best location for your system.
FAQs
Click below to read FAQs about HydroFLOW® products.
How does HydroFLOW® work?
HydroFLOW® uses a chemical-free signal to prevent limescale buildup, biofouling, and sediment accumulation. It also gradually dissolves existing scale, improving system efficiency without altering water chemistry.
Does HydroFLOW® work on all pipe materials?
Yes, it works on copper, PVC, PEX, stainless steel, and all other piping materials.
Where should I install HydroFLOW®?
For Domestic Units:
Install HydroFLOW® on the cold water feed to the boiler, heat exchanger, or water heater for optimal protection. If this is not feasible, it can be placed anywhere between the cold water stopcock and the boiler or cylinder.
For Commercial, Industrial, and Marine Applications:
Placement depends on the specific system. In most cases, HydroFLOW® should be installed on the cold feed to the heat exchanger or key equipment to ensure maximum protection. For complex systems, consult a specialist to determine the best location.
Is it easy to install?
Yes, install it onto the pipe and plug it in - no plumbing modifications or maintenance required.
How do I know it's working?
The unit has LED indicators:
- Pearl and Pearl Plus have a rotating blue LED pattern, showing that the signal is actively being transmitted.
- K40 and HS40 have a single red LED to confirm operation.
- Commercial and industrial models have red and green light - green for power, red for signal strength.
Does HydroFLOW® require electricity?
Yes, it operates on standard mains power, using minimal energy (around £4 per year for residential units).
How long does HydroFLOW® last?
With no moving parts, units are highly durable. Residential units come with 3 year manufacturer warranty.
Commercial and Industrial units come with 3- or 5-year manufacturer's warranty, but many last over 15 years.
How does HydroFLOW® compare to water softeners?
Unlike softeners, HydroFLOW® protects the entire plumbing system without chemicals or salt, retaining essential minerals in drinking water.
Where does the dissolved scale go?
Dissolved limescale is flushed or filtered out of the system. In some cases, it settles as a fine powder at the bottom of tanks or basins, which can be periodically cleaned.
Does flow rate matter?
No. HydroFLOW® works effectively regardless of water flow rate and even treats standing water.
Will it protect my central heating system?
Yes, it prevents scale buildup in boilers, heat exchangers, and radiators, improving efficiency and longevity.
How do I see results?
Results depend on water hardness and system condition. Existing scale gradually dissolves over weeks or months, while new scale formation is immediately reduced.
What's the difference between small and large HydroFLOW® units?
Larger units have a higher power output and are designed for commercial, industrial, and marine applications.
Is the water still safe to drink?
Yes, HydroFLOW® does not change water chemistry, keeping it safe and mineral-rich.
Is HydroFLOW® covered by a warranty?
Yes, residential units include a 3-year manufacturer's warranty.
Commercial and industrial units are available with a 3-year manufacturer's warranty with an option to upgrade the warranty up to 5-years.
Trusted & Recommended - HydroFLOW®
HydroFLOW® provides a chemical-free solution for residential, commercial, industrial, and marine applications, preventing limescale buildup, biofouling, sediment accumulation, and enhancing flocculation in boilers, heat exchangers, cooling systems, pools, and piping networks.
By improving efficiency, reducing maintenance, and extending equipment lifespan, HydroFLOW® ensures a hassle-free, eco-friendly approach to water treatment.


sales@hydropath.com

+44 (0) 115 986 9966
